diff options
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-7.2.inc | 1 | ||||
| -rw-r--r-- | meta/recipes-devtools/gcc/gcc-7.2/gcc-intel.patch | 2935 |
2 files changed, 2936 insertions, 0 deletions
diff --git a/meta/recipes-devtools/gcc/gcc-7.2.inc b/meta/recipes-devtools/gcc/gcc-7.2.inc index 1d40cba7317..aec473c0fd9 100644 --- a/meta/recipes-devtools/gcc/gcc-7.2.inc +++ b/meta/recipes-devtools/gcc/gcc-7.2.inc @@ -75,6 +75,7 @@ SRC_URI = "\ file://0048-gcc-Enable-static-PIE.patch \ file://fix-segmentation-fault-precompiled-hdr.patch \ file://0050-RISC-V-Handle-non-legitimate-address-in-riscv_legiti.patch \ + file://gcc-intel.patch \ ${BACKPORTS} \ " BACKPORTS = "\ diff --git a/meta/recipes-devtools/gcc/gcc-7.2/gcc-intel.patch b/meta/recipes-devtools/gcc/gcc-7.2/gcc-intel.patch new file mode 100644 index 00000000000..70db553cfd2 --- /dev/null +++ b/meta/recipes-devtools/gcc/gcc-7.2/gcc-intel.patch @@ -0,0 +1,2935 @@ +diff --git a/gcc/config/i386/constraints.md b/gcc/config/i386/constraints.md +index 38d604fdace..697caf704dd 100644 +--- a/gcc/config/i386/constraints.md ++++ b/gcc/config/i386/constraints.md +@@ -198,16 +198,20 @@ + + (define_constraint "Bs" + "@internal Sibcall memory operand." +- (ior (and (not (match_test "TARGET_X32")) ++ (ior (and (not (match_test "TARGET_X32 ++ || ix86_indirect_branch_thunk_register")) + (match_operand 0 "sibcall_memory_operand")) +- (and (match_test "TARGET_X32 && Pmode == DImode") ++ (and (match_test "TARGET_X32 && Pmode == DImode ++ && !ix86_indirect_branch_thunk_register") + (match_operand 0 "GOT_memory_operand")))) + + (define_constraint "Bw" + "@internal Call memory operand." +- (ior (and (not (match_test "TARGET_X32")) ++ (ior (and (not (match_test "TARGET_X32 ++ || ix86_indirect_branch_thunk_register")) + (match_operand 0 "memory_operand")) +- (and (match_test "TARGET_X32 && Pmode == DImode") ++ (and (match_test "TARGET_X32 && Pmode == DImode ++ && !ix86_indirect_branch_thunk_register") + (match_operand 0 "GOT_memory_operand")))) + + (define_constraint "Bz" +diff --git a/gcc/config/i386/i386-opts.h b/gcc/config/i386/i386-opts.h +index 542cd0f3d67..b7b8fd280a3 100644 +--- a/gcc/config/i386/i386-opts.h ++++ b/gcc/config/i386/i386-opts.h +@@ -99,4 +99,18 @@ enum stack_protector_guard { + SSP_GLOBAL /* global canary */ + }; + ++enum indirect_branch { ++ indirect_branch_unset = 0, ++ indirect_branch_keep, ++ indirect_branch_thunk, ++ indirect_branch_thunk_inline, ++ indirect_branch_thunk_extern ++}; ++ ++enum indirect_branch_loop { ++ indirect_branch_loop_lfence, ++ indirect_branch_loop_pause, ++ indirect_branch_loop_nop ++}; ++ + #endif +diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h +index 8bdd67eb608..a78bfa00427 100644 +--- a/gcc/config/i386/i386-protos.h ++++ b/gcc/config/i386/i386-protos.h +@@ -315,6 +315,8 @@ extern enum attr_cpu ix86_schedule; + #endif + + extern const char * ix86_output_call_insn (rtx_insn *insn, rtx call_op); ++extern const char * ix86_output_indirect_jmp (rtx call_op, bool ret_p); ++extern const char * ix86_output_function_return (bool long_p); + extern bool ix86_operands_ok_for_move_multiple (rtx *operands, bool load, + enum machine_mode mode); + +diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c +index dc14d205de7..6cb0681233a 100644 +--- a/gcc/config/i386/i386.c ++++ b/gcc/config/i386/i386.c +@@ -2441,53 +2441,6 @@ struct GTY(()) stack_local_entry { + struct stack_local_entry *next; + }; + +-/* Structure describing stack frame layout. +- Stack grows downward: +- +- [arguments] +- <- ARG_POINTER +- saved pc +- +- saved static chain if ix86_static_chain_on_stack +- +- saved frame pointer if frame_pointer_needed +- <- HARD_FRAME_POINTER +- [saved regs] +- <- regs_save_offset +- [padding0] +- +- [saved SSE regs] +- <- sse_regs_save_offset +- [padding1] | +- | <- FRAME_POINTER +- [va_arg registers] | +- | +- [frame] | +- | +- [padding2] | = to_allocate +- <- STACK_POINTER +- */ +-struct ix86_frame +-{ +- int nsseregs; +- int nregs; +- int va_arg_size; +- int red_zone_size; +- int outgoing_arguments_size; +- +- /* The offsets relative to ARG_POINTER. */ +- HOST_WIDE_INT frame_pointer_offset; +- HOST_WIDE_INT hard_frame_pointer_offset; +- HOST_WIDE_INT stack_pointer_offset; +- HOST_WIDE_INT hfp_save_offset; +- HOST_WIDE_INT reg_save_offset; +- HOST_WIDE_INT sse_reg_save_offset; +- +- /* When save_regs_using_mov is set, emit prologue using +- move instead of push instructions. */ +- bool save_regs_using_mov; +-}; +- + /* Which cpu are we scheduling for. */ + enum attr_cpu ix86_schedule; + +@@ -2579,7 +2532,7 @@ static unsigned int ix86_function_arg_boundary (machine_mode, + const_tree); + static rtx ix86_static_chain (const_tree, bool); + static int ix86_function_regparm (const_tree, const_tree); +-static void ix86_compute_frame_layout (struct ix86_frame *); ++static void ix86_compute_frame_layout (void); + static bool ix86_expand_vector_init_one_nonzero (bool, machine_mode, + rtx, rtx, int); + static void ix86_add_new_builtins (HOST_WIDE_INT, HOST_WIDE_INT); +@@ -4256,12 +4209,19 @@ make_pass_stv (gcc::context *ctxt) + return new pass_stv (ctxt); + } + +-/* Return true if a red-zone is in use. */ ++/* Return true if a red-zone is in use. We can't use red-zone when ++ there are local indirect jumps, like "indirect_jump" or "tablejump", ++ which jumps to another place in the function, since "call" in the ++ indirect thunk pushes the return address onto stack, destroying ++ red-zone. */ + + bool + ix86_using_red_zone (void) + { +- return TARGET_RED_ZONE && !TARGET_64BIT_MS_ABI; ++ return (TARGET_RED_ZONE ++ && !TARGET_64BIT_MS_ABI ++ && (!cfun->machine->has_local_indirect_jump ++ || cfun->machine->indirect_branch_type == indirect_branch_keep)); + } + + /* Return a string that documents the current -m options. The caller is +@@ -7184,6 +7144,62 @@ ix86_set_func_type (tree fndecl) + } + } + ++/* Set the indirect_branch_type field from the function FNDECL. */ ++ ++static void ++ix86_set_indirect_branch_type (tree fndecl) ++{ ++ if (cfun->machine->indirect_branch_type == indirect_branch_unset) ++ { ++ tree attr = lookup_attribute ("indirect_branch", ++ DECL_ATTRIBUTES (fndecl)); ++ if (attr != NULL) ++ { ++ tree args = TREE_VALUE (attr); ++ if (args == NULL) ++ gcc_unreachable (); ++ tree cst = TREE_VALUE (args); ++ if (strcmp (TREE_STRING_POINTER (cst), "keep") == 0) ++ cfun->machine->indirect_branch_type = indirect_branch_keep; ++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk") == 0) ++ cfun->machine->indirect_branch_type = indirect_branch_thunk; ++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk-inline") == 0) ++ cfun->machine->indirect_branch_type = indirect_branch_thunk_inline; ++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk-extern") == 0) ++ cfun->machine->indirect_branch_type = indirect_branch_thunk_extern; ++ else ++ gcc_unreachable (); ++ } ++ else ++ cfun->machine->indirect_branch_type = ix86_indirect_branch; ++ } ++ ++ if (cfun->machine->function_return_type == indirect_branch_unset) ++ { ++ tree attr = lookup_attribute ("function_return", ++ DECL_ATTRIBUTES (fndecl)); ++ if (attr != NULL) ++ { ++ tree args = TREE_VALUE (attr); ++ if (args == NULL) ++ gcc_unreachable (); ++ tree cst = TREE_VALUE (args); ++ if (strcmp (TREE_STRING_POINTER (cst), "keep") == 0) ++ cfun->machine->function_return_type = indirect_branch_keep; ++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk") == 0) ++ cfun->machine->function_return_type = indirect_branch_thunk; ++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk-inline") == 0) ++ cfun->machine->function_return_type = indirect_branch_thunk_inline; ++ else if (strcmp (TREE_STRING_POINTER (cst), "thunk-extern") == 0) ++ cfun->machine->function_return_type = indirect_branch_thunk_extern; ++ else ++ gcc_unreachable (); ++ } ++ else ++ cfun->machine->function_return_type = ix86_function_return; ++ } ++} ++ + /* Establish appropriate back-end context for processing the function + FNDECL. The argument might be NULL to indicate processing at top + level, outside of any function scope. */ +@@ -7199,7 +7215,10 @@ ix86_set_current_function (tree fndecl) + one is extern inline and one isn't. Call ix86_set_func_type + to set the func_type