Bug 40257 - [4.5 Regression] Revision 147852 miscompiled 252.eon in SPEC CPU 2K
Summary: [4.5 Regression] Revision 147852 miscompiled 252.eon in SPEC CPU 2K
Status: RESOLVED WONTFIX
Alias: None
Product: gcc
Classification: Unclassified
Component: middle-end (show other bugs)
Version: 4.5.0
: P3 normal
Target Milestone: ---
Assignee: Not yet assigned to anyone
URL:
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Blocks:
 
Reported: 2009-05-26 14:25 UTC by H.J. Lu
Modified: 2009-05-27 17:53 UTC (History)
2 users (show)

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Description H.J. Lu 2009-05-26 14:25:58 UTC 
On Linux/ia32, revision 147852

http://gcc.gnu.org/ml/gcc-cvs/2009-05/msg00829.html

miscompiled 252.eon in SPEC CPU 2K at -O2:

Running Benchmarks
  Running 252.eon ref base o2x87 default
*** Miscompare of pixels_out.kajiya, see /export/gnu/import/rrs/spec/2000/spec/benchspec/CINT2000/252.eon/run/00000002/pixels_out.kajiya.mis
Comment 1 H.J. Lu 2009-05-27 17:53:36 UTC 
Adding -mpc64 fixed the problem.