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Hans Wennborg c2a5600ca5 Merging r227809:

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r227809 | jvoung | 2015-02-02 08:56:50 -0800 (Mon, 02 Feb 2015) | 16 lines

Fix ARM peephole optimizeCompare to avoid optimizing unsigned cmp to 0.

Summary:
Previously it only avoided optimizing signed comparisons to 0.
Sometimes the DAGCombiner will optimize the unsigned comparisons
to 0 before it gets to the peephole pass, but sometimes it doesn't.

Fix for PR22373.

Test Plan: test/CodeGen/ARM/sub-cmp-peephole.ll

Reviewers: jfb, manmanren

Subscribers: aemerson, llvm-commits

Differential Revision: http://reviews.llvm.org/D7274
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_36@227864 91177308-0d34-0410-b5e6-96231b3b80d8

2015-02-02 21:24:01 +00:00

AArch64

Merging r226664:

2015-01-26 23:16:44 +00:00

ARM

Merging r227809:

2015-02-02 21:24:01 +00:00

CPP

…

Generic

CodeGen: do not attempt to invalidate virtual registers for zero-sized phis.

2014-12-19 20:50:07 +00:00