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This is an extension of the change made with r215820: http://llvm.org/viewvc/llvm-project?view=revision&revision=215820 That patch allowed combining of splatted vector FP constants that are multiplied. This patch allows combining non-uniform vector FP constants too by relaxing the check on the type of vector. Also, canonicalize a vector fmul in the same way that we already do for scalars - if only one operand of the fmul is a constant, make it operand 1. Otherwise, we miss potential folds. This fold is also done by -instcombine, but it's possible that extra fmuls may have been generated during lowering. Differential Revision: http://reviews.llvm.org/D5254 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217599 91177308-0d34-0410-b5e6-96231b3b80d8 |
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