field. */ + if (fndecl != NULL_TREE) +- ix86_set_func_type (fndecl); ++ { ++ ix86_set_func_type (fndecl); ++ ix86_set_indirect_branch_type (fndecl); ++ } + return; + } + +@@ -7219,6 +7238,7 @@ ix86_set_current_function (tree fndecl) + } + + ix86_set_func_type (fndecl); ++ ix86_set_indirect_branch_type (fndecl); + + tree new_tree = DECL_FUNCTION_SPECIFIC_TARGET (fndecl); + if (new_tree == NULL_TREE) +@@ -11879,8 +11899,6 @@ symbolic_reference_mentioned_p (rtx op) + bool + ix86_can_use_return_insn_p (void) + { +- struct ix86_frame frame; +- + /* Don't use `ret' instruction in interrupt handler. */ + if (! reload_completed + || frame_pointer_needed +@@ -11892,7 +11910,8 @@ ix86_can_use_return_insn_p (void) + if (crtl->args.pops_args && crtl->args.size >= 32768) + return 0; + +- ix86_compute_frame_layout (&frame); ++ ix86_compute_frame_layout (); ++ struct ix86_frame &frame = cfun->machine->frame; + return (frame.stack_pointer_offset == UNITS_PER_WORD + && (frame.nregs + frame.nsseregs) == 0); + } +@@ -11957,6 +11976,242 @@ ix86_setup_frame_addresses (void) + # endif + #endif + ++static int indirectlabelno; ++static bool indirect_thunk_needed = false; ++static bool indirect_thunk_bnd_needed = false; ++ ++static int indirect_thunks_used; ++static int indirect_thunks_bnd_used; ++ ++#ifndef INDIRECT_LABEL ++# define INDIRECT_LABEL "LIND" ++#endif ++ ++/* Fills in the label name that should be used for the indirect thunk. */ ++ ++static void ++indirect_thunk_name (char name[32], int regno, bool need_bnd_p, ++ bool ret_p) ++{ ++ if (regno >= 0 && ret_p) ++ gcc_unreachable (); ++ ++ if (USE_HIDDEN_LINKONCE) ++ { ++ const char *bnd = need_bnd_p ? "_bnd" : ""; ++ if (regno >= 0) ++ { ++ const char *reg_prefix; ++ if (LEGACY_INT_REGNO_P (regno)) ++ reg_prefix = TARGET_64BIT ? "r" : "e"; ++ else ++ reg_prefix = ""; ++ sprintf (name, "__x86.indirect_thunk%s.%s%s", ++ bnd, reg_prefix, reg_names[regno]); ++ } ++ else ++ { ++ const char *ret = ret_p ? "return" : "indirect"; ++ sprintf (name, "__x86.%s_thunk%s", ret, bnd); ++ } ++ } ++ else ++ { ++ if (regno >= 0) ++ { ++ if (need_bnd_p) ++ ASM_GENERATE_INTERNAL_LABEL (name, "LITBR", regno); ++ else ++ ASM_GENERATE_INTERNAL_LABEL (name, "LITR", regno); ++ } ++ else ++ { ++ if (ret_p) ++ { ++ if (need_bnd_p) ++ ASM_GENERATE_INTERNAL_LABEL (name, "LRTB", 0); ++ else ++ ASM_GENERATE_INTERNAL_LABEL (name, "LRT", 0); ++ } ++ else ++ { ++ if (need_bnd_p) ++ ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0); ++ else ++ ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0); ++ } ++ } ++ } ++} ++ ++static void ++output_indirect_thunk (bool need_bnd_p, int regno) ++{ ++ char indirectlabel1[32]; ++ char indirectlabel2[32]; ++ ++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel1, INDIRECT_LABEL, ++ indirectlabelno++); ++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel2, INDIRECT_LABEL, ++ indirectlabelno++); ++ ++ /* Call */ ++ if (need_bnd_p) ++ fputs ("\tbnd call\t", asm_out_file); ++ else ++ fputs ("\tcall\t", asm_out_file); ++ assemble_name_raw (asm_out_file, indirectlabel2); ++ fputc ('\n', asm_out_file); ++ ++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1); ++ ++ switch (ix86_indirect_branch_loop) ++ { ++ case indirect_branch_loop_lfence: ++ /* lfence. */ ++ fprintf (asm_out_file, "\tlfence\n"); ++ break; ++ case indirect_branch_loop_pause: ++ /* pause. */ ++ fprintf (asm_out_file, "\tpause\n"); ++ break; ++ case indirect_branch_loop_nop: ++ /* nop. */ ++ fprintf (asm_out_file, "\tnop\n"); ++ break; ++ default: ++ gcc_unreachable (); ++ } ++ ++ /* Jump. */ ++ fputs ("\tjmp\t", asm_out_file); ++ assemble_name_raw (asm_out_file, indirectlabel1); ++ fputc ('\n', asm_out_file); ++ ++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2); ++ ++ if (regno >= 0) ++ { ++ /* MOV. */ ++ rtx xops[2]; ++ xops[0] = gen_rtx_MEM (word_mode, stack_pointer_rtx); ++ xops[1] = gen_rtx_REG (word_mode, regno); ++ output_asm_insn ("mov\t{%1, %0|%0, %1}", xops); ++ } ++ else ++ { ++ /* LEA. */ ++ rtx xops[2]; ++ xops[0] = stack_pointer_rtx; ++ xops[1] = plus_constant (Pmode, stack_pointer_rtx, UNITS_PER_WORD); ++ output_asm_insn ("lea\t{%E1, %0|%0, %E1}", xops); ++ } ++ ++ if (need_bnd_p) ++ fputs ("\tbnd ret\n", asm_out_file); ++ else ++ fputs ("\tret\n", asm_out_file); ++} ++ ++static void ++output_indirect_thunk_function (bool need_bnd_p, int regno) ++{ ++ char name[32]; ++ tree decl; ++ ++ /* Create __x86.indirect_thunk/__x86.indirect_thunk_bnd. */ ++ indirect_thunk_name (name, regno, need_bnd_p, false); ++ decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL, ++ get_identifier (name), ++ build_function_type_list (void_type_node, NULL_TREE)); ++ DECL_RESULT (decl) = build_decl (BUILTINS_LOCATION, RESULT_DECL, ++ NULL_TREE, void_type_node); ++ TREE_PUBLIC (decl) = 1; ++ TREE_STATIC (decl) = 1; ++ DECL_IGNORED_P (decl) = 1; ++ ++#if TARGET_MACHO ++ if (TARGET_MACHO) ++ { ++ switch_to_section (darwin_sections[picbase_thunk_section]); ++ fputs ("\t.weak_definition\t", asm_out_file); ++ assemble_name (asm_out_file, name); ++ fputs ("\n\t.private_extern\t", asm_out_file); ++ assemble_name (asm_out_file, name); ++ putc ('\n', asm_out_file); ++ ASM_OUTPUT_LABEL (asm_out_file, name); ++ DECL_WEAK (decl) = 1; ++ } ++ else ++#endif ++ if (USE_HIDDEN_LINKONCE) ++ { ++ cgraph_node::create (decl)->set_comdat_group (DECL_ASSEMBLER_NAME (decl)); ++ ++ targetm.asm_out.unique_section (decl, 0); ++ switch_to_section (get_named_section (decl, NULL, 0)); ++ ++ targetm.asm_out.globalize_label (asm_out_file, name); ++ fputs ("\t.hidden\t", asm_out_file); ++ assemble_name (asm_out_file, name); ++ putc ('\n', asm_out_file); ++ ASM_DECLARE_FUNCTION_NAME (asm_out_file, name, decl); ++ } ++ else ++ { ++ switch_to_section (text_section); ++ ASM_OUTPUT_LABEL (asm_out_file, name); ++ } ++ ++ if (regno < 0) ++ { ++ /* Create alias for __x86.return_thunk/__x86.return_thunk_bnd. */ ++ char alias[32]; ++ ++ indirect_thunk_name (alias, regno, need_bnd_p, true); ++ ASM_OUTPUT_DEF (asm_out_file, alias, name); ++#if TARGET_MACHO ++ if (TARGET_MACHO) ++ { ++ fputs ("\t.weak_definition\t", asm_out_file); ++ assemble_name (asm_out_file, alias); ++ fputs ("\n\t.private_extern\t", asm_out_file); ++ assemble_name (asm_out_file, alias); ++ putc ('\n', asm_out_file); ++ } ++#else ++ if (USE_HIDDEN_LINKONCE) ++ { ++ fputs ("\t.globl\t", asm_out_file); ++ assemble_name (asm_out_file, alias); ++ putc ('\n', asm_out_file); ++ fputs ("\t.hidden\t", asm_out_file); ++ assemble_name (asm_out_file, alias); ++ putc ('\n', asm_out_file); ++ } ++#endif ++ } ++ ++ DECL_INITIAL (decl) = make_node (BLOCK); ++ current_function_decl = decl; ++ allocate_struct_function (decl, false); ++ init_function_start (decl); ++ /* We're about to hide the function body from callees of final_* by ++ emitting it directly; tell them we're a thunk, if they care. */ ++ cfun->is_thunk = true; ++ first_function_block_is_cold = false; ++ /* Make sure unwind info is emitted for the thunk if needed. */ ++ final_start_function (emit_barrier (), asm_out_file, 1); ++ ++ output_indirect_thunk (need_bnd_p, regno); ++ ++ final_end_function (); ++ init_insn_lengths (); ++ free_after_compilation (cfun); ++ set_cfun (NULL); ++ current_function_decl = NULL; ++} ++ + static int pic_labels_used; + + /* Fills in the label name that should be used for a pc thunk for +@@ -11983,11 +12238,32 @@ ix86_code_end (void) + rtx xops[2]; + int regno; + ++ if (indirect_thunk_needed) ++ output_indirect_thunk_function (false, -1); ++ if (indirect_thunk_bnd_needed) ++ output_indirect_thunk_function (true, -1); ++ ++ for (regno = FIRST_REX_INT_REG; regno <= LAST_REX_INT_REG; regno++) ++ { ++ int i = regno - FIRST_REX_INT_REG + LAST_INT_REG + 1; ++ if ((indirect_thunks_used & (1 << i))) ++ output_indirect_thunk_function (false, regno); ++ ++ if ((indirect_thunks_bnd_used & (1 << i))) ++ output_indirect_thunk_function (true, regno); ++ } ++ + for (regno = AX_REG; regno <= SP_REG; regno++) + { + char name[32]; + tree decl; + ++ if ((indirect_thunks_used & (1 << regno))) ++ output_indirect_thunk_function (false, regno); ++ ++ if ((indirect_thunks_bnd_used & (1 << regno))) ++ output_indirect_thunk_function (true, regno); ++ + if (!