diff options
Diffstat (limited to 'gcc')
56 files changed, 476 insertions, 49 deletions
diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h index bcdd9872db9..42eece35766 100644 --- a/gcc/config/i386/i386-protos.h +++ b/gcc/config/i386/i386-protos.h @@ -314,6 +314,7 @@ extern enum attr_cpu ix86_schedule; 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 cfebc643bf5..b4c02be5020 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -7184,6 +7184,31 @@ ix86_set_indirect_branch_type (tree fndecl) 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 @@ -11976,8 +12001,12 @@ static int indirect_thunks_bnd_used; /* 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) +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" : ""; @@ -11992,7 +12021,10 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p) bnd, reg_prefix, reg_names[regno]); } else - sprintf (name, "__x86_indirect_thunk%s", bnd); + { + const char *ret = ret_p ? "return" : "indirect"; + sprintf (name, "__x86_%s_thunk%s", ret, bnd); + } } else { @@ -12005,10 +12037,20 @@ indirect_thunk_name (char name[32], int regno, bool need_bnd_p) } else { - if (need_bnd_p) - ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0); + if (ret_p) + { + if (need_bnd_p) + ASM_GENERATE_INTERNAL_LABEL (name, "LRTB", 0); + else + ASM_GENERATE_INTERNAL_LABEL (name, "LRT", 0); + } else - ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0); + { + if (need_bnd_p) + ASM_GENERATE_INTERNAL_LABEL (name, "LITB", 0); + else + ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0); + } } } } @@ -12089,7 +12131,7 @@ output_indirect_thunk_function (bool need_bnd_p, int regno) tree decl; /* Create __x86_indirect_thunk/__x86_indirect_thunk_bnd. */ - indirect_thunk_name (name, regno, need_bnd_p); + 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)); @@ -12132,6 +12174,35 @@ output_indirect_thunk_function (bool need_bnd_p, int regno) 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); @@ -28737,7 +28808,7 @@ ix86_output_indirect_branch (rtx call_op, const char *xasm, indirect_thunk_needed = true; } } - indirect_thunk_name (thunk_name_buf, regno, need_bnd_p); + indirect_thunk_name (thunk_name_buf, regno, need_bnd_p, false); thunk_name = thunk_name_buf; } else @@ -28866,6 +28937,43 @@ ix86_output_indirect_jmp (rtx call_op, bool ret_p) 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 * @@ -41937,6 +42045,28 @@ ix86_handle_fndecl_attribute (tree *node, tree name, tree args, int, } } + 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; } @@ -46247,6 +46377,8 @@ static const struct attribute_spec ix86_attribute_table[] = 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 9d2209e605b..45593068905 100644 --- a/gcc/config/i386/i386.h +++ b/gcc/config/i386/i386.h @@ -2616,6 +2616,9 @@ struct GTY(()) machine_function { "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; diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md index 12115784c52..6a1b4717565 100644 --- a/gcc/config/i386/i386.md +++ b/gcc/config/i386/i386.md @@ -12305,7 +12305,7 @@ (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") @@ -12327,12 +12327,7 @@ [(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") diff --git a/gcc/config/i386/i386.opt b/gcc/config/i386/i386.opt index 053fde8597b..32af9277769 100644 --- a/gcc/config/i386/i386.opt +++ b/gcc/config/i386/i386.opt @@ -932,9 +932,13 @@ mindirect-branch= Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_indirect_branch) Init(indirect_branch_keep) Convert indirect call and jump. +mfunction-return= +Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_function_return) Init(indirect_branch_keep) +Convert function return. + Enum Name(indirect_branch) Type(enum indirect_branch) -Known indirect branch choices (for use with the -mindirect-branch= option): +Known indirect branch choices (for use with the -mindirect-branch=/-mfunction-return= options): EnumValue Enum(indirect_branch) String(keep) Value(indirect_branch_keep) diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi index 935381da6fa..46e0a3623a6 100644 --- a/gcc/doc/extend.texi +++ b/gcc/doc/extend.texi @@ -5550,6 +5550,15 @@ call and jump to call and return thunk. @samp{thunk-inline} converts indirect call and jump to inlined call and return thunk. @samp{thunk-extern} converts indirect call and jump to external call and return thunk provided in a separate object file. + +@item function_return("@var{choice}") +@cindex @code{function_return} function attribute, x86 +On x86 targets, the @code{function_return} attribute causes the compiler +to convert function return with @var{choice}. @samp{keep} keeps function +return unmodified. @samp{thunk} converts function return to call and +return thunk. @samp{thunk-inline} converts function return to inlined +call and return thunk. @samp{thunk-extern} converts function return to +external call and return thunk provided in a separate object file. @end table On the x86, the inliner does not inline a diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 7ce36fb9a80..1a63f84f78b 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -1211,7 +1211,8 @@ See RS/6000 and PowerPC Options. -mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol -malign-data=@var{type} -mstack-protector-guard=@var{guard} @gol -mmitigate-rop -mgeneral-regs-only @gol --mindirect-branch=@var{choice} -mindirect-branch-loop=@var{choice}} +-mindirect-branch=@var{choice} -mindirect-branch-loop=@var{choice} +-mfunction-return==@var{choice}} @emph{x86 Windows Options} @gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol @@ -25698,6 +25699,17 @@ to external call and return thunk provided in a separate object file. You can control this behavior for a specific function by using the function attribute @code{indirect_branch}. @xref{Function Attributes}. +@item -mfunction-return=@var{choice} +@opindex -mfunction-return +Convert function return with @var{choice}. The default is @samp{keep}, +which keeps function return unmodified. @samp{thunk} converts function +return to call and return thunk. @samp{thunk-inline} converts function +return to inlined call and return thunk. @samp{thunk-extern} converts +function return to external call and return thunk provided in a separate +object file. You can control this behavior for a specific function by +using the function attribute @code{function_return}. +@xref{Function Attributes}. + @item -mindirect-branch-loop=@var{choice} @opindex -mindirect-branch-boop Control loop filler in call and return thunk for indirect call and jump. diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c index 08827448325..bd29d466f5c 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-1.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c index 1344b6bc0e9..cf6a6736524 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-2.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c index dcc9ef75df6..46925434933 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-3.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c index 2502860b6e6..ee95d21c08e 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c index 58c81d16316..7ea4af5bb71 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-5.c @@ -1,5 +1,5 @@ /* { dg-do compile { target *-*-linux* } } */ -/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */ +/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */ extern void bar (void); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c index b4c528a5b30..cbf2159ce50 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-6.c @@ -1,5 +1,5 @@ /* { dg-do compile { target *-*-linux* } } */ -/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk" } */ +/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk" } */ extern void bar (void); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c index 4553ef0b622..44130a4175d 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ void func0 (void); void func1 (void); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c index b8e9851c76f..2e3e3a5ca8b 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-1.