[Bug middle-end/53959] New: [4.8 Regression] 189.lucas in SPEC CPU 2000 miscompiled by LTO
hjl.tools at gmail dot com
gcc-bugzilla@gcc.gnu.org
Sat Jul 14 02:15:00 GMT 2012
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53959
Bug #: 53959
Summary: [4.8 Regression] 189.lucas in SPEC CPU 2000
miscompiled by LTO
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: hjl.tools@gmail.com
CC: rguenth@gcc.gnu.org
On Linux/x86-64, revision 189453:
http://gcc.gnu.org/ml/gcc-cvs/2012-07/msg00357.html
caused:
Compiling Binaries
Building 189.lucas ref base lto default
Setting Up Run Directories
Setting up 189.lucas ref base lto default: created
Running Benchmarks
Running 189.lucas ref base lto default
*** Miscompare of lucas2.out, see
/export/gnu/import/git/gcc-regression/spec/200
0/spec/benchspec/CFP2000/189.lucas/run/00000002/lucas2.out.mis
with
-O2 -ffast-math -fwhole-program -flto=jobserver -fuse-linker-plugin
-DSPEC_CPU2000_LP64
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