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Diffstat (limited to 'lib/Transforms/Utils/Local.cpp')
| -rw-r--r-- | lib/Transforms/Utils/Local.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Transforms/Utils/Local.cpp b/lib/Transforms/Utils/Local.cpp index 0167ea0bcb..aef0f5f03c 100644 --- a/lib/Transforms/Utils/Local.cpp +++ b/lib/Transforms/Utils/Local.cpp @@ -252,6 +252,9 @@ bool llvm::isInstructionTriviallyDead(Instruction *I) { // We don't want debug info removed by anything this general. if (isa<DbgInfoIntrinsic>(I)) return false; + // Likewise for memory use markers. + if (isa<MemoryUseIntrinsic>(I)) return false; + if (!I->mayHaveSideEffects()) return true; // Special case intrinsics that "may have side effects" but can be deleted |