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base/SOURCES/gcc48-rh1535655-3.patch

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commit 2ad2b4c4d8f0776012d36f1f3ae17c5fef55c7f9
Author: root <root@lenovo-x3950-01.khw.lab.eng.bos.redhat.com>
Date: Thu Jan 18 17:43:15 2018 -0500
HJ's patch #2
diff --git a/gcc/config/i386/i386-protos.h b/gcc/config/i386/i386-protos.h
index ecdf108..4e4b210 100644
--- a/gcc/config/i386/i386-protos.h
+++ b/gcc/config/i386/i386-protos.h
@@ -307,6 +307,7 @@ extern enum attr_cpu ix86_schedule;
extern const char * ix86_output_call_insn (rtx 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);
#ifdef RTX_CODE
/* Target data for multipass lookahead scheduling.
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index ebc9a90..9dffd02f 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -4635,6 +4635,31 @@ 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;
+ }
}
/* Remember the last target of ix86_set_current_function. */
@@ -8733,8 +8758,11 @@ static int indirect_thunks_used;
/* Fills in the label name that should be used for the indirect thunk. */
static void
-indirect_thunk_name (char name[32], int regno)
+indirect_thunk_name (char name[32], int regno, bool ret_p)
{
+ if (regno >= 0 && ret_p)
+ gcc_unreachable ();
+
if (USE_HIDDEN_LINKONCE)
{
if (regno >= 0)
@@ -8748,14 +8776,22 @@ indirect_thunk_name (char name[32], int regno)
reg_prefix, reg_names[regno]);
}
else
- sprintf (name, "__x86_indirect_thunk");
+ {
+ const char *ret = ret_p ? "return" : "indirect";
+ sprintf (name, "__x86_%s_thunk", ret);
+ }
}
else
{
if (regno >= 0)
ASM_GENERATE_INTERNAL_LABEL (name, "LITR", regno);
else
- ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0);
+ {
+ if (ret_p)
+ ASM_GENERATE_INTERNAL_LABEL (name, "LRT", 0);
+ else
+ ASM_GENERATE_INTERNAL_LABEL (name, "LIT", 0);
+ }
}
}
@@ -8841,7 +8877,7 @@ output_indirect_thunk_function (int regno)
tree decl;
/* Create __x86_indirect_thunk. */
- indirect_thunk_name (name, regno);
+ indirect_thunk_name (name, regno, false);
decl = build_decl (BUILTINS_LOCATION, FUNCTION_DECL,
get_identifier (name),
build_function_type_list (void_type_node, NULL_TREE));
@@ -8885,6 +8921,36 @@ output_indirect_thunk_function (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, true);
+#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);
+ ASM_OUTPUT_LABEL (asm_out_file, alias);
+ }
+#else
+ ASM_OUTPUT_DEF (asm_out_file, alias, name);
+ 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);
@@ -24353,7 +24419,7 @@ ix86_output_indirect_branch_via_reg (rtx call_op, bool sibcall_p)
i -= (FIRST_REX_INT_REG - LAST_INT_REG - 1);
indirect_thunks_used |= 1 << i;
}
- indirect_thunk_name (thunk_name_buf, regno);
+ indirect_thunk_name (thunk_name_buf, regno, false);
thunk_name = thunk_name_buf;
}
else
@@ -24437,7 +24503,7 @@ ix86_output_indirect_branch_via_push (rtx call_op, const char *xasm,
{
if (cfun->machine->indirect_branch_type == indirect_branch_thunk)
indirect_thunk_needed = true;
- indirect_thunk_name (thunk_name_buf, regno);
+ indirect_thunk_name (thunk_name_buf, regno, false);
thunk_name = thunk_name_buf;
}
else
@@ -24559,6 +24625,37 @@ ix86_output_indirect_jmp (rtx call_op, bool ret_p)
return "jmp\t%A0";
}
+/* Output function return. CALL_OP is the jump target. Add a REP
+ prefix to RET if LONG_P is true and function return is kept. */
+
+const char *
+ix86_output_function_return (bool long_p)
+{
+ if (cfun->machine->function_return_type != indirect_branch_keep)
+ {
+ char thunk_name[32];
+
+ 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, true);
+ indirect_thunk_needed |= need_thunk;
+ fprintf (asm_out_file, "\tjmp\t%s\n", thunk_name);
+ }
+ else
+ output_indirect_thunk (-1);
+
+ return "";
+ }
+
+ if (!long_p)
+ return "ret";
+
+ return "rep%; ret";
+}
+
/* Output the assembly for a call instruction. */
const char *
@@ -35972,6 +36069,28 @@ ix86_handle_fndecl_attribute (tree *node, tree name,
}
}
+ 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;
}
@@ -39492,6 +39611,9 @@ static const struct attribute_spec ix86_attribute_table[] =
ix86_handle_callee_pop_aggregate_return, true },
{ "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 8183cee7..8ff7026 100644
--- a/gcc/config/i386/i386.h
+++ b/gcc/config/i386/i386.h
@@ -2329,6 +2329,9 @@ 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;
+
/* During prologue/epilogue generation, the current frame state.
Otherwise, the frame state at the end of the prologue. */
struct machine_frame_state fs;
diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index b943849..ef16cf5 100644
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -11749,7 +11749,7 @@
(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")
@@ -11762,7 +11762,7 @@
[(simple_return)
(unspec [(const_int 0)] UNSPEC_REP)]
"reload_completed"
- "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 0f6965a..9dfa2cb 100644
--- a/gcc/config/i386/i386.opt
+++ b/gcc/config/i386/i386.opt
@@ -635,9 +635,13 @@ mindirect-branch=
Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_indirect_branch) Init(indirect_branch_keep)
Convert indirect call and jump to call and return thunks.
+mfunction-return=
+Target Report RejectNegative Joined Enum(indirect_branch) Var(ix86_function_return) Init(indirect_branch_keep)
+Convert function return to call and return thunk.
+
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 847991c..add4f18 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -3821,6 +3821,15 @@ 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 PowerPC, the following options are allowed:
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index b299fbf..5acd23a 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -658,7 +658,7 @@ Objective-C and Objective-C++ Dialects}.
-m32 -m64 -mx32 -mlarge-data-threshold=@var{num} @gol
-msse2avx -mfentry -m8bit-idiv @gol
-mavx256-split-unaligned-load -mavx256-split-unaligned-store @gol
--mindirect-branch=@var{choice}}
+-mindirect-branch=@var{choice} -mfunction-return==@var{choice}}
@emph{i386 and x86-64 Windows Options}
@gccoptlist{-mconsole -mcygwin -mno-cygwin -mdll @gol
@@ -14658,6 +14658,17 @@ 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}.
+
@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
index 87f6dae..034b4cc 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 6bc4f0a..e0c57cb 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 f20d35c..3c0d4c3 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);
@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
return 0;
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
/* { 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" } } */
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-4.c
index 0eff8fb..14d4ef6 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);
@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
return 0;
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
/* { 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" } } */
diff --git a/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-7.c
index afdb600..bc6b47a 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);
@@ -35,7 +35,7 @@ bar (int i)
}
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */
/* { 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" } } */
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 efccdec..7c45142 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 ca3814e..9eebc84 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 97744d6..f938db0 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);
@@ -14,7 +14,7 @@ male_indirect_jump (long offset)
return 0;
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
/* { dg-final { scan-assembler {\tpause} } } */
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 bfce3ea..4e58599 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);
@@ -13,7 +13,7 @@ male_indirect_jump (long offset)
return 0;
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
/* { dg-final { scan-assembler {\tpause} } } */
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 0833606..b8d5024 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);
@@ -14,7 +14,7 @@ male_indirect_jump (long offset)
return 0;
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
/* { 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 } } } } */
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 2eba0fb..455adab 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);
@@ -13,7 +13,7 @@ male_indirect_jump (long offset)
return 0;
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
/* { 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 } } } } */
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 f58427e..4595b84 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);
@@ -36,7 +36,7 @@ bar (int i)
}
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */
/* { 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)} } } */
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 564ed39..d730d31 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-extern-1.c b/gcc/testsuite/gcc.target/i386/indirect-thunk-extern-1.c
index 7fd01d6..f424181 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 825f6b2..ac54868 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 395634e..06ebf1c 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);
@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
return 0;
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
/* { 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 } } } } */
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 fd3f633..1c8f944 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);
@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
return 0;
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
/* { 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 } } } } */
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 6652523..86e9fd1 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);
@@ -35,7 +35,7 @@ bar (int i)
}
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */
/* { 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)} } } */
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 48c4dd4..4117a35 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 355dad5..650d55c 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 244fec7..9540996 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);
