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authorJan Hubicka <jh@suse.cz>2006-08-25 22:39:48 +0200
committerPaul Brook <pbrook@gcc.gnu.org>2006-08-25 20:39:48 +0000
commit02709c7f68600ee88d126671b06012f8e90769b5 (patch)
treeb3b575a9ef86e73fef06c40c68fe64f9711ea03e
parent90d3ff1c724fa47fb5d348f9f9eb0d12c1fda06b (diff)
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re PR target/28621 (SIGSEGV in set_fast_math () at -Os)
2006-08-25 Jan Hubicka <jh@suse.cz> PR target/28621 * config/i386/crtfastmath.c (set_fast_math): Force stack alignment. From-SVN: r116431
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/config/i386/crtfastmath.c6
2 files changed, 11 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 81bc0d7..865d015 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2006-08-25 Jan Hubicka <jh@suse.cz>
+
+ PR target/28621
+ * config/i386/crtfastmath.c (set_fast_math): Force stack alignment.
+
2006-08-25 Alan Modra <amodra@bigpond.net.au>
PR target/27075
diff --git a/gcc/config/i386/crtfastmath.c b/gcc/config/i386/crtfastmath.c
index fad1d57..08ddaff 100644
--- a/gcc/config/i386/crtfastmath.c
+++ b/gcc/config/i386/crtfastmath.c
@@ -38,6 +38,12 @@
#define SSE (1 << 25)
static void __attribute__((constructor))
+#ifndef __x86_64__
+/* The i386 ABI only requires 4-byte stack alignment, so this is neccessary
+ to make sure the fxsave struct gets correct alignment.
+ See PR27537 and PR28621. */
+__attribute__ ((force_align_arg_pointer))
+#endif
set_fast_math (void)
{
#ifndef __x86_64__