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

gcc/ChangeLog

+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

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__