https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77621
--- Comment #14 from Uroš Bizjak <ubizjak at gmail dot com> --- (In reply to Richard Biener from comment #13) > Created attachment 39656 [details] > patch for the ICE +/* { dg-additional-options "-march=i686 -mtune=atom -msse2" { target ia32 } } */ You can use /* { dg-additional-options "-mtune=atom -msse2" { target i?86-*-* x86_64-*-* } } */ and the test will also break on x86_64.