(pic_labels_used & (1 << regno))) + continue; + +@@ -12378,8 +12654,8 @@ ix86_can_eliminate (const int from, const int to) + HOST_WIDE_INT + ix86_initial_elimination_offset (int from, int to) + { +- struct ix86_frame frame; +- ix86_compute_frame_layout (&frame); ++ ix86_compute_frame_layout (); ++ struct ix86_frame &frame = cfun->machine->frame; + + if (from == ARG_POINTER_REGNUM && to == HARD_FRAME_POINTER_REGNUM) + return frame.hard_frame_pointer_offset; +@@ -12418,8 +12694,9 @@ ix86_builtin_setjmp_frame_value (void) + /* Fill structure ix86_frame about frame of currently computed function. */ + + static void +-ix86_compute_frame_layout (struct ix86_frame *frame) ++ix86_compute_frame_layout (void) + { ++ struct ix86_frame *frame = &cfun->machine->frame; + unsigned HOST_WIDE_INT stack_alignment_needed; + HOST_WIDE_INT offset; + unsigned HOST_WIDE_INT preferred_alignment; +@@ -13703,7 +13980,6 @@ ix86_expand_prologue (void) + { + struct machine_function *m = cfun->machine; + rtx insn, t; +- struct ix86_frame frame; + HOST_WIDE_INT allocate; + bool int_registers_saved; + bool sse_registers_saved; +@@ -13726,7 +14002,8 @@ ix86_expand_prologue (void) + m->fs.sp_offset = INCOMING_FRAME_SP_OFFSET; + m->fs.sp_valid = true; + +- ix86_compute_frame_layout (&frame); ++ ix86_compute_frame_layout (); ++ struct ix86_frame &frame = cfun->machine->frame; + + if (!TARGET_64BIT && ix86_function_ms_hook_prologue (current_function_decl)) + { +@@ -14389,12 +14666,12 @@ ix86_expand_epilogue (int style) + { + struct machine_function *m = cfun->machine; + struct machine_frame_state frame_state_save = m->fs; +- struct ix86_frame frame; + bool restore_regs_via_mov; + bool using_drap; + + ix86_finalize_stack_realign_flags (); +- ix86_compute_frame_layout (&frame); ++ ix86_compute_frame_layout (); ++ struct ix86_frame &frame = cfun->machine->frame; + + m->fs.sp_valid = (!frame_pointer_needed + || (crtl->sp_is_unchanging +@@ -14892,7 +15169,6 @@ static GTY(()) rtx split_stack_fn_large; + void + ix86_expand_split_stack_prologue (void) + { +- struct ix86_frame frame; + HOST_WIDE_INT allocate; + unsigned HOST_WIDE_INT args_size; + rtx_code_label *label; +@@ -14904,7 +15180,8 @@ ix86_expand_split_stack_prologue (void) + gcc_assert (flag_split_stack && reload_completed); + + ix86_finalize_stack_realign_flags (); +- ix86_compute_frame_layout (&frame); ++ ix86_compute_frame_layout (); ++ struct ix86_frame &frame = cfun->machine->frame; + allocate = frame.stack_pointer_offset - INCOMING_FRAME_SP_OFFSET; + + /* This is the label we will branch to if we have enough stack +@@ -17609,6 +17886,7 @@ put_condition_code (enum rtx_code code, machine_mode mode, bool reverse, + If CODE is 'h', pretend the reg is the 'high' byte register. + If CODE is 'y', print "st(0)" instead of "st", if the reg is stack op. + If CODE is 'd', duplicate the operand for AVX instruction. ++ If CODE is 'V', print naked register name without %. + */ + + void +@@ -17619,7 +17897,7 @@ print_reg (rtx x, int code, FILE *file) + unsigned int regno; + bool duplicated; + +- if (ASSEMBLER_DIALECT == ASM_ATT) ++ if (ASSEMBLER_DIALECT == ASM_ATT && code != 'V') + putc ('%', file); + + if (x == pc_rtx) +@@ -17786,6 +18064,7 @@ print_reg (rtx x, int code, FILE *file) + & -- print some in-use local-dynamic symbol name. + H -- print a memory address offset by 8; used for sse high-parts + Y -- print condition for XOP pcom* instruction. ++ V -- print naked register name without %. + + -- print a branch hint as 'cs' or 'ds' prefix + ; -- print a semicolon (after prefixes due to bug in older gas). + ~ -- print "i" if TARGET_AVX2, "f" otherwise. +@@ -18010,6 +18289,7 @@ ix86_print_operand (FILE *file, rtx x, int code) + case 'X': + case 'P': + case 'p': ++ case 'V': + break; + + case 's': +@@ -28499,12 +28779,219 @@ ix86_nopic_noplt_attribute_p (rtx call_op) + return false; + } + ++static void ++ix86_output_indirect_branch (rtx call_op, const char *xasm, ++ bool sibcall_p) ++{ ++ char thunk_name_buf[32]; ++ char *thunk_name; ++ char push_buf[64]; ++ bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn); ++ int regno; ++ ++ if (REG_P (call_op)) ++ regno = REGNO (call_op); ++ else ++ regno = -1; ++ ++ if (cfun->machine->indirect_branch_type ++ != indirect_branch_thunk_inline) ++ { ++ if (cfun->machine->indirect_branch_type == indirect_branch_thunk) ++ { ++ if (regno >= 0) ++ { ++ int i = regno; ++ if (i >= FIRST_REX_INT_REG) ++ i -= (FIRST_REX_INT_REG - LAST_INT_REG - 1); ++ if (need_bnd_p) ++ indirect_thunks_bnd_used |= 1 << i; ++ else ++ indirect_thunks_used |= 1 << i; ++ } ++ else ++ { ++ if (need_bnd_p) ++ indirect_thunk_bnd_needed = true; ++ else ++ indirect_thunk_needed = true; ++ } ++ } ++ indirect_thunk_name (thunk_name_buf, regno, need_bnd_p, false); ++ thunk_name = thunk_name_buf; ++ } ++ else ++ thunk_name = NULL; ++ ++ snprintf (push_buf, sizeof (push_buf), "push{%c}\t%s", ++ TARGET_64BIT ? 'q' : 'l', xasm); ++ ++ if (sibcall_p) ++ { ++ if (regno < 0) ++ output_asm_insn (push_buf, &call_op); ++ if (thunk_name != NULL) ++ { ++ if (need_bnd_p) ++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name); ++ else ++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name); ++ } ++ else ++ output_indirect_thunk (need_bnd_p, regno); ++ } ++ else ++ { ++ if (regno >= 0 && thunk_name != NULL) ++ { ++ if (need_bnd_p) ++ fprintf (asm_out_file, "\tbnd call\t%s\n", thunk_name); ++ else ++ fprintf (asm_out_file, "\tcall\t%s\n", thunk_name); ++ return; ++ } ++ ++ char indirectlabel1[32]; ++ char indirectlabel2[32]; ++ ++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel1, ++ INDIRECT_LABEL, ++ indirectlabelno++); ++ ASM_GENERATE_INTERNAL_LABEL (indirectlabel2, ++ INDIRECT_LABEL, ++ indirectlabelno++); ++ ++ /* Jump. */ ++ if (need_bnd_p) ++ fputs ("\tbnd jmp\t", asm_out_file); ++ else ++ fputs ("\tjmp\t", asm_out_file); ++ assemble_name_raw (asm_out_file, indirectlabel2); ++ fputc ('\n', asm_out_file); ++ ++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel1); ++ ++ if (MEM_P (call_op)) ++ { ++ struct ix86_address parts; ++ rtx addr = XEXP (call_op, 0); ++ if (ix86_decompose_address (addr, &parts) ++ && parts.base == stack_pointer_rtx) ++ { ++ /* Since call will adjust stack by -UNITS_PER_WORD, ++ we must convert "disp(stack, index, scale)" to ++ "disp+UNITS_PER_WORD(stack, index, scale)". */ ++ if (parts.index) ++ { ++ addr = gen_rtx_MULT (Pmode, parts.index, ++ GEN_INT (parts.scale)); ++ addr = gen_rtx_PLUS (Pmode, stack_pointer_rtx, ++ addr); ++ } ++ else ++ addr = stack_pointer_rtx; ++ ++ rtx disp; ++ if (parts.disp != NULL_RTX) ++ disp = plus_constant (Pmode, parts.disp, ++ UNITS_PER_WORD); ++ else ++ disp = GEN_INT (UNITS_PER_WORD); ++ ++ addr = gen_rtx_PLUS (Pmode, addr, disp); ++ call_op = gen_rtx_MEM (GET_MODE (call_op), addr); ++ } ++ } ++ ++ if (regno < 0) ++ output_asm_insn (push_buf, &call_op); ++ ++ if (thunk_name != NULL) ++ { ++ if (need_bnd_p) ++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name); ++ else ++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name); ++ } ++ else ++ output_indirect_thunk (need_bnd_p, regno); ++ ++ ASM_OUTPUT_INTERNAL_LABEL (asm_out_file, indirectlabel2); ++ ++ /* Call. */ ++ if (need_bnd_p) ++ fputs ("\tbnd call\t", asm_out_file); ++ else ++ fputs ("\tcall\t", asm_out_file); ++ assemble_name_raw (asm_out_file, indirectlabel1); ++ fputc ('\n', asm_out_file); ++ } ++} ++ ++const char * ++ix86_output_indirect_jmp (rtx call_op, bool ret_p) ++{ ++ if (cfun->machine->indirect_branch_type != indirect_branch_keep) ++ { ++ /* We can't have red-zone if this isn't a function return since ++ "call" in the indirect thunk pushes the return address onto ++ stack, destroying red-zone. */ ++ if (!ret_p && ix86_red_zone_size != 0) ++ gcc_unreachable (); ++ ++ ix86_output_indirect_branch (call_op, "%0", true); ++ return ""; ++ } ++ else ++ return "%!jmp\t%A0"; ++} ++ ++const char * ++ix86_output_function_return (bool long_p) ++{ ++ if (cfun->machine->function_return_type != indirect_branch_keep) ++ { ++ char thunk_name[32]; ++ bool need_bnd_p = ix86_bnd_prefixed_insn_p (current_output_insn); ++ ++ if (cfun->machine->function_return_type ++ != indirect_branch_thunk_inline) ++ { ++ bool need_thunk = (cfun->machine->function_return_type ++ == indirect_branch_thunk); ++ indirect_thunk_name (thunk_name, -1, need_bnd_p, true); ++ if (need_bnd_p) ++ { ++ indirect_thunk_bnd_needed |= need_thunk; ++ fprintf (asm_out_file, "\tbnd jmp\t%s\n", thunk_name); ++ } ++ else ++ { ++ indirect_thunk_needed |= need_thunk; ++ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name); ++ } ++ } ++ else ++ output_indirect_thunk (need_bnd_p, -1); ++ ++ return ""; ++ } ++ ++ if (!long_p || ix86_bnd_prefixed_insn_p (current_output_insn)) ++ return "%!ret"; ++ ++ return "rep%; ret"; ++} ++ + /* Output the assembly for a call instruction. */ + + const char * + ix86_output_call_insn (rtx_insn *insn, rtx call_op) + { + bool direct_p = constant_call_address_operand (call_op, VOIDmode); ++ bool output_indirect_p ++ = (!TARGET_SEH ++ && cfun->machine->indirect_branch_type != indirect_branch_keep); + bool seh_nop_p = false; + const char *xasm; + +@@ -28514,10 +29001,21 @@ ix86_output_call_insn (rtx_insn *insn, rtx call_op) + { + if (ix86_nopic_noplt_attribute_p (call_op)) + { ++ direct_p = false; + if (TARGET_64BIT) +- xasm = "%!jmp\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}"; ++ { ++ if (output_indirect_p) ++ xasm = "{%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}"; ++ else ++ xasm = "%!jmp\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}"; ++ } + else +- xasm = "%!jmp\t{*%p0@GOT|[DWORD PTR %p0@GOT]}"; ++ { ++ if (output_indirect_p) ++ xasm = "{%p0@GOT|[DWORD PTR %p0@GOT]}"; ++ else ++ xasm = "%!jmp\t{*%p0@GOT|[DWORD PTR %p0@GOT]}"; ++ } + } + else + xasm = "%!jmp\t%P0"; +@@ -28527,9 +29025,17 @@ ix86_output_call_insn (rtx_insn *insn, rtx call_op) + else if (TARGET_SEH) + xasm = "%!rex.W jmp\t%A0"; + else +- xasm = "%!jmp\t%A0"; ++ { ++ if (output_indirect_p) ++ xasm = "%0"; ++ else ++ xasm = "%!jmp\t%A0"; ++ } + +- output_asm_insn (xasm, &call_op); ++ if (output_indirect_p && !direct_p) ++ ix86_output_indirect_branch (call_op, xasm, true); ++ else ++ output_asm_insn (xasm, &call_op); + return ""; + } + +@@ -28567,18 +29073,37 @@ ix86_output_call_insn (rtx_insn *insn, rtx call_op) + { + if (ix86_nopic_noplt_attribute_p (call_op)) + { ++ direct_p = false; + if (TARGET_64BIT) +- xasm = "%!call\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}"; ++ { ++ if (output_indirect_p) ++ xasm = "{%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}"; ++ else ++ xasm = "%!call\t{*%p0@GOTPCREL(%%rip)|[QWORD PTR %p0@GOTPCREL[rip]]}"; ++ } + else +- xasm = "%!call\t{*%p0@GOT|[DWORD PTR %p0@GOT]}"; ++ { ++ if (output_indirect_p) ++ xasm = "{%p0@GOT|[DWORD PTR %p0@GOT]}"; ++ else ++ xasm = "%!call\t{*%p0@GOT|[DWORD PTR %p0@GOT]}"; ++ } + } + else + xasm = "%!call\t%P0"; + } + else +- xasm = "%!call\t%A0"; ++ { ++ if (output_indirect_p) ++ xasm = "%0"; ++ else ++ xasm = "%!call\t%A0"; ++ } + +- output_asm_insn (xasm, &call_op); ++ if (output_indirect_p && !direct_p) ++ ix86_output_indirect_branch (call_op, xasm, false); ++ else ++ output_asm_insn (xasm, &call_op); + + if (seh_nop_p) + return "nop"; +@@ -41482,7 +42007,7 @@ ix86_handle_struct_attribute (tree *node, tree name, tree, int, + } + + static tree +-ix86_handle_fndecl_attribute (tree *node, tree name, tree, int, ++ix86_handle_fndecl_attribute (tree *node, tree name, tree args, int, + bool *no_add_attrs) + { + if (TREE_CODE (*node) != FUNCTION_DECL) +@@ -41491,6 +42016,51 @@ ix86_handle_fndecl_attribute (tree *node, tree name, tree, int, + name); + *no_add_attrs = true; + } ++ ++ if (is_attribute_p ("indirect_branch", name)) ++ { ++ tree cst = TREE_VALUE (args); ++ if (TREE_CODE (cst) != STRING_CST) ++ { ++ warning (OPT_Wattributes, ++ "%qE attribute requires a string constant argument", ++ name); ++ *no_add_attrs = true; ++ } ++ else if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0 ++ && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0 ++ && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0 ++ && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0) ++ { ++ warning (OPT_Wattributes, ++ "argument to %qE attribute is not " ++ "(keep|thunk|thunk-inline|thunk-extern)", name); ++ *no_add_attrs = true; ++ } ++ } ++ ++ if (is_attribute_p ("function_return", name)) ++ { ++ tree cst = TREE_VALUE (args); ++ if (TREE_CODE (cst) != STRING_CST) ++ { ++ warning (OPT_Wattributes, ++ "%qE attribute requires a string constant argument", ++ name); ++ *no_add_attrs = true; ++ } ++ else if (strcmp (TREE_STRING_POINTER (cst), "keep") != 0 ++ && strcmp (TREE_STRING_POINTER (cst), "thunk") != 0 ++ && strcmp (TREE_STRING_POINTER (cst), "thunk-inline") != 0 ++ && strcmp (TREE_STRING_POINTER (cst), "thunk-extern") != 0) ++ { ++ warning (OPT_Wattributes, ++ "argument to %qE attribute is not " ++ "(keep|thunk|thunk-inline|thunk-extern)", name); ++ *no_add_attrs = true; ++ } ++ } ++ + return NULL_TREE; + } + +@@ -45785,6 +46355,10 @@ static const struct attribute_spec ix86_attribute_table[] = + ix86_handle_interrupt_attribute, false }, + { "no_caller_saved_registers", 0, 0, false, true, true, + ix86_handle_no_caller_saved_registers_attribute, false }, ++ { "indirect_branch", 1, 1, true, false, false, ++ ix86_handle_fndecl_attribute, false }, ++ { "function_return", 1, 1, true, false, false, ++ ix86_handle_fndecl_attribute, false }, + + /* End element. */ + { NULL, 0, 0, false, false, false, NULL, false } +diff --git a/gcc/config/i386/i386.h b/gcc/config/i386/i386.h +index 9e5f4d857d9..5f30d3f8d19 100644 +--- a/gcc/config/i386/i386.h ++++ b/gcc/config/i386/i386.h +@@ -2446,9 +2446,56 @@ enum avx_u128_state + + #define FASTCALL_PREFIX '@' + ++#ifndef USED_FOR_TARGET ++/* Structure describing stack frame layout. ++ Stack grows downward: ++ ++ [arguments] ++ <- ARG_POINTER ++ saved pc ++ ++ saved static chain if ix86_static_chain_on_stack ++ ++ saved frame pointer if frame_pointer_needed ++ <- HARD_FRAME_POINTER ++ [saved regs] ++ <- regs_save_offset ++ [padding0] ++ ++ [saved SSE regs] ++ <- sse_regs_save_offset ++ [padding1] | ++ | <- FRAME_POINTER ++ [va_arg registers] | ++ | ++ [frame] | ++ | ++ [padding2] | = to_allocate ++ <- STACK_POINTER ++ */ ++struct GTY(()) ix86_frame ++{ ++ int nsseregs; ++ int nregs; ++ int va_arg_size; ++ int red_zone_size; ++ int outgoing_arguments_size; ++ ++ /* The offsets relative to ARG_POINTER. */ ++ HOST_WIDE_INT frame_pointer_offset; ++ HOST_WIDE_INT hard_frame_pointer_offset; ++ HOST_WIDE_INT stack_pointer_offset; ++ HOST_WIDE_INT hfp_save_offset; ++ HOST_WIDE_INT reg_save_offset; ++ HOST_WIDE_INT sse_reg_save_offset; ++ ++ /* When save_regs_using_mov is set, emit prologue using ++ move instead of push instructions. */ ++ bool save_regs_using_mov; ++}; ++ + /* Machine specific frame tracking during prologue/epilogue generation. */ + +-#ifndef USED_FOR_TARGET + struct GTY(()) machine_frame_state + { + /* This pair tracks the currently active CFA as reg+offset. When reg +@@ -2507,6 +2554,9 @@ struct GTY(()) machine_function { + int varargs_fpr_size; + int optimize_mode_switching[MAX_386_ENTITIES]; + ++ /* Cached initial frame layout for the current function. */ ++ struct ix86_frame frame; ++ + /* Number of saved registers USE_FAST_PROLOGUE_EPILOGUE + has been computed for. */ + int use_fast_prologue_epilogue_nregs; +@@ -2554,6 +2604,16 @@ struct GTY(()) machine_function { + /* Function type. */ + ENUM_BITFIELD(function_type) func_type : 2; + ++ /* How to generate indirec branch. */ ++ ENUM_BITFIELD(indirect_branch) indirect_branch_type : 3; ++ ++ /* If true, the current function has local indirect jumps, like ++ "indirect_jump" or "tablejump". */ ++ BOOL_BITFIELD has_local_indirect_jump : 1; ++ ++ /* How to generate function return. */ ++ ENUM_BITFIELD(indirect_branch) function_return_type : 3; ++ + /* If true, the current function is a function specified with + the "interrupt" or "no_caller_saved_registers" attribute. */ + BOOL_BITFIELD no_caller_saved_registers : 1; +@@ -2589,6 +2649,7 @@ struct GTY(()) machine_function { + #define ix86_current_function_calls_tls_descriptor \ + (ix86_tls_descriptor_calls_expanded_in_cfun && df_regs_ever_live_p (SP_REG)) + #define ix86_static_chain_on_stack (cfun->machine->static_chain_on_stack) ++#define ix86_red_zone_size (cfun->machine->frame.red_zone_size) + + /* Control behavior of x86_file_start. */ + #define