diff options
| author | Chris Lattner <sabre@nondot.org> | 2010-12-01 01:24:55 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2010-12-01 01:24:55 +0000 |
| commit | b5a3196f809e8edb2e9fef09de1de3d382cb852f (patch) | |
| tree | a21ccee8f5ab344189679d1574d631c74e8efcc4 /lib/Transforms | |
| parent | 76f4e1038878e1944bb3e32e8183ce8b973bc61b (diff) | |
| download | llvm-b5a3196f809e8edb2e9fef09de1de3d382cb852f.tar.gz llvm-b5a3196f809e8edb2e9fef09de1de3d382cb852f.tar.bz2 llvm-b5a3196f809e8edb2e9fef09de1de3d382cb852f.tar.xz | |
fix a bozo bug I introduced in r119930, causing a miscompile of
20040709-1.c from the gcc testsuite. I was using the size of a
pointer instead of the pointee. This fixes rdar://8713376
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120519 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms')
| -rw-r--r-- | lib/Transforms/Scalar/MemCpyOptimizer.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/lib/Transforms/Scalar/MemCpyOptimizer.cpp index 087f022fe9..5d867e7154 100644 --- a/lib/Transforms/Scalar/MemCpyOptimizer.cpp +++ b/lib/Transforms/Scalar/MemCpyOptimizer.cpp @@ -814,7 +814,8 @@ bool MemCpyOpt::processByValArgument(CallSite CS, unsigned ArgNo) { // Find out what feeds this byval argument. Value *ByValArg = CS.getArgument(ArgNo); - uint64_t ByValSize = TD->getTypeAllocSize(ByValArg->getType()); + const Type *ByValTy =cast<PointerType>(ByValArg->getType())->getElementType(); + uint64_t ByValSize = TD->getTypeAllocSize(ByValTy); MemDepResult DepInfo = MD->getPointerDependencyFrom(AliasAnalysis::Location(ByValArg, ByValSize), true, CS.getInstruction(), |