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1cd1d02141
For instance, following transformation will be disabled:
x + x + x => 3.0f * x;
The problem of these transformations is that it introduces a FP constant, which
following Instruction-Selection pass cannot handle.
Reviewed by Nadav, thanks a lot!
rdar://13445387
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177933 91177308-0d34-0410-b5e6-96231b3b80d8