X86_FILE_START_VERSION_DIRECTIVE false +diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md +index 81cfba57afc..ea95aad7540 100644 +--- a/gcc/config/i386/i386.md ++++ b/gcc/config/i386/i386.md +@@ -11608,14 +11608,15 @@ + [(set (pc) (match_operand 0 "indirect_branch_operand"))] + "" + { +- if (TARGET_X32) ++ if (TARGET_X32 || ix86_indirect_branch_thunk_register) + operands[0] = convert_memory_address (word_mode, operands[0]); ++ cfun->machine->has_local_indirect_jump = true; + }) + + (define_insn "*indirect_jump" + [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw"))] + "" +- "%!jmp\t%A0" ++ "* return ix86_output_indirect_jmp (operands[0], false);" + [(set_attr "type" "ibr") + (set_attr "length_immediate" "0") + (set_attr "maybe_prefix_bnd" "1")]) +@@ -11657,15 +11658,16 @@ + OPTAB_DIRECT); + } + +- if (TARGET_X32) ++ if (TARGET_X32 || ix86_indirect_branch_thunk_register) + operands[0] = convert_memory_address (word_mode, operands[0]); ++ cfun->machine->has_local_indirect_jump = true; + }) + + (define_insn "*tablejump_1" + [(set (pc) (match_operand:W 0 "indirect_branch_operand" "rBw")) + (use (label_ref (match_operand 1)))] + "" +- "%!jmp\t%A0" ++ "* return ix86_output_indirect_jmp (operands[0], false);" + [(set_attr "type" "ibr") + (set_attr "length_immediate" "0") + (set_attr "maybe_prefix_bnd" "1")]) +@@ -11844,7 +11846,7 @@ + [(call (mem:QI (match_operand:W 0 "memory_operand" "m")) + (match_operand 1)) + (unspec [(const_int 0)] UNSPEC_PEEPSIB)] +- "!TARGET_X32" ++ "!TARGET_X32 && !ix86_indirect_branch_thunk_register" + "* return ix86_output_call_insn (insn, operands[0]);" + [(set_attr "type" "call")]) + +@@ -11853,7 +11855,9 @@ + (match_operand:W 1 "memory_operand")) + (call (mem:QI (match_dup 0)) + (match_operand 3))] +- "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (1)) ++ "!TARGET_X32 ++ && !ix86_indirect_branch_thunk_register ++ && SIBLING_CALL_P (peep2_next_insn (1)) + && !reg_mentioned_p (operands[0], + CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))" + [(parallel [(call (mem:QI (match_dup 1)) +@@ -11866,7 +11870,9 @@ + (unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE) + (call (mem:QI (match_dup 0)) + (match_operand 3))] +- "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (2)) ++ "!TARGET_X32 ++ && !ix86_indirect_branch_thunk_register ++ && SIBLING_CALL_P (peep2_next_insn (2)) + && !reg_mentioned_p (operands[0], + CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))" + [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE) +@@ -11888,7 +11894,7 @@ + }) + + (define_insn "*call_pop" +- [(call (mem:QI (match_operand:SI 0 "call_insn_operand" "lmBz")) ++ [(call (mem:QI (match_operand:SI 0 "call_insn_operand" "lBwBz")) + (match_operand 1)) + (set (reg:SI SP_REG) + (plus:SI (reg:SI SP_REG) +@@ -11908,7 +11914,7 @@ + [(set_attr "type" "call")]) + + (define_insn "*sibcall_pop_memory" +- [(call (mem:QI (match_operand:SI 0 "memory_operand" "m")) ++ [(call (mem:QI (match_operand:SI 0 "memory_operand" "Bs")) + (match_operand 1)) + (set (reg:SI SP_REG) + (plus:SI (reg:SI SP_REG) +@@ -11962,7 +11968,9 @@ + [(set (match_operand:W 0 "register_operand") + (match_operand:W 1 "memory_operand")) + (set (pc) (match_dup 0))] +- "!TARGET_X32 && peep2_reg_dead_p (2, operands[0])" ++ "!TARGET_X32 ++ && !ix86_indirect_branch_thunk_register ++ && peep2_reg_dead_p (2, operands[0])" + [(set (pc) (match_dup 1))]) + + ;; Call subroutine, returning value in operand 0 +@@ -12043,7 +12051,7 @@ + (call (mem:QI (match_operand:W 1 "memory_operand" "m")) + (match_operand 2))) + (unspec [(const_int 0)] UNSPEC_PEEPSIB)] +- "!TARGET_X32" ++ "!TARGET_X32 && !ix86_indirect_branch_thunk_register" + "* return ix86_output_call_insn (insn, operands[1]);" + [(set_attr "type" "callv")]) + +@@ -12053,7 +12061,9 @@ + (set (match_operand 2) + (call (mem:QI (match_dup 0)) + (match_operand 3)))] +- "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (1)) ++ "!TARGET_X32 ++ && !ix86_indirect_branch_thunk_register ++ && SIBLING_CALL_P (peep2_next_insn (1)) + && !reg_mentioned_p (operands[0], + CALL_INSN_FUNCTION_USAGE (peep2_next_insn (1)))" + [(parallel [(set (match_dup 2) +@@ -12068,7 +12078,9 @@ + (set (match_operand 2) + (call (mem:QI (match_dup 0)) + (match_operand 3)))] +- "!TARGET_X32 && SIBLING_CALL_P (peep2_next_insn (2)) ++ "!TARGET_X32 ++ && !ix86_indirect_branch_thunk_register ++ && SIBLING_CALL_P (peep2_next_insn (2)) + && !reg_mentioned_p (operands[0], + CALL_INSN_FUNCTION_USAGE (peep2_next_insn (2)))" + [(unspec_volatile [(const_int 0)] UNSPECV_BLOCKAGE) +@@ -12093,7 +12105,7 @@ + + (define_insn "*call_value_pop" + [(set (match_operand 0) +- (call (mem:QI (match_operand:SI 1 "call_insn_operand" "lmBz")) ++ (call (mem:QI (match_operand:SI 1 "call_insn_operand" "lBwBz")) + (match_operand 2))) + (set (reg:SI SP_REG) + (plus:SI (reg:SI SP_REG) +@@ -12288,7 +12300,7 @@ + (define_insn "simple_return_internal" + [(simple_return)] + "reload_completed" +- "%!ret" ++ "* return ix86_output_function_return (false);" + [(set_attr "length" "1") + (set_attr "atom_unit" "jeu") + (set_attr "length_immediate" "0") +@@ -12310,12 +12322,7 @@ + [(simple_return) + (unspec [(const_int 0)] UNSPEC_REP)] + "reload_completed" +-{ +- if (ix86_bnd_prefixed_insn_p (insn)) +- return "%!ret"; +- +- return "rep%; ret"; +-} ++ "* return ix86_output_function_return (true);" + [(set_attr "length" "2") + (set_attr "atom_unit" "jeu") + (set_attr "length_immediate" "0") +@@ -12337,7 +12344,7 @@ + [(simple_return) + (use (match_operand:SI 0 "register_operand" "r"))] + "reload_completed" +- "%!jmp\t%A0" ++ "* return ix86_output_indirect_jmp (operands[0], true);" + [(set_attr "type" "ibr") + (set_attr "length_immediate" "0") + (set_attr "maybe_prefix_bnd" "1")]) +diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt +index 9384e29b1de..802245f4efe 100644 +--- a/gcc/config/i386/i386.opt ++++ b/gcc/config/i386/i386.opt +@@ -927,3 +927,47 @@ Attempt to avoid generating instruction sequences containing ret bytes. + mgeneral-regs-only + Target Report RejectNegative Mask(GENERAL_REGS_ONLY) Var(ix86_target_flags) Save + Generate code which uses only the general registers. ++ ++mindirect-branch= ++Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_indirect_branch) Init(indirect_branch_keep) ++Update indirect call and jump. ++ ++mfunction-return= ++Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_function_return) Init(indirect_branch_keep) ++Update function return. ++ ++Enum ++Name(indirect_branch) Type(enum indirect_branch) ++Known indirect branch choices (for use with the -mindirect-branch=/-mfunction-return= options): ++ ++EnumValue ++Enum(indirect_branch) String(keep) Value(indirect_branch_keep) ++ ++EnumValue ++Enum(indirect_branch) String(thunk) Value(indirect_branch_thunk) ++ ++EnumValue ++Enum(indirect_branch) String(thunk-inline) Value(indirect_branch_thunk_inline) ++ ++EnumValue ++Enum(indirect_branch) String(thunk-extern) Value(indirect_branch_thunk_extern) ++ ++mindirect-branch-register ++Target Report Var(ix86_indirect_branch_thunk_register) Init(0) ++Force indirect call and jump via register. ++ ++mindirect-branch-loop= ++Target Report RejectNegative Joined Enum(indirect_branch_loop) Var(ix86_indirect_branch_loop) Undocumented Init(indirect_branch_loop_lfence) ++ ++Enum ++Name(indirect_branch_loop) Type(enum indirect_branch_loop) ++Known looop choices (for use with the -mindirect-branch-loop= option): ++ ++EnumValue ++Enum(indirect_branch_loop) String(lfence) Value(indirect_branch_loop_lfence) ++ ++EnumValue ++Enum(indirect_branch_loop) String(pause) Value(indirect_branch_loop_pause) ++ ++EnumValue ++Enum(indirect_branch_loop) String(nop) Value(indirect_branch_loop_nop) +diff --git a/gcc/config/i386/predicates.md b/gcc/config/i386/predicates.md +index 8f250a2e720..fc4933e4533 100644 +--- a/gcc/config/i386/predicates.md ++++ b/gcc/config/i386/predicates.md +@@ -635,7 +635,8 @@ + ;; Test for a valid operand for indirect branch. + (define_predicate "indirect_branch_operand" + (ior (match_operand 0 "register_operand") +- (and (not (match_test "TARGET_X32")) ++ (and (not (match_test "TARGET_X32 ++ || ix86_indirect_branch_thunk_register")) + (match_operand 0 "memory_operand")))) + + ;; Return true if OP is