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[Bug lto/49302] [4.7 Regression] FAIL: gcc.dg/lto/20110201-1 c_lto_20110201-1_0.o-c_lto_20110201-1_0.o
- From: "wschmidt at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 7 Jun 2011 13:16:34 +0000
- Subject: [Bug lto/49302] [4.7 Regression] FAIL: gcc.dg/lto/20110201-1 c_lto_20110201-1_0.o-c_lto_20110201-1_0.o
- Auto-submitted: auto-generated
- References: <bug-49302-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49302
William J. Schmidt <wschmidt at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |bergner at gcc dot gnu.org
--- Comment #5 from William J. Schmidt <wschmidt at gcc dot gnu.org> 2011-06-07 13:16:12 UTC ---
(In reply to comment #4)
> Well, it fails at the -O0 (non-LTO) link. Hmm. The testcase is from PR47566.
OK. So the LTO writer assumed -O2 -ffast-math, causing the pow calls to be
generated, but at -O0 the gimple expand code for pow was skipped.
I _think_ that