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| author | Nuno Lopes <nunoplopes@sapo.pt> | 2012-06-21 15:45:28 +0000 |
|---|---|---|
| committer | Nuno Lopes <nunoplopes@sapo.pt> | 2012-06-21 15:45:28 +0000 |
| commit | 9e72a79ef4a9fcda482ce0b0e1f0bd6a4f16cffd (patch) | |
| tree | 8861b7712018795653a7eace205bdaa6d10f2c70 /lib/Analysis/MemoryDependenceAnalysis.cpp | |
| parent | 2114a8aaba99e901735e69818bb789757ed05cfd (diff) | |
refactor the MemoryBuiltin analysis:
- provide more extensive set of functions to detect library allocation functions (e.g., malloc, calloc, strdup, etc)
- provide an API to compute the size and offset of an object pointed by
Move a few clients (GVN, AA, instcombine, ...) to the new API.
This implementation is a lot more aggressive than each of the custom implementations being replaced.
Patch reviewed by Nick Lewycky and Chandler Carruth, thanks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@158919 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Analysis/MemoryDependenceAnalysis.cpp')
| -rw-r--r-- | lib/Analysis/MemoryDependenceAnalysis.cpp | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/lib/Analysis/MemoryDependenceAnalysis.cpp b/lib/Analysis/MemoryDependenceAnalysis.cpp index 21ab7a8d38..7fb154d68a 100644 --- a/lib/Analysis/MemoryDependenceAnalysis.cpp +++ b/lib/Analysis/MemoryDependenceAnalysis.cpp @@ -474,8 +474,7 @@ getPointerDependencyFrom(const AliasAnalysis::Location &MemLoc, bool isLoad, // a subsequent bitcast of the malloc call result. There can be stores to // the malloced memory between the malloc call and its bitcast uses, and we // need to continue scanning until the malloc call. - if (isa<AllocaInst>(Inst) || - (isa<CallInst>(Inst) && extractMallocCall(Inst))) { + if (isa<AllocaInst>(Inst) || isNoAliasFn(Inst)) { const Value *AccessPtr = GetUnderlyingObject(MemLoc.Ptr, TD); if (AccessPtr == Inst || AA->isMustAlias(Inst, AccessPtr)) |