Hal Finkel 87c1e42be7 Fix PPC optimizeCompareInstr swapped-sub argument handling ...

When matching a compare with a subtract where the arguments of the compare are
swapped w.r.t. the arguments of the subtract, we need to negate the predicates
(or CR bit indices) of the users. This, however, is not the same as inverting
the predicate (negating LT -> GT, but inverting LT -> GE, for example). The ARM
backend seems to do this correctly, but when I adapted the code for the PPC
backend, I introduced an error in this logic.

Comparison optimization is now enabled again by default.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179899 91177308-0d34-0410-b5e6-96231b3b80d8

2013-04-19 22:08:38 +00:00

..

Analysis

ConstantFolding: ComputeMaskedBits wants the scalar size for vectors.

2013-04-19 16:56:24 +00:00

Archive

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AsmParser

Fix comment. Patch by Stephen Lin.

2013-04-18 18:30:16 +00:00

Bitcode

Whitespace cleanup

2013-04-01 02:28:07 +00:00

CodeGen

Add an MRI::verifyUseLists() function.

2013-04-19 21:40:57 +00:00

DebugInfo

Use StringSwitch instead of long chain of if-else. No functionality change.

2013-04-17 14:27:04 +00:00

ExecutionEngine

Two small cleanups for ELF's templates.

2013-04-17 21:20:55 +00:00

IR

80-col fixup.

2013-04-19 20:37:12 +00:00

IRReader

Measure time that IR parsing took as part of the -time-passes measurement.

2013-04-03 15:33:45 +00:00

Linker

Specutively revert r178130.

2013-03-27 17:54:41 +00:00

MC

Relax this assert. It may not hold in all cases.

2013-04-18 23:16:46 +00:00

Object

refactor the struct byte swapping to a helper function.

2013-04-19 13:45:05 +00:00

Option

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Support

Make the host endianness check an integer constant expression.

2013-04-15 14:44:24 +00:00

TableGen

Allow TableGen DAG arguments to be just a name.

2013-03-24 19:36:51 +00:00

Target

Fix PPC optimizeCompareInstr swapped-sub argument handling

2013-04-19 22:08:38 +00:00

Transforms

LoopVectorizer: Use matcher from PatternMatch.h for the min/max patterns

2013-04-19 21:03:36 +00:00

CMakeLists.txt

Split out the IRReader header and the utility functions it provides into

2013-03-26 02:25:37 +00:00

LLVMBuild.txt

Split out the IRReader header and the utility functions it provides into

2013-03-26 02:25:37 +00:00

Makefile

Split out the IRReader header and the utility functions it provides into

2013-03-26 02:25:37 +00:00