diff options
Diffstat (limited to 'llvm/lib/Transforms/Scalar/GVN.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/GVN.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Scalar/GVN.cpp b/llvm/lib/Transforms/Scalar/GVN.cpp index 1da5238bbb6..2515fd112c1 100644 --- a/llvm/lib/Transforms/Scalar/GVN.cpp +++ b/llvm/lib/Transforms/Scalar/GVN.cpp @@ -1607,6 +1607,11 @@ bool GVN::processLoad(LoadInst *L) { if (L->isVolatile()) return false; + if (L->use_empty()) { + markInstructionForDeletion(L); + return true; + } + // ... to a pointer that has been loaded from before... MemDepResult Dep = MD->getDependency(L); |
