http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52760
Bug #: 52760
Summary: Revision 185599 causes miscompare on sphinx3
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected], [email protected]
Host: powerpc64-linux
Target: powerpc64-linux
Build: powerpc64-linux
Created attachment 27025
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27025
testcase
The fix for pr52636 (r185599) introduced a miscompare for cpu2006 benchmark
482.sphinx3 on PowerPC. Attatched testcase can be run and shows incorrect
results.
temp/sphinx3> gcc -m64 -O3 -mcpu=power7 junk.c
temp/sphinx3> a.out
Result = 0101 0303 0505 0707
Output should be:
Result = 0100 0302 0504 0706
