------- Comment #5 from kkojima at gcc dot gnu dot org 2009-05-14 00:12 ------- Created an attachment (id=17860) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=17860&action=view) A patch
A binary search on trunk shows me that the patch in r146829 and its follow-up r146988 fix the issue. See http://gcc.gnu.org/ml/gcc-patches/2009-04/msg02097.html for r146829 changes. With these patches, 4.3 compiler emits "bf .L5" instead of "bf/s .L5" even with -O1. So it seems that this is an rtl-optimization issue which is fixed on trunk recently. I'm not sure about the backport to the release branches because that patch is originally for PR 34415 which was also a mips 4.3 regression and solved only on the trunk (4.4 at that moment). I've attached an r146829+r146988 patch tuned for gcc-4_3-branch. Could you try it? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40105
