David Majnemer 854a37649a InstCombine: Squash an icmp+select into bitwise arithmetic ...

(X & INT_MIN) == 0 ? X ^ INT_MIN : X  into  X | INT_MIN
(X & INT_MIN) != 0 ? X ^ INT_MIN : X  into  X & INT_MAX

This fixes PR21993.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224676 91177308-0d34-0410-b5e6-96231b3b80d8

2014-12-20 04:45:35 +00:00

..

CMakeLists.txt

Tidy up a bit. No functional change.

2013-04-05 21:20:12 +00:00

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: Squash an icmp+select into bitwise arithmetic

2014-12-20 04:45:35 +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

fixed some typos

2014-07-07 22:13:58 +00:00

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

LLVMBuild: Remove trailing newline, which irked me.

2011-12-12 19:48:00 +00:00

Makefile

make -fno-rtti the default unless a directory builds with REQUIRES_RTTI.

2010-01-24 20:43:08 +00:00