llvm-6502/include
David Majnemer dfe81adbce InstCombine: Don't miscompile (x lshr C1) udiv C2
We have a transform that changes:
  (x lshr C1) udiv C2
into:
  x udiv (C2 << C1)

However, it is unsafe to do so if C2 << C1 discards any of C2's bits.

This fixes PR21255.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219634 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-13 21:48:30 +00:00
..
llvm InstCombine: Don't miscompile (x lshr C1) udiv C2 2014-10-13 21:48:30 +00:00
llvm-c C API: Add LLVMCloneModule() 2014-10-01 17:14:57 +00:00