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| author | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-01-09 00:13:41 +0000 |
|---|---|---|
| committer | Shuxin Yang <shuxin.llvm@gmail.com> | 2013-01-09 00:13:41 +0000 |
| commit | 935e35d2b9f889566207b76a7026b63a1619742c (patch) | |
| tree | cc26ce74146b052bea87a9ca28314767d6cef72b /lib/Transforms/InstCombine/InstCombine.h | |
| parent | b6714227eda5d499f7667fc865f931126a8dc488 (diff) | |
| download | external_llvm-935e35d2b9f889566207b76a7026b63a1619742c.zip external_llvm-935e35d2b9f889566207b76a7026b63a1619742c.tar.gz external_llvm-935e35d2b9f889566207b76a7026b63a1619742c.tar.bz2 | |
Consider expression "0.0 - X" as the negation of X if
- this expression is explicitly marked no-signed-zero, or
- no-signed-zero of this expression can be derived from some context.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171922 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/InstCombine/InstCombine.h')
| -rw-r--r-- | lib/Transforms/InstCombine/InstCombine.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Transforms/InstCombine/InstCombine.h b/lib/Transforms/InstCombine/InstCombine.h index 959daa2..a36b1e6 100644 --- a/lib/Transforms/InstCombine/InstCombine.h +++ b/lib/Transforms/InstCombine/InstCombine.h @@ -211,7 +211,7 @@ public: private: bool ShouldChangeType(Type *From, Type *To) const; Value *dyn_castNegVal(Value *V) const; - Value *dyn_castFNegVal(Value *V) const; + Value *dyn_castFNegVal(Value *V, bool NoSignedZero=false) const; Type *FindElementAtOffset(Type *Ty, int64_t Offset, SmallVectorImpl<Value*> &NewIndices); Instruction *FoldOpIntoSelect(Instruction &Op, SelectInst *SI); |