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author | Duncan Sands <baldrick@free.fr> | 2009-09-03 13:37:16 +0000 |
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committer | Duncan Sands <baldrick@free.fr> | 2009-09-03 13:37:16 +0000 |
commit | 05cd03b33559732f8ed55e5ff7554fd06d59eb6a (patch) | |
tree | faf61b396c9fe54243d7fe1664a774d15e525265 | |
parent | f0d568d38b24cc157861b9cd1dc993efe07b3fe9 (diff) | |
download | external_llvm-05cd03b33559732f8ed55e5ff7554fd06d59eb6a.zip external_llvm-05cd03b33559732f8ed55e5ff7554fd06d59eb6a.tar.gz external_llvm-05cd03b33559732f8ed55e5ff7554fd06d59eb6a.tar.bz2 |
Keep track of how many memmove calls were turned into
memcpy calls.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80915 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r-- | lib/Transforms/Scalar/MemCpyOptimizer.cpp | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/lib/Transforms/Scalar/MemCpyOptimizer.cpp index fd74a03..d6b1585 100644 --- a/lib/Transforms/Scalar/MemCpyOptimizer.cpp +++ b/lib/Transforms/Scalar/MemCpyOptimizer.cpp @@ -31,6 +31,7 @@ using namespace llvm; STATISTIC(NumMemCpyInstr, "Number of memcpy instructions deleted"); STATISTIC(NumMemSetInfer, "Number of memsets inferred"); +STATISTIC(NumMoveToCpy, "Number of memmoves converted to memcpy"); /// isBytewiseValue - If the specified value can be set by repeating the same /// byte in memory, return the i8 value that it is represented with. This is @@ -728,10 +729,12 @@ bool MemCpyOpt::processMemMove(MemMoveInst *M) { Module *Mod = M->getParent()->getParent()->getParent(); const Type *Ty = M->getLength()->getType(); M->setOperand(0, Intrinsic::getDeclaration(Mod, Intrinsic::memcpy, &Ty, 1)); - + // MemDep may have over conservative information about this instruction, just // conservatively flush it from the cache. getAnalysis<MemoryDependenceAnalysis>().removeInstruction(M); + + ++NumMoveToCpy; return true; } |