forked from OSchip/llvm-project
fb71b7d3e0
We currently only support folding a subtract into a select but not a PHI. This fixes that. I had to fix an assumption in FoldOpIntoPhi that assumed the PHI node was always in operand 0. Now we pass it in like we do for FoldOpIntoSelect. But we still require some dancing to find the Constant when we create the BinOp or ConstantExpr. This is based code is similar to what we do for selects. Since I touched all call sites, this also renames FoldOpIntoPhi to foldOpIntoPhi to match coding standards. Differential Revision: https://reviews.llvm.org/D31686 llvm-svn: 300363 |
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