Renato Golin 5ad5f5931e Improve long vector sext/zext lowering on ARM ...

The ARM backend currently has poor codegen for long sext/zext
operations, such as v8i8 -> v8i32. This patch addresses this
by performing a custom expansion in ARMISelLowering. It also
adds/changes the cost of such lowering in ARMTTI.

This partially addresses PR14867.

Patch by Pete Couperus

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177380 91177308-0d34-0410-b5e6-96231b3b80d8

2013-03-19 08:15:38 +00:00

..

Analysis

Check whether a pointer is non-null (isKnownNonNull) in isKnownNonZero.

2013-03-18 21:23:25 +00:00

Archive

Fix auto_ptr is deprecated warnings

2013-02-26 21:20:35 +00:00

AsmParser

Unify clang/llvm attributes for asan/tsan/msan (LLVM part)

2013-02-26 06:58:09 +00:00

Bitcode

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CodeGen

Move #include of BitVector from .h to .cpp file.

2013-03-18 23:45:45 +00:00

DebugInfo

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ExecutionEngine

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IR

The optimization a + (-0.0f) -> a was being misapplied to a + (+0.0f) in the vector case (because

2013-03-18 11:54:44 +00:00

Linker

Clean up out-of-date comments and some stray whitespace

2013-03-08 22:29:44 +00:00

MC

Change NULL to 0.

2013-03-18 23:08:01 +00:00

Object

Move an assert earlier in a file and check that the result of

2013-02-28 20:26:17 +00:00

Option

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Support

[Support][Path][Windows] Fix dangling else. Don't call CloseHandle when CloseFD is false.

2013-03-15 19:25:47 +00:00

TableGen

[TableGen] Fix ICE on MSVC 2012 Release builds.

2013-02-26 21:29:47 +00:00

Target

Improve long vector sext/zext lowering on ARM

2013-03-19 08:15:38 +00:00

Transforms

Revert "Cleanup some SCEV logic a bit."

2013-03-19 05:10:27 +00:00

CMakeLists.txt

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LLVMBuild.txt

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Makefile

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