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minor code simplification, no functionality change.

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llvm-svn: 47275
This commit is contained in:
Chris Lattner 2008-02-18 17:47:29 +00:00
parent a6dc8aaa3f
commit a3318d17d4
1 changed files with 6 additions and 8 deletions
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14
lib/Transforms/Scalar/GVN.cpp
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@ -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