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LebedevRILebedevRI
committedMay 30, 2019
[NFC][Codegen] Add better test coverage for potential add/sub constant folding
This adds hopefully-full test coverage for all the possible permutations: First op is one of: * x + c1 * x - c1 * c1 - x Second op is one of: * + c2 * - c2 * c2 - And thus 3*3=9 patterns. Some of them show missed constant-folds. Without previous patch (the revert), these tests were causing endless dagcombine loop. I really should have thought about this first :S llvm-svn: 362110
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