------- Comment #13 from hjl dot tools at gmail dot com 2010-03-09 22:39 ------- (In reply to comment #9) > (In reply to comment #8) > > Created an attachment (id=20044) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20044&action=view) [edit] > > gcc44-pr43290-2.patch > > > > Another fix. Wonder why that insn is marked as frame related at all, for > > the > > drap saving the spill (and restore) generated by > > ix86_expand_prologue/ix86_expand_epilogue should be the canonical one, after > > all where the vDRAP was spilled to is something that could be clobbered > > before > > the epilogue if vDRAP starts living in the register again, etc. > > > > There may be a reason to do so at the time. If there are no > regressions in gcc testsuite, it probably is OK not to mark > drap as frame related. >
It is for PR 36728. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43290
