diff options
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp b/llvm/lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp index 78af1bda7b2..ca9f82c9aa4 100644 --- a/llvm/lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp +++ b/llvm/lib/Transforms/Scalar/SeparateConstOffsetFromGEP.cpp @@ -497,6 +497,8 @@ bool ConstantOffsetExtractor::CanTraceInto(bool SignExtended, Value *LHS = BO->getOperand(0), *RHS = BO->getOperand(1); // Do not trace into "or" unless it is equivalent to "add". If LHS and RHS // don't have common bits, (LHS | RHS) is equivalent to (LHS + RHS). + // FIXME: this does not appear to be covered by any tests + // (with x86/aarch64 backends at least) if (BO->getOpcode() == Instruction::Or && !haveNoCommonBitsSet(LHS, RHS, DL, nullptr, BO, DT)) return false; |
