diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/GVNHoist.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/GVNHoist.cpp b/llvm/lib/Transforms/Scalar/GVNHoist.cpp index ad373ba542e..c420089cc6d 100644 --- a/llvm/lib/Transforms/Scalar/GVNHoist.cpp +++ b/llvm/lib/Transforms/Scalar/GVNHoist.cpp @@ -613,6 +613,9 @@ public: // Also copy Val when it is a GEP. if (Val && isa<GetElementPtrInst>(Val)) { + // Check whether we can compute the GEP at HoistPt. + if (!allOperandsAvailable(Val, HoistPt)) + return false; Instruction *ClonedVal = Val->clone(); ClonedVal->insertBefore(HoistPt->getTerminator()); // Conservatively discard any optimization hints, they may differ on the |