a memory operands that can be used in sibcalls. +@@ -664,7 +665,8 @@ + + ;; Return true if OP is a GOT memory operand. + (define_predicate "GOT_memory_operand" +- (match_operand 0 "memory_operand") ++ (and (match_test "!ix86_indirect_branch_thunk_register") ++ (match_operand 0 "memory_operand")) + { + op = XEXP (op, 0); + return (GET_CODE (op) == CONST +@@ -678,9 +680,11 @@ + (ior (match_test "constant_call_address_operand + (op, mode == VOIDmode ? mode : Pmode)") + (match_operand 0 "call_register_no_elim_operand") +- (ior (and (not (match_test "TARGET_X32")) ++ (ior (and (not (match_test "TARGET_X32 ++ || ix86_indirect_branch_thunk_register")) + (match_operand 0 "memory_operand")) +- (and (match_test "TARGET_X32 && Pmode == DImode") ++ (and (match_test "TARGET_X32 && Pmode == DImode ++ && !ix86_indirect_branch_thunk_register") + (match_operand 0 "GOT_memory_operand"))))) + + ;; Similarly, but for tail calls, in which we cannot allow memory references. +@@ -688,14 +692,17 @@ + (ior (match_test "constant_call_address_operand + (op, mode == VOIDmode ? mode : Pmode)") + (match_operand 0 "register_no_elim_operand") +- (ior (and (not (match_test "TARGET_X32")) ++ (ior (and (not (match_test "TARGET_X32 ++ || ix86_indirect_branch_thunk_register")) + (match_operand 0 "sibcall_memory_operand")) +- (and (match_test "TARGET_X32 && Pmode == DImode") ++ (and (match_test "TARGET_X32 && Pmode == DImode ++ && !ix86_indirect_branch_thunk_register") + (match_operand 0 "GOT_memory_operand"))))) + + ;; Return true if OP is a 32-bit GOT symbol operand. + (define_predicate "GOT32_symbol_operand" +- (match_test "GET_CODE (op) == CONST ++ (match_test "!ix86_indirect_branch_thunk_register ++ && GET_CODE (op) == CONST + && GET_CODE (XEXP (op, 0)) == UNSPEC + && XINT (XEXP (op, 0), 1) == UNSPEC_GOT")) + +diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi +index a0fb09eb9e1..fafda2926bd 100644 +--- a/gcc/doc/invoke.texi ++++ b/gcc/doc/invoke.texi +@@ -1210,7 +1210,7 @@ See RS/6000 and PowerPC Options. + -msse2avx -mfentry -mrecord-mcount -mnop-mcount -m8bit-idiv @gol + -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol + -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol +--mmitigate-rop -mgeneral-regs-only} ++-mmitigate-rop -mgeneral-regs-only -mindirect-branch=@var{choice}} + + @emph{x86 Windows Options} + @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol +@@ -25648,6 +25648,13 @@ Generate code that uses only the general-purpose registers. This + prevents the compiler from using floating-point, vector, mask and bound + registers. + ++@item -mindirect-branch=@var{choice} ++@opindex -mindirect-branch ++Update indirect call and jump with @var{choice}. The default is ++@samp{keep}, which keeps indirect call and jump unmodified. ++@samp{thunk} converts indirect call and jump to push and ++PC-relative call thunk. ++ + @end table + + These @samp{-m} switches are supported in addition to the above +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c +new file mode 100644 +index 00000000000..b0625207b92 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c +new file mode 100644 +index 00000000000..0b289685e6b +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c +new file mode 100644 +index 00000000000..79a9f76285f +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c +new file mode 100644 +index 00000000000..901d94213bd +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c +new file mode 100644 +index 00000000000..d2c9bd9d7ca +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c +@@ -0,0 +1,16 @@ ++/* { dg-do compile { target *-*-linux* } } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */ ++ ++extern void bar (void); ++ ++void ++foo (void) ++{ ++ bar (); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c +new file mode 100644 +index 00000000000..f8b028db7a2 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c +@@ -0,0 +1,17 @@ ++/* { dg-do compile { target *-*-linux* } } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */ ++ ++extern void bar (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c +new file mode 100644 +index 00000000000..465775407ec +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c +@@ -0,0 +1,43 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++ ++void func0 (void); ++void func1 (void); ++void func2 (void); ++void func3 (void); ++void func4 (void); ++void func4 (void); ++void func5 (void); ++ ++void ++bar (int i) ++{ ++ switch (i) ++ { ++ default: ++ func0 (); ++ break; ++ case 1: ++ func1 (); ++ break; ++ case 2: ++ func2 (); ++ break; ++ case 3: ++ func3 (); ++ break; ++ case 4: ++ func4 (); ++ break; ++ case 5: ++ func5 (); ++ break; ++ } ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c +new file mode 100644 +index 00000000000..5309d5a3eaa +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c +@@ -0,0 +1,22 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++extern void male_indirect_jump (long) ++ __attribute__ ((indirect_branch("thunk"))); ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c +new file mode 100644 +index 00000000000..dd1efca49fd +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++__attribute__ ((indirect_branch("thunk"))) ++void ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c +new file mode 100644 +index 00000000000..e97ca636020 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++extern int male_indirect_jump (long) ++ __attribute__ ((indirect_branch("thunk-inline"))); ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c +new file mode 100644 +index 00000000000..b547cbbf255 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++__attribute__ ((indirect_branch("thunk-inline"))) ++int ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c +new file mode 100644 +index 00000000000..353689dc415 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c +@@ -0,0 +1,22 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++extern int male_indirect_jump (long) ++ __attribute__ ((indirect_branch("thunk-extern"))); ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c +new file mode 100644 +index 00000000000..1edef7208f4 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++__attribute__ ((indirect_branch("thunk-extern"))) ++int ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c +new file mode 100644 +index 00000000000..c2e816cdfc6 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c +@@ -0,0 +1,44 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fno-pic" } */ ++ ++void func0 (void); ++void func1 (void); ++void func2 (void); ++void func3 (void); ++void func4 (void); ++void func4 (void); ++void func5 (void); ++ ++__attribute__ ((indirect_branch("thunk-extern"))) ++void ++bar (int i) ++{ ++ switch (i) ++ { ++ default: ++ func0 (); ++ break; ++ case 1: ++ func1 (); ++ break; ++ case 2: ++ func2 (); ++ break; ++ case 3: ++ func3 (); ++ break; ++ case 4: ++ func4 (); ++ break; ++ case 5: ++ func5 (); ++ break; ++ } ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c +new file mode 100644 +index 00000000000..af1bb125a22 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c +@@ -0,0 +1,41 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++ ++void func0 (void); ++void func1 (void); ++void func2 (void); ++void func3 (void); ++void func4 (void); ++void func4 (void); ++void func5 (void); ++ ++__attribute__ ((indirect_branch("keep"))) ++void ++bar (int i) ++{ ++ switch (i) ++ { ++ default: ++ func0 (); ++ break; ++ case 1: ++ func1 (); ++ break; ++ case 2: ++ func2 (); ++ break; ++ case 3: ++ func3 (); ++ break; ++ case 4: ++ func4 (); ++ break; ++ case 5: ++ func5 (); ++ break; ++ } ++} ++ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c +new file mode 100644 +index 00000000000..5c10de47b7c +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile { target { ! x32 } } } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ ++ ++void (*dispatch) (char *); ++char buf[10]; ++ ++void ++foo (void) ++{ ++ dispatch (buf); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86.indirect_thunk_bnd" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "bnd ret" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c +new file mode 100644 +index 00000000000..9eedd9a5a82 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile { target { ! x32 } } } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ ++ ++void (*dispatch) (char *); ++char buf[10]; ++ ++int ++foo (void) ++{ ++ dispatch (buf); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86.indirect_thunk_bnd" } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "bnd ret" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c +new file mode 100644 +index 00000000000..b2b8587eac7 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c +@@ -0,0 +1,18 @@ ++/* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ ++ ++void bar (char *); ++char buf[10]; ++ ++void ++foo (void) ++{ ++ bar (buf); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86.indirect_thunk_bnd" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "bnd call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "bnd ret" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c +new file mode 100644 +index 00000000000..9459a2417f4 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ ++ ++void bar (char *); ++char buf[10]; ++ ++int ++foo (void) ++{ ++ bar (buf); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler "bnd jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-times "bnd call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler "bnd ret" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c +new file mode 100644 +index 00000000000..b0aa3811e65 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c +new file mode 100644 +index 00000000000..75fabcd988c +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c +new file mode 100644 +index 00000000000..1d9dff2e834 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c +new file mode 100644 +index 00000000000..5b464155e38 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c +new file mode 100644 +index 00000000000..55ce91c73ec +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c +@@ -0,0 +1,16 @@ ++/* { dg-do compile { target *-*-linux* } } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */ ++ ++extern void bar (void); ++ ++void ++foo (void) ++{ ++ bar (); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c +new file mode 100644 +index 00000000000..06180e7bee9 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c +@@ -0,0 +1,17 @@ ++/* { dg-do compile { target *-*-linux* } } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */ ++ ++extern void bar (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 1 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 1 } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c +new file mode 100644 +index 00000000000..790a05cec3e +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c +@@ -0,0 +1,43 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++void func0 (void); ++void func1 (void); ++void func2 (void); ++void func3 (void); ++void func4 (void); ++void func4 (void); ++void func5 (void); ++ ++void ++bar (int i) ++{ ++ switch (i) ++ { ++ default: ++ func0 (); ++ break; ++ case 1: ++ func1 (); ++ break; ++ case 2: ++ func2 (); ++ break; ++ case 3: ++ func3 (); ++ break; ++ case 4: ++ func4 (); ++ break; ++ case 5: ++ func5 (); ++ break; ++ } ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c +new file mode 100644 +index 00000000000..1ce8ca5aff1 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c +@@ -0,0 +1,18 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c +new file mode 100644 +index 00000000000..f6b71e868bd +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c +@@ -0,0 +1,18 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c +new file mode 100644 +index 00000000000..84a09d4d0d6 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c +new file mode 100644 +index 00000000000..cfe3aefa0bf +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++int ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c +new file mode 100644 +index 00000000000..6411454243f +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c +@@ -0,0 +1,15 @@ ++/* { dg-do compile { target *-*-linux* } } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */ ++ ++extern void bar (void); ++ ++void ++foo (void) ++{ ++ bar (); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c +new file mode 100644 +index 00000000000..d4297fe21c4 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c +@@ -0,0 +1,16 @@ ++/* { dg-do compile { target *-*-linux* } } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */ ++ ++extern void bar (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*bar@GOT" } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c +new file mode 100644 +index 00000000000..eb318efdf4d +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c +@@ -0,0 +1,42 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++ ++void func0 (void); ++void func1 (void); ++void func2 (void); ++void func3 (void); ++void func4 (void); ++void func4 (void); ++void func5 (void); ++ ++void ++bar (int i) ++{ ++ switch (i) ++ { ++ default: ++ func0 (); ++ break; ++ case 1: ++ func1 (); ++ break; ++ case 2: ++ func2 (); ++ break; ++ case 3: ++ func3 (); ++ break; ++ case 4: ++ func4 (); ++ break; ++ case 5: ++ func5 (); ++ break; ++ } ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-1.c +new file mode 100644 +index 00000000000..605e32bb584 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-1.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mindirect-branch=thunk -mindirect-branch-loop=pause -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-2.c +new file mode 100644 +index 00000000000..dd7a7b60621 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-2.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mindirect-branch=thunk -mindirect-branch-loop=nop -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch[256]; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch[offset](offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tnop} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-3.c +new file mode 100644 +index 00000000000..338f22c373c +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-3.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mindirect-branch=thunk -mindirect-branch-loop=lfence -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-4.c +new file mode 100644 +index 00000000000..3b083ee30a8 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-4.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mindirect-branch=thunk-inline -mindirect-branch-loop=pause -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tpause} } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-5.c +new file mode 100644 +index 00000000000..31a9a81a911 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-loop-5.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mindirect-branch=thunk-extern -mindirect-branch-loop=pause -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause|nop)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c +new file mode 100644 +index 00000000000..ef493a05bbf +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-1.c +@@ -0,0 +1,22 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk -mindirect-branch-register -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "mov\[ \t\](%eax|%rax), \\((%esp|%rsp)\\)" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk\n" } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk_bnd\n" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c +new file mode 100644 +index 00000000000..89fc8e6e6c4 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-2.c +@@ -0,0 +1,20 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-inline -mindirect-branch-register -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "mov\[ \t\](%eax|%rax), \\((%esp|%rsp)\\)" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c +new file mode 100644 +index 00000000000..31af7ac05b8 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-register-3.c +@@ -0,0 +1,19 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mindirect-branch=thunk-extern -mindirect-branch-register -fno-pic" } */ ++ ++typedef void (*dispatch_t)(long offset); ++ ++dispatch_t dispatch; ++ ++void ++male_indirect_jump (long offset) ++{ ++ dispatch(offset); ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk\.