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[Bug middle-end/44185] New: [4.6 regression] New prefetch test failures
- From: "hjl dot tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 18 May 2010 02:40:12 -0000
- Subject: [Bug middle-end/44185] New: [4.6 regression] New prefetch test failures
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
On Linux/ia32, revision 159516 gave:
FAIL: gcc.dg/tree-ssa/prefetch-6.c scan-assembler-times prefetcht 5
FAIL: gcc.dg/tree-ssa/prefetch-6.c scan-tree-dump-times aprefetch "Issued
prefetch" 5
FAIL: gcc.dg/tree-ssa/prefetch-7.c scan-assembler-times mfence 2
FAIL: gcc.dg/tree-ssa/prefetch-7.c scan-assembler-times movnti 2
FAIL: gcc.dg/tree-ssa/prefetch-7.c scan-assembler-times prefetchnta 2
FAIL: gcc.dg/tree-ssa/prefetch-7.c scan-assembler-times prefetcht 1
FAIL: gcc.dg/tree-ssa/prefetch-7.c scan-assembler-times prefetchw 5
FAIL: gcc.dg/tree-ssa/prefetch-7.c scan-tree-dump-times aprefetch "Issued
nontemporal prefetch" 3
FAIL: gcc.dg/tree-ssa/prefetch-7.c scan-tree-dump-times aprefetch "Issued
prefetch" 5
FAIL: gcc.dg/tree-ssa/prefetch-7.c scan-tree-dump-times aprefetch "a
nontemporal store" 2
FAIL: gcc.dg/tree-ssa/prefetch-7.c scan-tree-dump-times optimized "={nt}" 2
FAIL: gcc.dg/tree-ssa/prefetch-7.c scan-tree-dump-times optimized
"__builtin_ia32_mfence" 2
FAIL: gcc.dg/tree-ssa/prefetch-7.c scan-tree-dump-times optimized
"builtin_prefetch" 8
Revision 159511 is OK. Revisions 159514/159515:
http://gcc.gnu.org/ml/gcc-cvs/2010-05/msg00566.html
http://gcc.gnu.org/ml/gcc-cvs/2010-05/msg00567.html
may be the cause.
--
Summary: [4.6 regression] New prefetch test failures
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: hjl dot tools at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44185