http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49414
--- Comment #2 from Easwaran Raman <eraman at google dot com> 2011-06-15 16:58:57 UTC --- The DSE opportunity doesn't arise in ia32 since the struct is returned through stack. Is the following patch restricting the test to x86_64 ok? (I have tested that it works correctly on x86_64, but don't know how to test it gets excluded on other platforms) =================================================================== --- gcc/testsuite/gcc.dg/pr44194-1.c (revision 175063) +++ gcc/testsuite/gcc.dg/pr44194-1.c (working copy) @@ -1,4 +1,4 @@ -/* { dg-do compile } */ +/* { dg-do compile { target x86_64-*-* } } */ /* { dg-options "-O2 -fdump-rtl-dse1" } */ #include <stdint.h>