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| author | Philip Reames <listmail@philipreames.com> | 2015-04-23 17:36:48 +0000 |
|---|---|---|
| committer | Philip Reames <listmail@philipreames.com> | 2015-04-23 17:36:48 +0000 |
| commit | 5461d45abf940b51cfe97eaa0a7cf274d43cb394 (patch) | |
| tree | 845d9fad452f4df7f391da8abd6e16db6633b136 /llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp | |
| parent | 745615ca0059ac89b4871d8426f57a9e6f283fa7 (diff) | |
| download | llvm-5461d45abf940b51cfe97eaa0a7cf274d43cb394.zip llvm-5461d45abf940b51cfe97eaa0a7cf274d43cb394.tar.gz llvm-5461d45abf940b51cfe97eaa0a7cf274d43cb394.tar.bz2 | |
Move Value.isDereferenceablePointer to ValueTracking [NFC]
Move isDereferenceablePointer function to Analysis. This function recursively tracks dereferencability over a chain of values like other functions in ValueTracking.
This refactoring is motivated by further changes to support dereferenceable_or_null attribute (http://reviews.llvm.org/D8650). isDereferenceablePointer will be extended to perform context-sensitive analysis and IR is not a good place to have such functionality.
Patch by: Artur Pilipenko <apilipenko@azulsystems.com>
Differential Revision: reviews.llvm.org/D9075
llvm-svn: 235611
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp index 56b6cd3..1505ff0 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp @@ -1204,7 +1204,7 @@ Instruction *InstCombiner::visitCallInst(CallInst &CI) { II->addAttribute(AttributeSet::ReturnIndex, Attribute::NonNull); // isDereferenceablePointer -> deref attribute - if (DerivedPtr->isDereferenceablePointer(DL)) { + if (isDereferenceablePointer(DerivedPtr, DL)) { if (Argument *A = dyn_cast<Argument>(DerivedPtr)) { uint64_t Bytes = A->getDereferenceableBytes(); II->addDereferenceableAttr(AttributeSet::ReturnIndex, Bytes); |