(r|e)ax" } } */ ++/* { dg-final { scan-assembler-not "push(?:l|q)\[ \t\]*_?dispatch" } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" } } */ ++/* { dg-final { scan-assembler-not {\t(lfence|pause|nop)} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-1.c b/gcc/testsuite/gcc.target/i386/ret-thunk-1.c +new file mode 100644 +index 00000000000..406956f48e5 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-1.c +@@ -0,0 +1,12 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk" } */ ++ ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-10.c b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c +new file mode 100644 +index 00000000000..74f37ee9a62 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c +@@ -0,0 +1,22 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk-inline -mindirect-branch=thunk -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 2 } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "__x86.indirect_thunk:" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target { x32 } } } } */ ++/* { dg-final { scan-assembler "__x86.indirect_thunk\.(r|e)ax:" { target { x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-11.c b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c +new file mode 100644 +index 00000000000..0a52318e86b +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c +@@ -0,0 +1,22 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk-extern -mindirect-branch=thunk -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "__x86.indirect_thunk:" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target { x32 } } } } */ ++/* { dg-final { scan-assembler "__x86.indirect_thunk\.(r|e)ax:" { target { x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-12.c b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c +new file mode 100644 +index 00000000000..d2f775490ea +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "__x86.indirect_thunk:" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target { x32 } } } } */ ++/* { dg-final { scan-assembler "__x86.indirect_thunk\.(r|e)ax:" { target { x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-13.c b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c +new file mode 100644 +index 00000000000..82d46165f3e +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ ++ ++extern void (*bar) (void); ++extern int foo (void) __attribute__ ((function_return("thunk"))); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 2 } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 3 } } */ ++/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 3 } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target { x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-14.c b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c +new file mode 100644 +index 00000000000..6711eb27fa8 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++__attribute__ ((function_return("thunk-inline"))) ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target { x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-15.c b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c +new file mode 100644 +index 00000000000..37758c33371 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c +@@ -0,0 +1,21 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=keep -mindirect-branch=keep -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++__attribute__ ((function_return("thunk-extern"), indirect_branch("thunk"))) ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 1 } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target x32 } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-16.c b/gcc/testsuite/gcc.target/i386/ret-thunk-16.c +new file mode 100644 +index 00000000000..cf3920563e0 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-16.c +@@ -0,0 +1,18 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk-inline -mindirect-branch=thunk-extern -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++__attribute__ ((function_return("keep"), indirect_branch("keep"))) ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler-not "__x86.indirect_thunk" } } */ ++/* { dg-final { scan-assembler-not "__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler-not {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-2.c b/gcc/testsuite/gcc.target/i386/ret-thunk-2.c +new file mode 100644 +index 00000000000..190947cc2ca +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-2.c +@@ -0,0 +1,12 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk-inline" } */ ++ ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86.return_thunk" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-3.c b/gcc/testsuite/gcc.target/i386/ret-thunk-3.c +new file mode 100644 +index 00000000000..d71de3ac520 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-3.c +@@ -0,0 +1,12 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk-extern" } */ ++ ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler-not {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-4.c b/gcc/testsuite/gcc.target/i386/ret-thunk-4.c +new file mode 100644 +index 00000000000..68c22122f0d +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-4.c +@@ -0,0 +1,12 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep" } */ ++ ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler-not {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-5.c b/gcc/testsuite/gcc.target/i386/ret-thunk-5.c +new file mode 100644 +index 00000000000..28c576e2267 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-5.c +@@ -0,0 +1,14 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep" } */ ++ ++extern void foo (void) __attribute__ ((function_return("thunk"))); ++ ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-6.c b/gcc/testsuite/gcc.target/i386/ret-thunk-6.c +new file mode 100644 +index 00000000000..10ad40b9c26 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-6.c +@@ -0,0 +1,13 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep" } */ ++ ++__attribute__ ((function_return("thunk-inline"))) ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86.return_thunk" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-7.c b/gcc/testsuite/gcc.target/i386/ret-thunk-7.c +new file mode 100644 +index 00000000000..7ac0beaa73e +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-7.c +@@ -0,0 +1,13 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=keep" } */ ++ ++__attribute__ ((function_return("thunk-extern"))) ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler-not {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-8.c b/gcc/testsuite/gcc.target/i386/ret-thunk-8.c +new file mode 100644 +index 00000000000..777ab7c8088 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-8.c +@@ -0,0 +1,14 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mfunction-return=thunk-inline" } */ ++ ++extern void foo (void) __attribute__ ((function_return("keep"))); ++ ++void ++foo (void) ++{ ++} ++ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler-not {\tlfence} } } */ ++/* { dg-final { scan-assembler-not "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler-not "call\[ \t\]*\.LIND" } } */ +diff --git a/gcc/testsuite/gcc.target/i386/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c +new file mode 100644 +index 00000000000..70771ea35d7 +--- /dev/null ++++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c +@@ -0,0 +1,23 @@ ++/* { dg-do compile } */ ++/* { dg-options "-O2 -mno-indirect-branch-register -mno-indirect-branch-register -mfunction-return=thunk -mindirect-branch=thunk -fno-pic" } */ ++ ++extern void (*bar) (void); ++ ++int ++foo (void) ++{ ++ bar (); ++ return 0; ++} ++ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.return_thunk" } } */ ++/* { dg-final { scan-assembler-not "__x86.return_thunk:" } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */ ++/* { dg-final { scan-assembler "__x86.indirect_thunk:" } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 1 { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler "jmp\[ \t\]*__x86.indirect_thunk" { target { ! x32 } } } } */ ++/* { dg-final { scan-assembler-times {\tlfence} 2 { target { x32 } } } } */ ++/* { dg-final { scan-assembler "call\[ \t\]*__x86.indirect_thunk\.(r|e)ax" { target { x32 } } } } */ ++/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */ |