[stack] Automatic Stack Alignment Support - Test Cases
Ye, Joey
joey.ye@intel.com
Thu Mar 20 13:59:00 GMT 2008
2008-03-19 H.J. Lu <hongjiu.lu@intel.com>
Joey Ye <joey.ye@intel.com>
* gcc.dg/torture/stackalign/alloca-1.c: New.
* gcc.dg/torture/stackalign/builtin-apply-1.c: Likewise.
* gcc.dg/torture/stackalign/builtin-apply-2.c: Likewise.
* gcc.dg/torture/stackalign/builtin-apply-3.c: Likewise.
* gcc.dg/torture/stackalign/builtin-apply-4.c: Likewise.
* gcc.dg/torture/stackalign/builtin-return-1.c: Likewise.
* gcc.dg/torture/stackalign/check.h: Likewise.
* gcc.dg/torture/stackalign/comp-goto-1.c: Likewise.
* gcc.dg/torture/stackalign/fastcall-1.c: Likewise.
* gcc.dg/torture/stackalign/global-1.c: Likewise.
* gcc.dg/torture/stackalign/inline-1.c: Likewise.
* gcc.dg/torture/stackalign/inline-2.c: Likewise.
* gcc.dg/torture/stackalign/nested-1.c: Likewise.
* gcc.dg/torture/stackalign/nested-2.c: Likewise.
* gcc.dg/torture/stackalign/nested-3.c: Likewise.
* gcc.dg/torture/stackalign/nested-4.c: Likewise.
* gcc.dg/torture/stackalign/nested-5.c: Likewise.
* gcc.dg/torture/stackalign/nested-6.c: Likewise.
* gcc.dg/torture/stackalign/non-local-goto-1.c: Likewise.
* gcc.dg/torture/stackalign/non-local-goto-2.c: Likewise.
* gcc.dg/torture/stackalign/non-local-goto-3.c: Likewise.
* gcc.dg/torture/stackalign/non-local-goto-4.c: Likewise.
* gcc.dg/torture/stackalign/non-local-goto-5.c: Likewise.
* gcc.dg/torture/stackalign/pr16660-1.c: Likewise.
* gcc.dg/torture/stackalign/pr16660-2.c: Likewise.
* gcc.dg/torture/stackalign/pr16660-3.c: Likewise.
* gcc.dg/torture/stackalign/setjmp-1.c: Likewise.
* gcc.dg/torture/stackalign/setjmp-2.c: Likewise.
* gcc.dg/torture/stackalign/setjmp-3.c: Likewise.
* gcc.dg/torture/stackalign/setjmp-4.c: Likewise.
* gcc.dg/torture/stackalign/sibcall-1.c: Likewise.
* gcc.dg/torture/stackalign/stackalign.exp: Likewise.
* gcc.dg/torture/stackalign/struct-1.c: Likewise.
* gcc.dg/torture/stackalign/vararg-1.c: Likewise.
* gcc.dg/torture/stackalign/vararg-2.c: Likewise.
* gcc.target/i386/align-main-1.c: Likewise.
* gcc.target/i386/align-main-2.c: Likewise.
* gcc.target/i386/stackalign/asm-1.c: Likewise.
* gcc.target/i386/stackalign/local-1.c: Likewise.
* gcc.target/i386/stackalign/return-1.c: Likewise.
* gcc.target/i386/stackalign/return-2.c: Likewise.
* gcc.target/i386/stackalign/return-3.c: Likewise.
* gcc.target/i386/stackalign/return-4.c: Likewise.
* gcc.target/i386/stackalign/return-5.c: Likewise.
* gcc.target/i386/stackalign/return-6.c: Likewise.
* gcc.target/i386/stackalign/stackalign.exp: Likewise.
* g++.dg/torture/stackalign/check.h: Likewise.
* g++.dg/torture/stackalign/eh-alloca-1.C: Likewise.
* g++.dg/torture/stackalign/eh-fastcall-1.C: Likewise.
* g++.dg/torture/stackalign/eh-global-1.C: Likewise.
* g++.dg/torture/stackalign/eh-inline-1.C: Likewise.
* g++.dg/torture/stackalign/eh-inline-2.C: Likewise.
* g++.dg/torture/stackalign/eh-vararg-1.C: Likewise.
* g++.dg/torture/stackalign/eh-vararg-2.C: Likewise.
* g++.dg/torture/stackalign/stackalign.exp: Likewise.
* g++.dg/torture/stackalign/test-unwind.h: Likewise.
* g++.dg/torture/stackalign/throw-1.C: Likewise.
* g++.dg/torture/stackalign/throw-2.C: Likewise.
* g++.dg/torture/stackalign/throw-3.C: Likewise.
* g++.dg/torture/stackalign/throw-4.C: Likewise.
* g++.dg/torture/stackalign/unwind-0.C: Likewise.
* g++.dg/torture/stackalign/unwind-1.C: Likewise.
* g++.dg/torture/stackalign/unwind-2.C: Likewise.
* g++.dg/torture/stackalign/unwind-3.C: Likewise.
* g++.dg/torture/stackalign/unwind-4.C: Likewise.
* g++.dg/torture/stackalign/unwind-5.C: Likewise.
* g++.dg/torture/stackalign/unwind-6.C: Likewise.
* gcc.target/i386/20060512-1.c: Add
-mpreferred-stack-boundary=4.
(main): Move "popl" after check.
* gcc.target/i386/20060512-3.c: Likewise.
* gcc.target/i386/20060512-2.c: Add
-mpreferred-stack-boundary=4.
Remove dg-error.
* gcc.target/i386/20060512-4.c: Add
-mpreferred-stack-boundary=4.
Remove dg-warning.
* lib/target-supports.exp
(check_effective_target_unaligned_stack):
Always return 0.
(check_effective_target_automatic_stack_alignment): New.
Index: gcc.target/i386/20060512-3.c
===================================================================
--- gcc.target/i386/20060512-3.c (.../fsf/trunk/gcc/testsuite)
(revision 1877)
+++ gcc.target/i386/20060512-3.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -1,6 +1,6 @@
/* { dg-do run } */
/* { dg-require-effective-target ilp32 } */
-/* { dg-options "-std=gnu99 -msse2 -mstackrealign" } */
+/* { dg-options "-std=gnu99 -msse2 -mstackrealign
-mpreferred-stack-boundary=4" } */
#include "sse2-check.h"
@@ -28,7 +28,7 @@
int result;
asm ("pushl %esi"); /* Disalign runtime stack. */
result = self_aligning_function (g_1, g_2);
- asm ("popl %esi");
if (result != 42)
abort ();
+ asm ("popl %esi");
}
Index: gcc.target/i386/align-main-2.c
===================================================================
--- gcc.target/i386/align-main-2.c (.../fsf/trunk/gcc/testsuite)
(revision 0)
+++ gcc.target/i386/align-main-2.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,25 @@
+/* Test for stack alignment when PREFERRED_STACK_BOUNDARY > alignment
+ of local variable. */
+/* { dg-do compile } */
+/* { dg-options "-O2 -mpreferred-stack-boundary=6
-mincoming-stack-boundary=6" } */
+/* { dg-final { scan-assembler "and\[lq\]?\[\\t \]*\\$-64,\[\\t
\]*%\[re\]?sp" } } */
+/* { dg-final { scan-assembler-not "and\[lq\]?\[\\t \]*\\$-128,\[\\t
\]*%\[re\]?sp" } } */
+
+#include <stddef.h>
+
+#define ALIGNMENT 32
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+extern void abort(void);
+
+void check(void * a)
+{
+ if (((ptrdiff_t)a & (ALIGNMENT-1)) != 0)
+ abort();
+}
+
+int main()
+{
+ aligned a = 1;
+ check(&a);
+ return 0;
+}
Index: gcc.target/i386/20060512-4.c
===================================================================
--- gcc.target/i386/20060512-4.c (.../fsf/trunk/gcc/testsuite)
(revision 1877)
+++ gcc.target/i386/20060512-4.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -1,12 +1,12 @@
/* { dg-do compile } */
/* { dg-require-effective-target ilp32 } */
-/* { dg-options "-mstackrealign" } */
+/* { dg-options "-mstackrealign -mpreferred-stack-boundary=4" } */
int
outer_function (int x, int y)
{
int __attribute__ ((__noinline__))
nested_function (int x, int y)
- { /* { dg-warning "-mstackrealign ignored for nested functions" }
*/
+ {
return (x + y);
}
return (3 + nested_function (x, y));
Index: gcc.target/i386/20060512-1.c
===================================================================
--- gcc.target/i386/20060512-1.c (.../fsf/trunk/gcc/testsuite)
(revision 1877)
+++ gcc.target/i386/20060512-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -1,6 +1,6 @@
/* { dg-do run } */
/* { dg-require-effective-target ilp32 } */
-/* { dg-options "-std=gnu99 -msse2" } */
+/* { dg-options "-std=gnu99 -msse2 -mpreferred-stack-boundary=4" } */
#include "sse2-check.h"
@@ -28,7 +28,7 @@
int result;
asm ("pushl %esi"); /* Disalign runtime stack. */
result = self_aligning_function (g_1, g_2);
- asm ("popl %esi");
if (result != 42)
abort ();
+ asm ("popl %esi");
}
Index: gcc.target/i386/stackalign/asm-1.c
===================================================================
--- gcc.target/i386/stackalign/asm-1.c (.../fsf/trunk/gcc/testsuite)
(revision 0)
+++ gcc.target/i386/stackalign/asm-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,5 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target ilp32 } */
+/* { dg-options "-mpreferred-stack-boundary=2" } */
+
+f(){asm("%0"::"r"(1.5F));}g(){asm("%0"::"r"(1.5));}
Index: gcc.target/i386/stackalign/return-2.c
===================================================================
--- gcc.target/i386/stackalign/return-2.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.target/i386/stackalign/return-2.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,16 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target ilp32 } */
+/* { dg-options "-mpreferred-stack-boundary=2" } */
+
+void baz (void);
+
+double foo (void)
+{
+ baz ();
+ return;
+}
+
+double bar (void)
+{
+ baz ();
+}
Index: gcc.target/i386/stackalign/return-3.c
===================================================================
--- gcc.target/i386/stackalign/return-3.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.target/i386/stackalign/return-3.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target ilp32 } */
+/* { dg-require-effective-target dfp } */
+/* { dg-options "-msse -std=gnu99 -mpreferred-stack-boundary=2" } */
+
+_Decimal128 test (void)
+{
+ return 1234123412341234.123412341234dl;
+}
Index: gcc.target/i386/stackalign/return-4.c
===================================================================
--- gcc.target/i386/stackalign/return-4.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.target/i386/stackalign/return-4.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-options "-mpreferred-stack-boundary=4" } */
+/* { dg-final { scan-assembler-not "andl\[^\\n\]*-64,\[^\\n\]*sp" } }
*/
+
+typedef int aligned __attribute__((aligned(64)));
+
+aligned
+foo (void) { }
Index: gcc.target/i386/stackalign/return-5.c
===================================================================
--- gcc.target/i386/stackalign/return-5.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.target/i386/stackalign/return-5.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-mpreferred-stack-boundary=4" } */
+/* { dg-final { scan-assembler-not "andl\[^\\n\]*-64,\[^\\n\]*sp" } }
*/
+
+struct bar
+{
+ int x;
+} __attribute__((aligned(64)));
+
+
+struct bar
+foo (void) { }
Index: gcc.target/i386/stackalign/return-6.c
===================================================================
--- gcc.target/i386/stackalign/return-6.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.target/i386/stackalign/return-6.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-mpreferred-stack-boundary=4" } */
+/* { dg-final { scan-assembler-not "andl\[^\\n\]*-64,\[^\\n\]*sp" } }
*/
+
+struct bar
+{
+ int x __attribute__((aligned(64)));
+};
+
+
+struct bar
+foo (void) { }
Index: gcc.target/i386/stackalign/local-1.c
===================================================================
--- gcc.target/i386/stackalign/local-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.target/i386/stackalign/local-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,25 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target ilp32 } */
+/* { dg-require-effective-target nonpic } */
+/* { dg-options "-O2 -funit-at-a-time -fomit-frame-pointer
-mpreferred-stack-boundary=4" } */
+/* { dg-final { scan-assembler-not "sub\[^\\n\]*sp" } } */
+
+static __attribute__ ((noinline)) q ();
+int a;
+
+/* This function should not require any stack manipulation
+ for preferred stack bounday. */
+void
+e ()
+{
+ if (a)
+ {
+ e ();
+ a--;
+ }
+ q ();
+}
+
+static __attribute__ ((noinline)) q ()
+{
+}
Index: gcc.target/i386/stackalign/stackalign.exp
===================================================================
--- gcc.target/i386/stackalign/stackalign.exp
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.target/i386/stackalign/stackalign.exp
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,47 @@
+# Copyright (C) 2008
+# Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>.
+
+# Exit immediately if this isn't a x86 target.
+if { ![istarget i?86*-*-*] && ![istarget x86_64-*-*] } then {
+ return
+}
+
+load_lib gcc-dg.exp
+
+# Only run on targets which support automatic stack alignment.
+if { ![check_effective_target_automatic_stack_alignment] } then {
+ return
+}
+
+# If a testcase doesn't have special options, use these.
+global DEFAULT_CFLAGS
+if ![info exists DEFAULT_CFLAGS] then {
+ set DEFAULT_CFLAGS "-w"
+}
+
+# Initialize `dg'.
+dg-init
+
+set additional_flags "-mstackrealign"
+
+dg-runtest [lsort [glob $srcdir/$subdir/*.c]] $additional_flags
$DEFAULT_CFLAGS
+
+set additional_flags "-mno-stackrealign"
+
+dg-runtest [lsort [glob $srcdir/$subdir/*.c]] $additional_flags
$DEFAULT_CFLAGS
+
+dg-finish
Index: gcc.target/i386/stackalign/return-1.c
===================================================================
--- gcc.target/i386/stackalign/return-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.target/i386/stackalign/return-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,8 @@
+/* { dg-do compile } */
+/* { dg-require-effective-target ilp32 } */
+/* { dg-options "-mpreferred-stack-boundary=2" } */
+
+double
+foo (void)
+{
+}
Index: gcc.target/i386/20060512-2.c
===================================================================
--- gcc.target/i386/20060512-2.c (.../fsf/trunk/gcc/testsuite)
(revision 1877)
+++ gcc.target/i386/20060512-2.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -1,12 +1,12 @@
/* { dg-do compile } */
/* { dg-require-effective-target ilp32 } */
-/* { dg-options "-std=gnu99" } */
+/* { dg-options "-std=gnu99 -mpreferred-stack-boundary=4" } */
int
outer_function (int x, int y)
{
int __attribute__ ((__noinline__, __force_align_arg_pointer__))
nested_function (int x, int y)
- { /* { dg-error "force_align_arg_pointer not supported for nested
functions" } */
+ {
return (x + y);
}
return (3 + nested_function (x, y));
Index: gcc.target/i386/align-main-1.c
===================================================================
--- gcc.target/i386/align-main-1.c (.../fsf/trunk/gcc/testsuite)
(revision 0)
+++ gcc.target/i386/align-main-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,25 @@
+/* Test for stack alignment when PREFERRED_STACK_BOUNDARY < alignment
+ of local variable. */
+/* { dg-do compile } */
+/* { dg-options "-O2 -mpreferred-stack-boundary=6
-mincoming-stack-boundary=6" } */
+/* { dg-final { scan-assembler "and\[lq\]?\[\\t \]*\\$-128,\[\\t
\]*%\[re\]?sp" } } */
+/* { dg-final { scan-assembler-not "and\[lq\]?\[\\t \]*\\$-64,\[\\t
\]*%\[re\]?sp" } } */
+
+#include <stddef.h>
+
+#define ALIGNMENT 128
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+extern void abort(void);
+
+void check(void * a)
+{
+ if (((ptrdiff_t)a & (ALIGNMENT-1)) != 0)
+ abort();
+}
+
+int main()
+{
+ aligned a = 1;
+ check(&a);
+ return 0;
+}
Index: gcc.dg/torture/stackalign/nested-1.c
===================================================================
--- gcc.dg/torture/stackalign/nested-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/nested-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,44 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+void
+foo (void)
+{
+ aligned j;
+
+ void bar ()
+ {
+ aligned i;
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+
+ if (check_int (&j, __alignof__(j)) != j)
+ abort ();
+
+ j = -20;
+ }
+ bar ();
+
+ if (j != -20)
+ abort ();
+
+ if (check_int (&j, __alignof__(j)) != j)
+ abort ();
+}
+
+int
+main()
+{
+ foo ();
+ return 0;
+}
Index: gcc.dg/torture/stackalign/vararg-1.c
===================================================================
--- gcc.dg/torture/stackalign/vararg-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/vararg-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,60 @@
+/* { dg-do run } */
+
+#include <string.h>
+#include <stdarg.h>
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+void
+bar (char *p, int size)
+{
+ strncpy (p, "good", size);
+}
+
+void
+foo (const char *fmt, ...)
+{
+ va_list arg;
+ char *p;
+ aligned i;
+ int size;
+ double x;
+
+ va_start (arg, fmt);
+ size = va_arg (arg, int);
+ if (size != 5)
+ abort ();
+ p = __builtin_alloca (size + 1);
+
+ x = va_arg (arg, double);
+ if (x != 5.0)
+ abort ();
+
+ bar (p, size);
+ if (strncmp (p, "good", size) != 0)
+ {
+#ifdef DEBUG
+ p[size] = '\0';
+ printf ("Failed: %s != good\n", p);
+#endif
+ abort ();
+ }
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+ va_end (arg);
+}
+
+int
+main()
+{
+ foo ("foo", 5, 5.0);
+ return 0;
+}
Index: gcc.dg/torture/stackalign/nested-2.c
===================================================================
--- gcc.dg/torture/stackalign/nested-2.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/nested-2.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,45 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+void
+foo (void)
+{
+ aligned j;
+
+ __attribute__ ((__noinline__))
+ void bar ()
+ {
+ aligned i;
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+
+ if (check_int (&j, __alignof__(j)) != j)
+ abort ();
+
+ j = -20;
+ }
+ bar ();
+
+ if (j != -20)
+ abort ();
+
+ if (check_int (&j, __alignof__(j)) != j)
+ abort ();
+}
+
+int
+main()
+{
+ foo ();
+ return 0;
+}
Index: gcc.dg/torture/stackalign/vararg-2.c
===================================================================
--- gcc.dg/torture/stackalign/vararg-2.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/vararg-2.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,66 @@
+/* { dg-do run } */
+
+#include <string.h>
+#include <stdarg.h>
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+void
+bar (char *p, int size)
+{
+ strncpy (p, "good", size);
+}
+
+void
+test (va_list arg)
+{
+ char *p;
+ aligned i;
+ int size;
+ double x;
+
+ size = va_arg (arg, int);
+ if (size != 5)
+ abort ();
+
+ p = __builtin_alloca (size + 1);
+
+ x = va_arg (arg, double);
+ if (x != 5.0)
+ abort ();
+
+ bar (p, size);
+ if (strncmp (p, "good", size) != 0)
+ {
+#ifdef DEBUG
+ p[size] = '\0';
+ printf ("Failed: %s != good\n", p);
+#endif
+ abort ();
+ }
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+}
+
+void
+foo (const char *fmt, ...)
+{
+ va_list arg;
+ va_start (arg, fmt);
+ test (arg);
+ va_end (arg);
+}
+int
+main()
+{
+ foo ("foo", 5, 5.0);
+ return 0;
+}
Index: gcc.dg/torture/stackalign/nested-3.c
===================================================================
--- gcc.dg/torture/stackalign/nested-3.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/nested-3.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,63 @@
+/* { dg-do run } */
+
+#include <string.h>
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+void
+copy (char *p, int size)
+{
+ strncpy (p, "good", size);
+}
+
+void
+foo (int size)
+{
+ aligned j;
+
+ __attribute__ ((__noinline__))
+ void bar (int size)
+ {
+ char *p = __builtin_alloca (size + 1);
+ aligned i;
+
+ copy (p, size);
+ if (strncmp (p, "good", size) != 0)
+ {
+#ifdef DEBUG
+ p[size] = '\0';
+ printf ("Failed: %s != good\n", p);
+#endif
+ abort ();
+ }
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+
+ if (check_int (&j, __alignof__(j)) != j)
+ abort ();
+
+ j = -20;
+ }
+ bar (size);
+
+ if (j != -20)
+ abort ();
+
+ if (check_int (&j, __alignof__(j)) != j)
+ abort ();
+}
+
+int
+main()
+{
+ foo (5);
+ return 0;
+}
Index: gcc.dg/torture/stackalign/nested-4.c
===================================================================
--- gcc.dg/torture/stackalign/nested-4.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/nested-4.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,33 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int n;
+
+void
+g (void)
+{
+ __label__ lab;
+ void h (void)
+ {
+ aligned t;
+ if (check_int (&t, __alignof__(t)) != t)
+ abort ();
+ if (n+t == 0) goto lab;
+ }
+ h();
+lab:
+ return;
+}
+
+int main()
+{
+ g();
+ return 0;
+}
Index: gcc.dg/torture/stackalign/nested-5.c
===================================================================
--- gcc.dg/torture/stackalign/nested-5.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/nested-5.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,38 @@
+/* { dg-do run } */
+
+extern void abort (void);
+extern void exit (int);
+
+#ifndef NO_TRAMPOLINES
+static void recursive (int n, void (*proc) (void))
+{
+ __label__ l1;
+
+ void do_goto (void)
+ {
+ goto l1;
+ }
+
+ if (n == 3)
+ recursive (n - 1, do_goto);
+ else if (n > 0)
+ recursive (n - 1, proc);
+ else
+ (*proc) ();
+ return;
+
+l1:
+ if (n == 3)
+ exit (0);
+ else
+ abort ();
+}
+
+int main ()
+{
+ recursive (10, abort);
+ abort ();
+}
+#else
+int main () { return 0; }
+#endif
Index: gcc.dg/torture/stackalign/nested-6.c
===================================================================
--- gcc.dg/torture/stackalign/nested-6.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/nested-6.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,28 @@
+/* { dg-do run } */
+
+#ifndef NO_TRAMPOLINES
+
+typedef __SIZE_TYPE__ size_t;
+extern void abort (void);
+extern void exit (int);
+extern void qsort(void *, size_t, size_t, int (*)(const void *, const
void *));
+
+int main ()
+{
+ __label__ nonlocal;
+ int compare (const void *a, const void *b)
+ {
+ goto nonlocal;
+ }
+
+ char array[3];
+ qsort (array, 3, 1, compare);
+ abort ();
+
+ nonlocal:
+ exit (0);
+}
+
+#else
+int main() { return 0; }
+#endif
Index: gcc.dg/torture/stackalign/fastcall-1.c
===================================================================
--- gcc.dg/torture/stackalign/fastcall-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/fastcall-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,31 @@
+/* { dg-do run { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+__attribute__ ((fastcall))
+void
+foo (int j, int k, int m, int n, int o)
+{
+ aligned i;
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+
+ if (i != 20 || j != 1 || k != 2 || m != 3 || n != 4 || o != 5)
+ abort ();
+}
+
+int
+main()
+{
+ foo (1, 2, 3, 4, 5);
+ return 0;
+}
Index: gcc.dg/torture/stackalign/stackalign.exp
===================================================================
--- gcc.dg/torture/stackalign/stackalign.exp
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/stackalign.exp
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,52 @@
+# Copyright (C) 2008
+# Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>.
+
+# This harness is for tests that should be run at all optimisation
levels.
+
+load_lib gcc-dg.exp
+
+# Only run on targets which support automatic stack alignment.
+if { ![check_effective_target_automatic_stack_alignment] } then {
+ return
+}
+
+set additional_flags ""
+if { [istarget i?86*-*-*] || [istarget x86_64-*-*] } then {
+ lappend additional_flags "-mstackrealign"
+ lappend additional_flags "-mpreferred-stack-boundary=5"
+}
+
+dg-init
+
+gcc-dg-runtest [lsort [glob $srcdir/$subdir/*.c]] $additional_flags
+if { [check_effective_target_fpic] } then {
+ set pic_additional_flags $additional_flags
+ lappend pic_additional_flags "-fpic"
+ gcc-dg-runtest [lsort [glob $srcdir/$subdir/*.c]]
$pic_additional_flags
+}
+
+if { [istarget i?86*-*-*] || [istarget x86_64-*-*] } then {
+ lappend additional_flags "-mforce-drap"
+ gcc-dg-runtest [lsort [glob $srcdir/$subdir/*.c]] $additional_flags
+ if { [check_effective_target_fpic] } then {
+ set pic_additional_flags $additional_flags
+ lappend pic_additional_flags "-fpic"
+ gcc-dg-runtest [lsort [glob $srcdir/$subdir/*.c]]
$pic_additional_flags
+ }
+}
+
+dg-finish
Index: gcc.dg/torture/stackalign/global-1.c
===================================================================
--- gcc.dg/torture/stackalign/global-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/global-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,27 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+void
+foo (void)
+{
+ aligned i;
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+}
+
+int
+main()
+{
+ foo ();
+ return 0;
+}
Index: gcc.dg/torture/stackalign/setjmp-1.c
===================================================================
--- gcc.dg/torture/stackalign/setjmp-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/setjmp-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,43 @@
+/* { dg-do run } */
+
+extern int strcmp(const char *, const char *);
+extern char *strcpy(char *, const char *);
+extern void abort(void);
+extern void exit(int);
+
+void *buf[20];
+
+void __attribute__((noinline))
+sub2 (void)
+{
+ __builtin_longjmp (buf, 1);
+}
+
+int
+main ()
+{
+ char *p = 0;
+
+ p = (char *) __builtin_alloca (20);
+
+ strcpy (p, "test");
+
+ if (__builtin_setjmp (buf))
+ {
+ if (strcmp (p, "test") != 0)
+ abort ();
+
+ exit (0);
+ }
+
+ {
+ int *q = (int *) __builtin_alloca (p[2] * sizeof (int));
+ int i;
+
+ for (i = 0; i < p[2]; i++)
+ q[i] = 0;
+
+ while (1)
+ sub2 ();
+ }
+}
Index: gcc.dg/torture/stackalign/setjmp-2.c
===================================================================
--- gcc.dg/torture/stackalign/setjmp-2.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/setjmp-2.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,44 @@
+/* { dg-do run { target i?86-*-linux* x86_64-*-linux* } } */
+
+#include <setjmp.h>
+#include <signal.h>
+#include <stdlib.h>
+
+static jmp_buf segv_jmpbuf;
+
+static void segv_handler(int seg)
+{
+ __builtin_longjmp(segv_jmpbuf, 1);
+}
+
+static int is_addressable(void *p, size_t size)
+{
+ volatile char * volatile cp = (volatile char *)p;
+ volatile int ret;
+ struct sigaction sa, origsa;
+ sigset_t mask;
+
+ sa.sa_handler = segv_handler;
+ sa.sa_flags = 0;
+ sigfillset(&sa.sa_mask);
+ sigaction(SIGSEGV, &sa, &origsa);
+ sigprocmask(SIG_SETMASK, NULL, &mask);
+
+ if (__builtin_setjmp(segv_jmpbuf) == 0) {
+ while(size--)
+ *cp++;
+ ret = 1;
+ } else
+ ret = 0;
+
+ sigaction(SIGSEGV, &origsa, NULL);
+ sigprocmask(SIG_SETMASK, &mask, NULL);
+
+ return ret;
+}
+
+int main(int argc, char **argv)
+{
+ is_addressable(0x0, 1);
+ return 0;
+}
Index: gcc.dg/torture/stackalign/setjmp-3.c
===================================================================
--- gcc.dg/torture/stackalign/setjmp-3.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/setjmp-3.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,37 @@
+/* { dg-do run } */
+
+#include <setjmp.h>
+
+extern void abort (void);
+
+jmp_buf buf;
+
+void raise0(void)
+{
+ __builtin_longjmp (buf, 1);
+}
+
+int execute(int cmd)
+{
+ int last = 0;
+
+ if (__builtin_setjmp (buf) == 0)
+ while (1)
+ {
+ last = 1;
+ raise0 ();
+ }
+
+ if (last == 0)
+ return 0;
+ else
+ return cmd;
+}
+
+int main(void)
+{
+ if (execute (1) == 0)
+ abort ();
+
+ return 0;
+}
Index: gcc.dg/torture/stackalign/comp-goto-1.c
===================================================================
--- gcc.dg/torture/stackalign/comp-goto-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/comp-goto-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,41 @@
+/* { dg-do run } */
+
+#ifdef STACK_SIZE
+#define DEPTH ((STACK_SIZE) / 512 + 1)
+#else
+#define DEPTH 1000
+#endif
+
+extern void abort (void);
+extern void exit (int);
+
+#if ! defined (NO_LABEL_VALUES) && !defined (NO_TRAMPOLINES)
+int
+x(a)
+{
+ __label__ xlab;
+ void y(a)
+ {
+ void *x = &&llab;
+ if (a==-1)
+ goto *x;
+ if (a==0)
+ goto xlab;
+ llab:
+ y (a-1);
+ }
+ y (a);
+ xlab:;
+ return a;
+}
+#endif
+
+int
+main ()
+{
+#if ! defined (NO_LABEL_VALUES) && !defined (NO_TRAMPOLINES)
+ if (x (DEPTH) != DEPTH)
+ abort ();
+#endif
+ exit (0);
+}
Index: gcc.dg/torture/stackalign/setjmp-4.c
===================================================================
--- gcc.dg/torture/stackalign/setjmp-4.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/setjmp-4.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,39 @@
+/* { dg-do run } */
+
+#include <setjmp.h>
+
+extern void abort (void);
+
+jmp_buf buf;
+
+void raise0(void)
+{
+ __builtin_longjmp (buf, 1);
+}
+
+int execute(int cmd)
+{
+ int last = 0;
+
+ __builtin_setjmp (buf);
+
+ if (last == 0)
+ while (1)
+ {
+ last = 1;
+ raise0 ();
+ }
+
+ if (last == 0)
+ return 0;
+ else
+ return cmd;
+}
+
+int main(void)
+{
+ if (execute (1) == 0)
+ abort ();
+
+ return 0;
+}
Index: gcc.dg/torture/stackalign/sibcall-1.c
===================================================================
--- gcc.dg/torture/stackalign/sibcall-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/sibcall-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,35 @@
+/* { dg-do run } */
+
+extern int ok (int);
+extern void exit ();
+static int gen_x86_64_shrd (int);
+static int
+gen_x86_64_shrd(int a __attribute__ ((__unused__)))
+{
+ return 0;
+}
+
+extern int gen_x86_shrd_1 (int);
+extern void ix86_split_ashr (int);
+
+void
+ix86_split_ashr (int mode)
+{
+ (mode != 0
+ ? ok
+ : gen_x86_64_shrd) (0);
+}
+
+volatile int one = 1;
+int
+main (void)
+{
+ ix86_split_ashr (one);
+ return 1;
+}
+
+int
+ok (int i)
+{
+ exit (i);
+}
Index: gcc.dg/torture/stackalign/inline-1.c
===================================================================
--- gcc.dg/torture/stackalign/inline-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/inline-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,28 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+static void
+inline __attribute__((always_inline))
+foo (void)
+{
+ aligned i;
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+}
+
+int
+main()
+{
+ foo ();
+ return 0;
+}
Index: gcc.dg/torture/stackalign/inline-2.c
===================================================================
--- gcc.dg/torture/stackalign/inline-2.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/inline-2.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,46 @@
+/* { dg-do run } */
+
+#include <string.h>
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+void
+bar (char *p, int size)
+{
+ strncpy (p, "good", size);
+}
+
+static void
+inline __attribute__((always_inline))
+foo (int size)
+{
+ char *p = __builtin_alloca (size + 1);
+ aligned i;
+
+ bar (p, size);
+ if (strncmp (p, "good", size) != 0)
+ {
+#ifdef DEBUG
+ p[size] = '\0';
+ printf ("Failed: %s != good\n", p);
+#endif
+ abort ();
+ }
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+}
+
+int
+main()
+{
+ foo (5);
+ return 0;
+}
Index: gcc.dg/torture/stackalign/builtin-return-1.c
===================================================================
--- gcc.dg/torture/stackalign/builtin-return-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/builtin-return-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,34 @@
+/* PR middle-end/11151 */
+/* Originator: Andrew Church <gcczilla@achurch.org> */
+/* { dg-do run } */
+
+/* This used to fail on SPARC because the (undefined) return
+ value of 'bar' was overwriting that of 'foo'. */
+
+extern void abort(void);
+
+int foo(int n)
+{
+ return n+1;
+}
+
+int bar(int n)
+{
+ __builtin_return(__builtin_apply((void (*)(void))foo,
__builtin_apply_args(), 64));
+}
+
+char *g;
+
+int main(void)
+{
+ /* Allocate 64 bytes on the stack to make sure that __builtin_apply
+ can read at least 64 bytes above the return address. */
+ char dummy[64];
+
+ g = dummy;
+
+ if (bar(1) != 2)
+ abort();
+
+ return 0;
+}
Index: gcc.dg/torture/stackalign/pr16660-1.c
===================================================================
--- gcc.dg/torture/stackalign/pr16660-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/pr16660-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,15 @@
+/* { dg-do run } */
+
+void
+f ()
+{
+ unsigned long tmp[4] __attribute__((aligned(16)));
+ asm("movaps %%xmm0, (%0)" : : "r" (tmp) : "memory");
+}
+
+int
+main()
+{
+ f();
+ return 0;
+}
Index: gcc.dg/torture/stackalign/check.h
===================================================================
--- gcc.dg/torture/stackalign/check.h (.../fsf/trunk/gcc/testsuite)
(revision 0)
+++ gcc.dg/torture/stackalign/check.h
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,36 @@
+#include <stddef.h>
+#ifdef DEBUG
+#include <stdio.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" void abort (void);
+#else
+extern void abort (void);
+#endif
+
+int
+check_int (int *i, int align)
+{
+ *i = 20;
+ if ((((ptrdiff_t) i) & (align - 1)) != 0)
+ {
+#ifdef DEBUG
+ printf ("\nUnalign address (%d): %p!\n", align, i);
+#endif
+ abort ();
+ }
+ return *i;
+}
+
+void
+check (void *p, int align)
+{
+ if ((((ptrdiff_t) p) & (align - 1)) != 0)
+ {
+#ifdef DEBUG
+ printf ("\nUnalign address (%d): %p!\n", align, p);
+#endif
+ abort ();
+ }
+}
Index: gcc.dg/torture/stackalign/struct-1.c
===================================================================
--- gcc.dg/torture/stackalign/struct-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/struct-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,28 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+void
+foo (void)
+{
+ struct i
+ {
+ aligned i;
