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Author SHA1 Message Date
Nico Weber f3fc748308 Try to fix UNRESOLVED: LLVM :: CodeGen/AArch64/arm64-regress-opt-cmp.s on bots. 
This test used to write a .s file until r266971 fixed that.  But on most bots,
the .s file still exists.  Add an rm statement to clean up the bots.  In a few
days, this statement can go away again.

llvm-svn: 267095
 2016-04-22 01:08:56 +00:00
Evgeny Astigeevich fc972f1451 Updated a test not to produce an empty s-file. 
llvm-svn: 266971
 2016-04-21 09:36:49 +00:00
Evgeny Astigeevich fd89fe0dd3 [AArch64][CodeGen] Fix of PR27158: incorrect peephole optimization in AArch64InstrInfo::optimizeCompareInstr 
AArch64InstrInfo::optimizeCompareInstr has bug PR27158 which causes generation of incorrect code.
A compare instruction is substituted with another instruction which does not
produce the same flags as the original compare instruction.
This patch contains:
1. Fix of the bug.
2. A regression test in MIR.
3. A new test to check that SUBS is replaced by SUB.

Differential Revision: http://reviews.llvm.org/D18838

llvm-svn: 266969
 2016-04-21 08:54:08 +00:00