aboutsummaryrefslogtreecommitdiff
path: root/lib/Transforms
diff options
context:
space:
mode:
Diffstat (limited to 'lib/Transforms')
-rw-r--r--lib/Transforms/Scalar/GVN.cpp14
1 files changed, 6 insertions, 8 deletions
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index a4f78fe457..efe8254cd5 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -1117,15 +1117,13 @@ bool GVN::processMemCpy(MemCpyInst* M,
// First, we have to check that the dependency is another memcpy
Instruction* dep = MD.getDependency(M);
- if (dep == MemoryDependenceAnalysis::None ||
- dep == MemoryDependenceAnalysis::NonLocal)
+ if (dep == MemoryDependenceAnalysis::None ||
+ dep == MemoryDependenceAnalysis::NonLocal)
+ return false;
+ else if (CallInst* C = dyn_cast<CallInst>(dep))
+ return performReturnSlotOptzn(M, C, toErase);
+ else if (!isa<MemCpyInst>(dep))
return false;
- else if (!isa<MemCpyInst>(dep)) {
- if (CallInst* C = dyn_cast<CallInst>(dep))
- return performReturnSlotOptzn(M, C, toErase);
- else
- return false;
- }
// We can only transforms memcpy's where the dest of one is the source of the
// other