+ } i;
+
+ if (check_int (&i.i, __alignof__(i.i)) != i.i)
+ abort ();
+}
+
+int
+main()
+{
+ foo ();
+ return 0;
+}
Index: gcc.dg/torture/stackalign/pr16660-2.c
===================================================================
--- gcc.dg/torture/stackalign/pr16660-2.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/pr16660-2.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,12 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+typedef __SIZE_TYPE__ size_t;
+#define ALIGNMENT 256
+int main(void)
+{
+ int a[ALIGNMENT/sizeof(int)] __attribute__((aligned(ALIGNMENT)));
+ check (&a, ALIGNMENT);
+ return 0;
+}
Index: gcc.dg/torture/stackalign/pr16660-3.c
===================================================================
--- gcc.dg/torture/stackalign/pr16660-3.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/pr16660-3.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,14 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+typedef __SIZE_TYPE__ size_t;
+#define ALIGNMENT 256
+int main(void)
+{
+ int a[ALIGNMENT/sizeof(int)] __attribute__((aligned(ALIGNMENT)));
+ check (&a, ALIGNMENT);
+ int b[ALIGNMENT/sizeof(int)] __attribute__((aligned(ALIGNMENT)));
+ check (&b, ALIGNMENT);
+ return 0;
+}
Index: gcc.dg/torture/stackalign/non-local-goto-1.c
===================================================================
--- gcc.dg/torture/stackalign/non-local-goto-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/non-local-goto-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,55 @@
+/* { dg-do run } */
+
+extern void abort (void);
+
+int global;
+
+static void foo(void) __attribute__((noinline));
+
+static void foo(void)
+{
+ global = 1;
+}
+
+static void bar(void)
+{
+ foo ();
+}
+
+int execute(int cmd)
+{
+ __label__ start;
+
+ void raise(void)
+ {
+ goto start;
+ }
+
+ int last = -1;
+
+ bar ();
+
+ last = 0;
+
+start:
+
+ if (last == 0)
+ while (1)
+ {
+ last = 1;
+ raise ();
+ }
+
+ if (last == 0)
+ return 0;
+ else
+ return cmd;
+}
+
+int main(void)
+{
+ if (execute (1) == 0)
+ abort ();
+
+ return 0;
+}
Index: gcc.dg/torture/stackalign/non-local-goto-2.c
===================================================================
--- gcc.dg/torture/stackalign/non-local-goto-2.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/non-local-goto-2.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,56 @@
+/* { dg-do run } */
+
+extern void abort (void);
+
+int global;
+
+static void foo(void) __attribute__((noinline));
+
+static void foo(void)
+{
+ global = 1;
+}
+
+static void bar(void)
+{
+ foo ();
+ global = 0;
+}
+
+int execute(int cmd)
+{
+ __label__ start;
+
+ void raise(void)
+ {
+ goto start;
+ }
+
+ int last = -1;
+
+ bar ();
+
+ last = 0;
+
+start:
+
+ if (last == 0)
+ while (1)
+ {
+ last = 1;
+ raise ();
+ }
+
+ if (last == 0)
+ return 0;
+ else
+ return cmd;
+}
+
+int main(void)
+{
+ if (execute (1) == 0)
+ abort ();
+
+ return 0;
+}
Index: gcc.dg/torture/stackalign/builtin-apply-1.c
===================================================================
--- gcc.dg/torture/stackalign/builtin-apply-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/builtin-apply-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,9 @@
+/* PR 11184 */
+/* Origin: Dara Hazeghi <dhazeghi@yahoo.com> */
+
+void *
+objc_msg_sendv (char * arg_frame, void (*foo)())
+{
+ return __builtin_apply ( foo, arg_frame, 4);
+}
+
Index: gcc.dg/torture/stackalign/non-local-goto-3.c
===================================================================
--- gcc.dg/torture/stackalign/non-local-goto-3.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/non-local-goto-3.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,42 @@
+/* { dg-do run } */
+
+#ifndef NO_TRAMPOLINES
+extern void abort (void);
+
+int x(int a, int b)
+{
+ __label__ xlab;
+
+ void y(int b)
+ {
+ switch (b)
+ {
+ case 1: goto xlab;
+ case 2: goto xlab;
+ }
+ }
+
+ a = a + 2;
+ y (b);
+
+ xlab:
+ return a;
+}
+
+int main ()
+{
+ int i, j;
+
+ for (j = 1; j <= 2; ++j)
+ for (i = 1; i <= 2; ++i)
+ {
+ int a = x (j, i);
+ if (a != 2 + j)
+ abort ();
+ }
+
+ return 0;
+}
+#else
+int main() { return 0; }
+#endif
Index: gcc.dg/torture/stackalign/builtin-apply-2.c
===================================================================
--- gcc.dg/torture/stackalign/builtin-apply-2.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/builtin-apply-2.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,30 @@
+/* PR target/12503 */
+/* Origin: <pierre.nguyen-tuong@asim.lip6.fr> */
+
+/* Verify that __builtin_apply behaves correctly on targets
+ with pre-pushed arguments (e.g. SPARC). */
+
+/* { dg-do run } */
+
+
+#define INTEGER_ARG 5
+
+extern void abort(void);
+
+void foo(char *name, double d, double e, double f, int g)
+{
+ if (g != INTEGER_ARG)
+ abort();
+}
+
+void bar(char *name, ...)
+{
+ __builtin_apply(foo, __builtin_apply_args(), 64);
+}
+
+int main(void)
+{
+ bar("eeee", 5.444567, 8.90765, 4.567789, INTEGER_ARG);
+
+ return 0;
+}
Index: gcc.dg/torture/stackalign/non-local-goto-4.c
===================================================================
--- gcc.dg/torture/stackalign/non-local-goto-4.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/non-local-goto-4.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,38 @@
+/* { dg-do run } */
+
+extern void abort (void);
+extern void exit (int);
+
+#ifdef STACK_SIZE
+#define DEPTH ((STACK_SIZE) / 512 + 1)
+#else
+#define DEPTH 1000
+#endif
+
+#if ! defined (NO_LABEL_VALUES) && !defined (NO_TRAMPOLINES)
+int
+
+x(a)
+{
+ __label__ xlab;
+ void y(a)
+ {
+ if (a==0)
+ goto xlab;
+ y (a-1);
+ }
+ y (a);
+ xlab:;
+ return a;
+}
+#endif
+
+int
+main ()
+{
+#if ! defined (NO_LABEL_VALUES) && !defined (NO_TRAMPOLINES)
+ if (x (DEPTH) != DEPTH)
+ abort ();
+#endif
+ exit (0);
+}
Index: gcc.dg/torture/stackalign/alloca-1.c
===================================================================
--- gcc.dg/torture/stackalign/alloca-1.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/alloca-1.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,45 @@
+/* { dg-do run } */
+
+#include <string.h>
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+void
+bar (char *p, int size)
+{
+ strncpy (p, "good", size);
+}
+
+void
+foo (int size)
+{
+ char *p = __builtin_alloca (size + 1);
+ aligned i;
+
+ bar (p, size);
+ if (strncmp (p, "good", size) != 0)
+ {
+#ifdef DEBUG
+ p[size] = '\0';
+ printf ("Failed: %s != good\n", p);
+#endif
+ abort ();
+ }
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+}
+
+int
+main()
+{
+ foo (5);
+ return 0;
+}
Index: gcc.dg/torture/stackalign/builtin-apply-3.c
===================================================================
--- gcc.dg/torture/stackalign/builtin-apply-3.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/builtin-apply-3.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,31 @@
+/* PR middle-end/12210 */
+/* Origin: Ossadchy Yury A. <waspcoder@mail.ru> */
+
+/* This used to fail on i686 because the argument was not copied
+ to the right location by __builtin_apply after the direct call. */
+
+/* { dg-do run } */
+
+
+#define INTEGER_ARG 5
+
+extern void abort(void);
+
+void foo(int arg)
+{
+ if (arg != INTEGER_ARG)
+ abort();
+}
+
+void bar(int arg)
+{
+ foo(arg);
+ __builtin_apply(foo, __builtin_apply_args(), 16);
+}
+
+int main(void)
+{
+ bar(INTEGER_ARG);
+
+ return 0;
+}
Index: gcc.dg/torture/stackalign/non-local-goto-5.c
===================================================================
--- gcc.dg/torture/stackalign/non-local-goto-5.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/non-local-goto-5.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,11 @@
+/* { dg-do run } */
+
+#if !defined (NO_LABEL_VALUES) && !defined (NO_TRAMPOLINES)
+extern void abort (void);
+extern void exit (int);
+int s(i){if(i>0){__label__ l1;int f(int i){if(i==2)goto l1;return
0;}return f(i);l1:;}return 1;}
+int x(){return s(0)==1&&s(1)==0&&s(2)==1;}
+int main(){if(x()!=1)abort();exit(0);}
+#else
+int main(){ exit (0); }
+#endif
Index: gcc.dg/torture/stackalign/builtin-apply-4.c
===================================================================
--- gcc.dg/torture/stackalign/builtin-apply-4.c
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ gcc.dg/torture/stackalign/builtin-apply-4.c
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,29 @@
+/* PR tree-optimization/20076 */
+/* { dg-do run } */
+
+extern void abort (void);
+
+double
+foo (int arg)
+{
+ if (arg != 116)
+ abort();
+ return arg + 1;
+}
+
+inline double
+bar (int arg)
+{
+ foo (arg);
+ __builtin_return (__builtin_apply ((void (*) ()) foo,
+ __builtin_apply_args (), 16));
+}
+
+int
+main (int argc, char **argv)
+{
+ if (bar (116) != 117.0)
+ abort ();
+
+ return 0;
+}
Index: g++.dg/torture/stackalign/unwind-0.C
===================================================================
--- g++.dg/torture/stackalign/unwind-0.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/unwind-0.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,12 @@
+/* { dg-do run { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+
+#include "test-unwind.h"
+
+#ifndef __PIC__
+void __attribute__ ((noinline)) foo()
+{
+ ALTER_REGS();
+ // Throw the except and expect returning to main
+ throw 1;
+}
+#endif
Index: g++.dg/torture/stackalign/throw-1.C
===================================================================
--- g++.dg/torture/stackalign/throw-1.C (.../fsf/trunk/gcc/testsuite)
(revision 0)
+++ g++.dg/torture/stackalign/throw-1.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,61 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int t_align __attribute__((aligned(ALIGNMENT)));
+
+
+int global, global2;
+void bar()
+{
+ volatile t_align a = 1;
+ int i,j,k,l,m,n;
+ i=j=k=0;
+ for (i=0; i < global; i++)
+ for (j=0; j < i; j++)
+ for (k=0; k < j; k++)
+ for (l=0; l < k; l++)
+ for (m=0; m < l; m++)
+ for (n=0; n < m; n++)
+ global2 = k;
+ if (check_int ((int *) &a, __alignof__(a)) != a)
+ abort ();
+ throw 0;
+}
+
+void foo()
+{
+ bar();
+}
+
+int main()
+{
+ int ll = 1;
+ int i = 0,j = 1,k = 2,l = 3,m = 4,n = 5;
+ try {
+ for (; i < global; i++)
+ for (; j < i; j++)
+ for (; k < j; k++)
+ for (; l < k; l++)
+ for (; m < l; m++)
+ for (; n < m; n++)
+ global2 = k;
+ foo();
+ }
+ catch (...)
