diff options
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp index 40b48699f758..64fbd5543a9e 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp @@ -1884,6 +1884,10 @@ Instruction *InstCombinerImpl::visitCallInst(CallInst &CI) { return crossLogicOpFold; } + // Try to fold into bitreverse if bswap is the root of the expression tree. + if (Instruction *BitOp = matchBSwapOrBitReverse(*II, /*MatchBSwaps*/ false, + /*MatchBitReversals*/ true)) + return BitOp; break; } case Intrinsic::masked_load: |