Bruno Cardoso Lopes 06833ca7c1 Reapply: [InstCombine] Fix visitSwitchInst to use right operand types for sub cstexpr ...

The visitSwitchInst generates SUB constant expressions to recompute the
switch condition. When truncating the condition to a smaller type, SUB
expressions should use the previous type (before trunc) for both
operands. Also, fix code to also return the modified switch when only
the truncation is performed.

This fixes an assertion crash.

Differential Revision: http://reviews.llvm.org/D6644

rdar://problem/19191835

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224588 91177308-0d34-0410-b5e6-96231b3b80d8

2014-12-19 17:12:35 +00:00

..

CMakeLists.txt

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InstCombine.h

Strength reduce intrinsics with overflow into regular arithmetic operations if possible.

2014-12-17 07:29:19 +00:00

InstCombineAddSub.cpp

use -0.0 when creating an fneg instruction

2014-12-19 16:44:08 +00:00

InstCombineAndOrXor.cpp

[InstCombine] Minor optimization for bswap with binary ops

2014-12-04 09:44:01 +00:00

InstCombineCalls.cpp

Strength reduce intrinsics with overflow into regular arithmetic operations if possible.

2014-12-17 07:29:19 +00:00

InstCombineCasts.cpp

More code format fix from r224133, NFC

2014-12-12 18:48:37 +00:00

InstCombineCompares.cpp

Removed extra line from a comment to test first commit. NFC.

2014-11-28 10:38:18 +00:00

InstCombineLoadStoreAlloca.cpp

Revert r223764 which taught instcombine about integer-based elment extraction

2014-12-09 19:21:16 +00:00

InstCombineMulDivRem.cpp

InstCombine: Don't create an unused instruction

2014-11-24 16:41:13 +00:00

InstCombinePHI.cpp

Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool>

2014-11-19 07:49:26 +00:00

InstCombineSelect.cpp

InstCombine: Restore optimizations lost in r210006

2014-11-27 07:25:21 +00:00

InstCombineShifts.cpp

Make use of @llvm.assume in ValueTracking (computeKnownBits, etc.)

2014-09-07 18:57:58 +00:00

InstCombineSimplifyDemanded.cpp

Add additional patterns for @llvm.assume in ValueTracking

2014-09-07 19:21:07 +00:00

InstCombineVectorOps.cpp

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InstCombineWorklist.h

Canonicalize header guards into a common format.

2014-08-13 16:26:38 +00:00

InstructionCombining.cpp

Reapply: [InstCombine] Fix visitSwitchInst to use right operand types for sub cstexpr

2014-12-19 17:12:35 +00:00

LLVMBuild.txt

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Makefile

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