+ {
+ }
+ ll = i+j+k+l+m+n;
+ if (ll != 15)
+ {
+#ifdef DEBUG
+ printf("FAIL: sum %d != 15\n", ll);
+#endif
+ abort();
+ }
+ return 0;
+}
Index: g++.dg/torture/stackalign/unwind-1.C
===================================================================
--- g++.dg/torture/stackalign/unwind-1.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/unwind-1.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,16 @@
+/* { dg-do run { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+
+#include "test-unwind.h"
+
+#ifndef __PIC__
+/* Test situation 1: Stack really realign without DRAP */
+void __attribute__ ((noinline))
+foo ()
+{
+ int __attribute__ ((aligned(64))) a=1;
+ if (check_int (&a, __alignof__(a)) != a)
+ abort ();
+ ALTER_REGS();
+ throw a;
+}
+#endif
Index: g++.dg/torture/stackalign/throw-2.C
===================================================================
--- g++.dg/torture/stackalign/throw-2.C (.../fsf/trunk/gcc/testsuite)
(revision 0)
+++ g++.dg/torture/stackalign/throw-2.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,52 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int t_align __attribute__((aligned(ALIGNMENT)));
+
+
+int global, global2;
+void bar()
+{
+ volatile t_align a = 1;
+ int i,j,k;
+ i=j=k=0;
+ for (i=0; i < global; i++)
+ for (j=0; j < i; j++)
+ global2 = k;
+ if (check_int ((int *) &a, __alignof__(a)) != a)
+ abort ();
+ throw 0;
+}
+
+int main()
+{
+ int ll = 1;
+ int i = 0,j = 1,k = 2,l = 3,m = 4,n = 5;
+ try {
+ for (; i < global; i++)
+ for (; j < i; j++)
+ for (; k < j; k++)
+ for (; l < k; l++)
+ for (; m < l; m++)
+ for (; n < m; n++)
+ global2 = k;
+ bar ();
+ }
+ catch (...)
+ {
+ }
+ ll = i+j+k+l+m+n;
+ if (ll != 15)
+ {
+#ifdef DEBUG
+ printf("FAIL: sum %d != 15\n", ll);
+#endif
+ abort();
+ }
+ return 0;
+}
Index: g++.dg/torture/stackalign/throw-3.C
===================================================================
--- g++.dg/torture/stackalign/throw-3.C (.../fsf/trunk/gcc/testsuite)
(revision 0)
+++ g++.dg/torture/stackalign/throw-3.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,52 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int t_align __attribute__((aligned(ALIGNMENT)));
+
+
+int global, global2;
+void bar()
+{
+ volatile t_align a = 1;
+ int i,j,k;
+ i=j=k=0;
+ for (i=0; i < global; i++)
+ for (j=0; j < i; j++)
+ global2 = k;
+ throw 0;
+ if (check_int ((int *) &a, __alignof__(a)) != a)
+ abort ();
+}
+
+int main()
+{
+ int ll = 1;
+ int i = 0,j = 1,k = 2,l = 3,m = 4,n = 5;
+ try {
+ for (; i < global; i++)
+ for (; j < i; j++)
+ for (; k < j; k++)
+ for (; l < k; l++)
+ for (; m < l; m++)
+ for (; n < m; n++)
+ global2 = k;
+ bar ();
+ }
+ catch (...)
+ {
+ }
+ ll = i+j+k+l+m+n;
+ if (ll != 15)
+ {
+#ifdef DEBUG
+ printf("FAIL: sum %d != 15\n", ll);
+#endif
+ abort();
+ }
+ return 0;
+}
Index: g++.dg/torture/stackalign/unwind-2.C
===================================================================
--- g++.dg/torture/stackalign/unwind-2.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/unwind-2.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,29 @@
+/* { dg-do run { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+
+#include "test-unwind.h"
+
+#ifndef __PIC__
+/* Test situation 2: stack really realign with DRAP reg CX */
+void __attribute__ ((noinline))
+foo ()
+{
+ int __attribute__ ((aligned(64))) a=4;
+ char * s = (char *) __builtin_alloca (a + 1);
+
+ copy (s, a);
+ if (strncmp (s, "good", a) != 0)
+ {
+#ifdef DEBUG
+ s[a] = '\0';
+ printf ("Failed: %s != good\n", s);
+#endif
+ abort ();
+ }
+
+ if (check_int (&a, __alignof__(a)) != a)
+ abort ();
+
+ ALTER_REGS();
+ throw a;
+}
+#endif
Index: g++.dg/torture/stackalign/throw-4.C
===================================================================
--- g++.dg/torture/stackalign/throw-4.C (.../fsf/trunk/gcc/testsuite)
(revision 0)
+++ g++.dg/torture/stackalign/throw-4.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,54 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int t_align __attribute__((aligned(ALIGNMENT)));
+
+
+int global, global2;
+void bar()
+{
+ volatile t_align a = 1;
+ int i,j,k;
+ i=j=k=0;
+ for (i=0; i < global; i++)
+ for (j=0; j < i; j++)
+ {
+ global2 = k;
+ throw 0;
+ }
+ if (check_int ((int *) &a, __alignof__(a)) != a)
+ abort ();
+}
+
+int main()
+{
+ int ll = 1;
+ int i = 0,j = 1,k = 2,l = 3,m = 4,n = 5;
+ try {
+ for (; i < global; i++)
+ for (; j < i; j++)
+ for (; k < j; k++)
+ for (; l < k; l++)
+ for (; m < l; m++)
+ for (; n < m; n++)
+ global2 = k;
+ bar ();
+ }
+ catch (...)