@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
return 0;
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
/* { dg-final { scan-assembler-times {\tpause} 1 } } */
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 107ebe3..f3db6e2 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);
@@ -12,7 +12,7 @@ male_indirect_jump (long offset)
return 0;
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?dispatch" { target { { ! x32 } && *-*-linux* } } } } */
/* { dg-final { scan-assembler-times "jmp\[ \t\]*\.LIND" 2 } } */
/* { dg-final { scan-assembler-times "call\[ \t\]*\.LIND" 2 } } */
/* { dg-final { scan-assembler-times {\tpause} 1 } } */
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 d02b1dc..764a375 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);
@@ -35,7 +35,7 @@ bar (int i)
}
}
-/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*\.L\[0-9\]+\\(,%" { target { { ! x32 } && *-*-linux* } } } } */
/* { dg-final { scan-assembler-not "pushq\[ \t\]%rax" { target x32 } } } */
/* { dg-final { scan-assembler "jmp\[ \t\]*\.LIND" } } */
/* { dg-final { scan-assembler "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 0000000..7223f67
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-1.c
@@ -0,0 +1,13 @@
+/* { 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 {\tpause} } } */
+/* { 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 0000000..3a6727b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-10.c
@@ -0,0 +1,23 @@
+/* { 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 {\tpause} 2 } } */
+/* { dg-final { scan-assembler-times {\tlfence} 2 } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+/* { 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 0000000..b8f6818
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-11.c
@@ -0,0 +1,23 @@
+/* { 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 {\tpause} 1 } } */
+/* { 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 } && *-*-linux* } } } } */
+/* { 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 0000000..01b0a02
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-12.c
@@ -0,0 +1,22 @@
+/* { 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 {\tpause} 1 } } */
+/* { 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 0000000..4b497b5
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-13.c
@@ -0,0 +1,22 @@
+/* { 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 {\tpause} 2 } } */
+/* { dg-final { scan-assembler-times {\tlfence} 2 } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+/* { 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 0000000..4ae4c44
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-14.c
@@ -0,0 +1,22 @@
+/* { 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 {\tpause} 1 } } */
+/* { 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 } && *-*-linux* } } } } */
+/* { 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 0000000..5b5bc76
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-15.c
@@ -0,0 +1,22 @@
+/* { 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 {\tpause} 1 } } */
+/* { dg-final { scan-assembler-times {\tlfence} 1 } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+/* { 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 0000000..a16cad1
--- /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 {\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/ret-thunk-2.c b/gcc/testsuite/gcc.target/i386/ret-thunk-2.c
new file mode 100644
index 0000000..c6659e3
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-2.c
@@ -0,0 +1,13 @@
+/* { 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 {\tpause} } } */
+/* { 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 0000000..0f7f388
--- /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 {\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/ret-thunk-4.c b/gcc/testsuite/gcc.target/i386/ret-thunk-4.c
new file mode 100644
index 0000000..9ae37e8
--- /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 {\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/ret-thunk-5.c b/gcc/testsuite/gcc.target/i386/ret-thunk-5.c
new file mode 100644
index 0000000..4bd0d2a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-5.c
@@ -0,0 +1,15 @@
+/* { 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 {\tpause} } } */
+/* { 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 0000000..053841f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-6.c
@@ -0,0 +1,14 @@
+/* { 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 {\tpause} } } */
+/* { 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 0000000..262e678
--- /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 {\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/ret-thunk-8.c b/gcc/testsuite/gcc.target/i386/ret-thunk-8.c
new file mode 100644
index 0000000..c1658e9
--- /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 {\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/ret-thunk-9.c b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
new file mode 100644
index 0000000..fa24a1f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/ret-thunk-9.c
@@ -0,0 +1,24 @@
+/* { 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 "jmp\[ \t\]*\.LIND" } } */
+/* { dg-final { scan-assembler "call\[ \t\]*\.LIND" } } */
+/* { dg-final { scan-assembler "__x86_indirect_thunk:" } } */
+/* { dg-final { scan-assembler-times {\tpause} 1 { target { ! x32 } } } } */
+/* { dg-final { scan-assembler-times {\tlfence} 1 { target { ! x32 } } } } */
+/* { dg-final { scan-assembler "push(?:l|q)\[ \t\]*_?bar" { target { { ! x32 } && *-*-linux* } } } } */
+/* { dg-final { scan-assembler "jmp\[ \t\]*__x86_indirect_thunk" { target { ! x32 } } } } */
+/* { dg-final { scan-assembler-times {\tpause} 2 { 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 } } } */