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c index 1d6d18c2aba..c88fd33c494 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-2.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c index af167840b81..21b69728796 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-3.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c index 146124894a0..0bd6aab2fd6 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-4.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c index 0833606046b..98785a38248 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-5.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c index 2eba0fbd9b2..a498a39e404 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-6.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c index f58427eae11..66f295d1eb6 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-7.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -fno-pic" } */ void func0 (void); void func1 (void); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c index 6960fa0bbfb..c246f974610 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-attr-8.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fno-pic" } */ void func0 (void); void func1 (void); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c index 21b25ec5bbf..154eb7adfcd 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-1.c @@ -1,5 +1,5 @@ /* { dg-do compile { target { ! x32 } } } */ -/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ void (*dispatch) (char *); char buf[10]; diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c index 7bf7e6a1095..62d9831af27 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-2.c @@ -1,5 +1,5 @@ /* { dg-do compile { target { ! x32 } } } */ -/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fno-pic" } */ void (*dispatch) (char *); char buf[10]; diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c index 14c60f232db..b5a601a4da3 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-3.c @@ -1,5 +1,5 @@ /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */ -/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ void bar (char *); char buf[10]; diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c index 4fd6f360801..c36a821c8e5 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-bnd-4.c @@ -1,5 +1,5 @@ /* { dg-do compile { target { *-*-linux* && { ! x32 } } } } */ -/* { dg-options "-O2 -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk -fcheck-pointer-bounds -mmpx -fpic -fno-plt" } */ void bar (char *); char buf[10]; diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c index 49f27b49465..637fc3d3f4e 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c index a1e3eb6fc74..ff9efe03fe6 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-2.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c index 395634e7e5c..2686a5f2db4 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-3.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c index fd3f63379a1..f07f6b214ad 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-4.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c index ba2f92b6f34..21740ac5b7f 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-5.c @@ -1,5 +1,5 @@ /* { dg-do compile { target *-*-linux* } } */ -/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */ +/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */ extern void bar (void); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c index 0c5a2d472c6..a77c1f470b8 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-6.c @@ -1,5 +1,5 @@ /* { dg-do compile { target *-*-linux* } } */ -/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-extern" } */ +/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-extern" } */ extern void bar (void); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c index 665252327aa..e64910fd4aa 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-7.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk-extern -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-extern -fno-pic" } */ void func0 (void); void func1 (void); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c index 3ace8d1b031..efa0096e1e0 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-1.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c index 6c97b96f1f2..775d0b8c53e 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-2.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c index 8f6759cbf06..788271f049f 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-3.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c index b07d08cab0f..ef8a2c746a7 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-4.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ typedef void (*dispatch_t)(long offset); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c index 10794886b1b..848ceefca02 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-5.c @@ -1,5 +1,5 @@ /* { dg-do compile { target *-*-linux* } } */ -/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */ +/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */ extern void bar (void); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c index a26ec4b06ed..64608100782 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-6.c @@ -1,5 +1,5 @@ /* { dg-do compile { target *-*-linux* } } */ -/* { dg-options "-O2 -fpic -fno-plt -mindirect-branch=thunk-inline" } */ +/* { dg-options "-O2 -mfunction-return=keep -fpic -fno-plt -mindirect-branch=thunk-inline" } */ extern void bar (void); diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c index 77253af17c6..3c2758360f5 100644 --- a/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c +++ b/gcc/testsuite/gcc.target/i386/indirect-thunk-inline-7.c @@ -1,5 +1,5 @@ /* { dg-do compile } */ -/* { dg-options "-O2 -mindirect-branch=thunk-inline -fno-pic" } */ +/* { dg-options "-O2 -mfunction-return=keep -mindirect-branch=thunk-inline -fno-pic" } */ void func0 (void); void func1 (void); 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..07f382c21b2 --- /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..d7313d631aa --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c @@ -0,0 +1,22 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -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..66efd2adfd3 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c @@ -0,0 +1,22 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -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..b5306581e91 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c @@ -0,0 +1,21 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -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..3759246d7ff --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c @@ -0,0 +1,21 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -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..6827fa250aa --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c @@ -0,0 +1,21 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -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..0437ca2453b --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c @@ -0,0 +1,21 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -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..173fe243d7b --- /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..5516813a290 --- /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..9f1ade857ef --- /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..abecde0a550 --- /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..3b51a9931db --- /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..52160e0ee77 --- /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..65819c2ab76 --- /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..a6a1bbc054b --- /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..adf83df4776 --- /dev/null +++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c @@ -0,0 +1,23 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -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 } } } */ |