+ {
+ }
+ ll = i+j+k+l+m+n;
+ if (ll != 15)
+ {
+#ifdef DEBUG
+ printf("FAIL: sum %d != 15\n", ll);
+#endif
+ abort();
+ }
+ return 0;
+}
Index: g++.dg/torture/stackalign/unwind-3.C
===================================================================
--- g++.dg/torture/stackalign/unwind-3.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/unwind-3.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,35 @@
+/* { dg-do run { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+
+#include "test-unwind.h"
+
+#ifndef __PIC__
+/* Test situation 3: Stack realign really happen with DRAP reg DI */
+void __attribute__ ((noinline)) __attribute__ ((regparm(3)))
+bar (int arg1, int arg2, int arg3)
+{
+ int __attribute__ ((aligned(64))) a=1;
+ char * s = (char *) __builtin_alloca (arg3 + 1);
+
+ copy (s, arg3);
+ if (strncmp (s, "good", arg3) != 0)
+ {
+#ifdef DEBUG
+ s[arg3] = '\0';
+ printf ("Failed: %s != good\n", s);
+#endif
+ abort ();
+ }
+
+ if (check_int (&a, __alignof__(a)) != a)
+ abort ();
+
+ ALTER_REGS();
+ throw arg1+arg2+arg3+a;
+}
+
+void
+foo()
+{
+ bar (1,2,3);
+}
+#endif
Index: g++.dg/torture/stackalign/unwind-4.C
===================================================================
--- g++.dg/torture/stackalign/unwind-4.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/unwind-4.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,17 @@
+/* { dg-do run { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+
+#include "test-unwind.h"
+
+#ifndef __PIC__
+volatile int __attribute__ ((aligned(32))) g_a=1;
+/* Test situation 4: no Drap and stack realign doesn't really happen */
+void __attribute__ ((noinline))
+foo()
+{
+ int i;
+ ALTER_REGS();
+ for (i=0; i < 10; i++)
+ g_a++;
+ throw g_a;
+}
+#endif
Index: g++.dg/torture/stackalign/eh-inline-1.C
===================================================================
--- g++.dg/torture/stackalign/eh-inline-1.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/eh-inline-1.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,39 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+class Base {};
+
+struct A : virtual public Base
+{
+ A() {}
+};
+
+struct B {};
+
+static void
+inline __attribute__((always_inline))
+foo (void) throw (B,A)
+{
+ aligned i;
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+ throw A();
+}
+
+int
+main()
+{
+ try { foo (); }
+ catch (A& a) { }
+ return 0;
+}
Index: g++.dg/torture/stackalign/unwind-5.C
===================================================================
--- g++.dg/torture/stackalign/unwind-5.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/unwind-5.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,31 @@
+/* { dg-do run { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+
+#include "test-unwind.h"
+
+#ifndef __PIC__
+double g_f=1.0;
+/* Test situation 5: Stack realign dosn't really happen with DRAP reg
CX */
+void __attribute__ ((noinline)) __attribute__ ((regparm(2)))
+bar(int arg1, int arg2, int arg3, int arg4)
+{
+ char * s = (char *) __builtin_alloca (arg4 + 1);
+
+ copy (s, arg4);
+ if (strncmp (s, "good", arg4) != 0)
+ {
+#ifdef DEBUG
+ s[arg4] = '\0';
+ printf ("Failed: %s != good\n", s);
+#endif
+ abort ();
+ }
+ ALTER_REGS();
+ if (g_f) throw arg1+arg2+arg3+ g_f;
+}
+
+void __attribute__((noinline))
+foo()
+{
+ bar(1,2,3,4);
+}
+#endif
Index: g++.dg/torture/stackalign/eh-inline-2.C
===================================================================
--- g++.dg/torture/stackalign/eh-inline-2.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/eh-inline-2.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,58 @@
+/* { dg-do run } */
+
+#include <string.h>
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+void
+bar (char *p, int size)
+{
+ strncpy (p, "good", size);
+}
+
+class Base {};
+
+struct A : virtual public Base
+{
+ A() {}
+};
+
+struct B {};
+
+static void
+inline __attribute__((always_inline))
+foo (int size) throw (B,A)
+{
+ char *p = (char *) __builtin_alloca (size + 1);
+ aligned i;
+
+ bar (p, size);
+ if (strncmp (p, "good", size) != 0)
+ {
+#ifdef DEBUG
+ p[size] = '\0';
+ printf ("Failed: %s != good\n", p);
+#endif
+ abort ();
+ }
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+
+ throw A();
+}
+
+int
+main()
+{
+ try { foo (5); }
+ catch (A& a) { }
+ return 0;
+}
Index: g++.dg/torture/stackalign/unwind-6.C
===================================================================
--- g++.dg/torture/stackalign/unwind-6.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/unwind-6.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,31 @@
+/* { dg-do run { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+
+#include "test-unwind.h"
+
+#ifndef __PIC__
+double g_f=1.0;
+/* Test situation 6: Stack realign dosn't really happen with DRAP reg
DI */
+void __attribute__ ((noinline)) __attribute__ ((regparm(3)))
+bar(int arg1, int arg2, int arg3, int arg4)
+{
+ char * s = (char *) __builtin_alloca (arg4 + 1);
+
+ copy (s, arg4);
+ if (strncmp (s, "good", arg4) != 0)
+ {
+#ifdef DEBUG
+ s[arg4] = '\0';
+ printf ("Failed: %s != good\n", s);
+#endif
+ abort ();
+ }
+ ALTER_REGS();
+ if (g_f) throw arg1+arg2+arg3+ g_f;
+}
+
+void __attribute__((noinline))
+foo()
+{
+ bar(1,2,3,4);
+}
+#endif
Index: g++.dg/torture/stackalign/eh-vararg-1.C
===================================================================
--- g++.dg/torture/stackalign/eh-vararg-1.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/eh-vararg-1.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,73 @@
+/* { dg-do run } */
+
+#include <string.h>
+#include <stdarg.h>
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+void
+bar (char *p, int size)
+{
+ strncpy (p, "good", size);
+}
+
+class Base {};
+
+struct A : virtual public Base
+{
+ A() {}
+};
+
+struct B {};
+
+void
+foo (const char *fmt, ...) throw (B,A)
+{
+ va_list arg;
+ char *p;
+ aligned i;
+ int size;
+ double x;
+
+ va_start (arg, fmt);
+ size = va_arg (arg, int);
+ if (size != 5)
+ abort ();
+ p = (char *) __builtin_alloca (size + 1);
+
+ x = va_arg (arg, double);
+ if (x != 5.0)
+ abort ();
+
+ bar (p, size);
+ if (strncmp (p, "good", size) != 0)
+ {
+#ifdef DEBUG
+ p[size] = '\0';
+ printf ("Failed: %s != good\n", p);
+#endif
+ abort ();
+ }
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+
+ throw A();
+
+ va_end (arg);
+}
+
+int
+main()
+{
+ try { foo ("foo", 5, 5.0); }
+ catch (A& a) { }
+ return 0;
+}
Index: g++.dg/torture/stackalign/eh-vararg-2.C
===================================================================
--- g++.dg/torture/stackalign/eh-vararg-2.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/eh-vararg-2.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,78 @@
+/* { dg-do run } */
+
+#include <string.h>
+#include <stdarg.h>
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+void
+bar (char *p, int size)
+{
+ strncpy (p, "good", size);
+}
+
+class Base {};
+
+struct A : virtual public Base
+{
+ A() {}
+};
+
+struct B {};
+
+void
+test (va_list arg) throw (B,A)
+{
+ char *p;
+ aligned i;
+ int size;
+ double x;
+
+ size = va_arg (arg, int);
+ if (size != 5)
+ abort ();
+
+ p = (char *) __builtin_alloca (size + 1);
+
+ x = va_arg (arg, double);
+ if (x != 5.0)
+ abort ();
+
+ bar (p, size);
+ if (strncmp (p, "good", size) != 0)
+ {
+#ifdef DEBUG
+ p[size] = '\0';
+ printf ("Failed: %s != good\n", p);
+#endif
+ abort ();
+ }
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+
+ throw A();
+}
+
+void
+foo (const char *fmt, ...)
+{
+ va_list arg;
+ va_start (arg, fmt);
+ test (arg);
+ va_end (arg);
+}
+int
+main()
+{
+ try { foo ("foo", 5, 5.0); }
+ catch (A& a) { }
+ return 0;
+}
Index: g++.dg/torture/stackalign/eh-fastcall-1.C
===================================================================
--- g++.dg/torture/stackalign/eh-fastcall-1.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/eh-fastcall-1.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,43 @@
+/* { dg-do run { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+class Base {};
+
+struct A : virtual public Base
+{
+ A() {}
+};
+
+struct B {};
+
+__attribute__ ((fastcall))
+void
+foo (int j, int k, int m, int n, int o) throw (B,A)
+{
+ aligned i;
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+
+ if (i != 20 || j != 1 || k != 2 || m != 3 || n != 4 || o != 5)
+ abort ();
+
+ throw A();
+}
+
+int
+main()
+{
+ try { foo (1, 2, 3, 4, 5); }
+ catch (A& a) { }
+ return 0;
+}
Index: g++.dg/torture/stackalign/check.h
===================================================================
--- g++.dg/torture/stackalign/check.h (.../fsf/trunk/gcc/testsuite)
(revision 0)
+++ g++.dg/torture/stackalign/check.h
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,36 @@
+#include <stddef.h>
+#ifdef DEBUG
+#include <stdio.h>
+#endif
+
+#ifdef __cplusplus
+extern "C" void abort (void);
+#else
+extern void abort (void);
+#endif
+
+int
+check_int (int *i, int align)
+{
+ *i = 20;
+ if ((((ptrdiff_t) i) & (align - 1)) != 0)
+ {
+#ifdef DEBUG
+ printf ("\nUnalign address (%d): %p!\n", align, i);
+#endif
+ abort ();
+ }
+ return *i;
+}
+
+void
+check (void *p, int align)
+{
+ if ((((ptrdiff_t) p) & (align - 1)) != 0)
+ {
+#ifdef DEBUG
+ printf ("\nUnalign address (%d): %p!\n", align, p);
+#endif
+ abort ();
+ }
+}
Index: g++.dg/torture/stackalign/eh-alloca-1.C
===================================================================
--- g++.dg/torture/stackalign/eh-alloca-1.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/eh-alloca-1.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,57 @@
+/* { dg-do run } */
+
+#include <string.h>
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+void
+bar (char *p, int size)
+{
+ strncpy (p, "good", size);
+}
+
+class Base {};
+
+struct A : virtual public Base
+{
+ A() {}
+};
+
+struct B {};
+
+void
+foo (int size) throw (B,A)
+{
+ char *p = (char*) __builtin_alloca (size + 1);
+ aligned i;
+
+ bar (p, size);
+ if (strncmp (p, "good", size) != 0)
+ {
+#ifdef DEBUG
+ p[size] = '\0';
+ printf ("Failed: %s != good\n", p);
+#endif
+ abort ();
+ }
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+
+ throw A();
+}
+
+int
+main()
+{
+ try { foo (5); }
+ catch (A& a) { }
+ return 0;
+}
Index: g++.dg/torture/stackalign/test-unwind.h
===================================================================
--- g++.dg/torture/stackalign/test-unwind.h
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/test-unwind.h
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,133 @@
+#include <string.h>
+#include "check.h"
+
+#ifdef __cplusplus
+extern "C" void abort (void);
+#else
+extern void abort (void);
+#endif
+
+extern void foo(void);
+
+#define INIT_EDI 1
+#define INIT_ESI 2
+#define INIT_EBX 3
+
+/* Set DI/SI/BX to wrong value
+ Use following template so that RA will save/restore callee
+ save registers in prologue/epilogue */
+#define ALTER_REGS() \
+ { \
+ int dummy; \
+ __asm__ __volatile__ (\
+ "movl %1, %0" : "=D" (dummy) : "i" (-INIT_EDI)\
+ );\
+ __asm__ __volatile__ (\
+ "movl %1, %0" : "=S" (dummy) : "i" (-INIT_ESI)\
+ );\
+ __asm__ __volatile__ (\
+ "movl %1, %0" : "=b" (dummy) : "i" (-INIT_EBX)\
+ );\
+ }
+
+#ifdef __PIC__
+int
+main ()
+{
+ return 0;
+}
+#else
+void __attribute__ ((noinline))
+copy (char *p, int size)
+{
+ strncpy (p, "good", size);
+}
+
+int g_edi=INIT_EDI, g_esi=INIT_ESI, g_ebx=INIT_EBX;
+int g_ebp, g_ebp_save, g_esp, g_esp_save;
+int n_error;
+
+int
+main()
+{
+ int dummy;
+ // Init registers to correct value.
+ // Use following template so that RA will save/restore callee
+ // save registers in prologue/epilogue
+ __asm__ __volatile__ (
+ "movl %1, %0"
+ : "=D" (dummy)
+ : "i" (INIT_EDI)
+ );
+ __asm__ __volatile__ (
+ "movl %1, %0"
+ : "=S" (dummy)
+ : "i" (INIT_ESI)
+ );
+ __asm__ __volatile__ (
+ "movl %1, %0"
+ : "=b" (dummy)
+ : "i" (INIT_EBX)
+ );
+ __asm__ __volatile__ (
+ "movl %ebp, g_ebp_save\n\t"
+ "movl %esp, g_esp_save\n\t"
+ );
+ try {
+ foo();
+ }
+ catch (...)
+ {
+ }
+
+ // Get DI/SI/BX register value after exception caught
+ __asm__ __volatile__ (
+ "movl %edi, g_edi\n\t"
+ "movl %esi, g_esi\n\t"
+ "movl %ebx, g_ebx\n\t"
+ "movl %ebp, g_ebp\n\t"
+ "movl %esp, g_esp\n\t"
+ );
+
+ // Check if DI/SI/BX register value are the same as before
calling
+ // foo.
+ if (g_edi != INIT_EDI)
+ {
+ n_error++;
+#ifdef DEBUG
+ printf("edi=%d, correct value:%d\n", g_edi, INIT_EDI);
+#endif
+ }
+ if (g_esi != INIT_ESI)
+ {
+ n_error++;
+#ifdef DEBUG
+ printf("esi=%d, correct value:%d\n", g_esi, INIT_ESI);
+#endif
+ }
+ if (g_ebx != INIT_EBX)
+ {
+ n_error++;
+#ifdef DEBUG
+ printf("ebx=%d, correct value:%d\n", g_ebx, INIT_EBX);
+#endif
+ }
+ if (g_ebp != g_ebp_save)
+ {
+ n_error++;
+#ifdef DEBUG
+ printf("ebp=0x%x, correct value:0x%x\n", g_ebp,
g_ebp_save);
+#endif
+ }
+ if (g_esp != g_esp_save)
+ {
+ n_error++;
+#ifdef DEBUG
+ printf("esp=0x%x, correct value:0x%x\n", g_esp,
g_esp_save);
+#endif
+ }
+ if (n_error !=0)
+ abort();
+ return 0;
+}
+#endif
Index: g++.dg/torture/stackalign/eh-global-1.C
===================================================================
--- g++.dg/torture/stackalign/eh-global-1.C
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/eh-global-1.C
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,39 @@
+/* { dg-do run } */
+
+#include "check.h"
+
+#ifndef ALIGNMENT
+#define ALIGNMENT 64
+#endif
+
+typedef int aligned __attribute__((aligned(ALIGNMENT)));
+
+int global;
+
+class Base {};
+
+struct A : virtual public Base
+{
+ A() {}
+};
+
+struct B {};
+
+void
+foo (void) throw (B,A)
+{
+ aligned i;
+
+ if (check_int (&i, __alignof__(i)) != i)
+ abort ();
+
+ throw A();
+}
+
+int
+main()
+{
+ try { foo (); }
+ catch (A& a) { }
+ return 0;
+}
Index: g++.dg/torture/stackalign/stackalign.exp
===================================================================
--- g++.dg/torture/stackalign/stackalign.exp
(.../fsf/trunk/gcc/testsuite) (revision 0)
+++ g++.dg/torture/stackalign/stackalign.exp
(.../branches/stack/gcc/testsuite) (revision 1877)
@@ -0,0 +1,39 @@
+# Copyright (C) 2008
+# Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>.
+
+# This harness is for tests that should be run at all optimisation
levels.
+
+load_lib g++-dg.exp
+
+# Only run on targets which support automatic stack alignment.
+if { ![check_effective_target_automatic_stack_alignment] } then {
+ return
+}
+
+set additional_flags ""
+if { [istarget i?86*-*-*] || [istarget x86_64-*-*] } then {
+ lappend additional_flags "-mstackrealign"
+ lappend additional_flags "-mpreferred-stack-boundary=5"
+}
+
+dg-init
+gcc-dg-runtest [lsort [glob $srcdir/$subdir/*.C]] $additional_flags
+if { [check_effective_target_fpic] } then {
+ lappend additional_flags "-fpic"
+ gcc-dg-runtest [lsort [glob $srcdir/$subdir/*.C]] $additional_flags
+}
+dg-finish
Index: lib/target-supports.exp
===================================================================
--- lib/target-supports.exp (.../fsf/trunk/gcc/testsuite)
(revision 1877)
+++ lib/target-supports.exp (.../branches/stack/gcc/testsuite)
(revision 1877)
@@ -1693,10 +1693,6 @@
verbose "check_effective_target_unaligned_stack: using cached
result" 2
} else {
set et_unaligned_stack_saved 0
- if { ( [istarget i?86-*-*] || [istarget x86_64-*-*] )
- && (! [istarget *-*-darwin*] ) } {
- set et_unaligned_stack_saved 1
- }
}
verbose "check_effective_target_unaligned_stack: returning
$et_unaligned_stack_saved" 2
return $et_unaligned_stack_saved
@@ -2296,3 +2292,14 @@
$contents [add_options_for_c99_runtime ""]
}]
}
+
+# Return 1 if the target supports automatic stack alignment.
+
+proc check_effective_target_automatic_stack_alignment { } {
+ if { [istarget i?86*-*-*]
+ || [istarget x86_64-*-*] } then {
+ return 1
+ } else {
+ return 0
+ }
+}
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