Submitted By: Alexander E. Patrakov
Date: 2006-12-11
Initial Package Version: 4.1.1
Upstream Status: backport
Origin: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28621
Description: Fix crash of programs compiled with -Os -ffast-math
(affects procps on the LiveCD)
--- gcc-4.1.1/gcc/config/i386/i386.c
+++ gcc-4.1.1/gcc/config/i386/i386.c
@@ -1502,12 +1502,10 @@
     }
 
   /* Validate -mpreferred-stack-boundary= value, or provide default.
-     The default of 128 bits is for Pentium III's SSE __m128, but we
-     don't want additional code to keep the stack aligned when
-     optimizing for code size.  */
-  ix86_preferred_stack_boundary = (optimize_size
-				   ? TARGET_64BIT ? 128 : 32
-				   : 128);
+     The default of 128 bits is for Pentium III's SSE __m128, We can't
+     change it because of optimize_size.  Otherwise, we can't mix object
+     files compiled with -Os and -On.  */
+  ix86_preferred_stack_boundary = 128;
   if (ix86_preferred_stack_boundary_string)
     {
       i = atoi (ix86_preferred_stack_boundary_string);