David Majnemer 171825a8ce InstCombine: Don't fold (X <<s log(INT_MIN)) /s INT_MIN to X ...

Consider the case where X is 2.  (2 <<s 31)/s-2147483648 is zero but we
would fold to X.  Note that this is valid when we are in the unsigned
domain because we require NUW: 2 <<u 31 results in poison.

This fixes PR21245.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219568 91177308-0d34-0410-b5e6-96231b3b80d8

2014-10-11 10:20:04 +00:00

..

Hello

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InstCombine

InstCombine: Don't fold (X <<s log(INT_MIN)) /s INT_MIN to X

2014-10-11 10:20:04 +00:00

Instrumentation

Use triple's isiOS() and isOSDarwin() methods.

2014-10-09 05:43:30 +00:00

IPO

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ObjCARC

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Scalar

[SCEV] Add some asserts to the recently improved trip count computation

2014-10-11 00:12:11 +00:00

Utils

SimplifyCFG: Don't convert phis into selects if we could remove undef behavior

2014-10-10 01:27:02 +00:00

Vectorize

[SCEV] Fix one more caller blindly passing the latch to SCEV's

2014-10-11 05:28:30 +00:00

CMakeLists.txt

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LLVMBuild.txt

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Makefile

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