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| author | Nick Lewycky <nicholas@mxc.ca> | 2011-01-27 19:51:31 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2011-01-27 19:51:31 +0000 |
| commit | e2d46d30ae353344cfc3613b2f21cb704566daa3 (patch) | |
| tree | 301eebd61b42f3a4dee15b3a4f79507bb8348258 /llvm/lib/Transforms | |
| parent | e801399372bd8083afc8e14e9e4c0bcd992e748a (diff) | |
| download | bcm5719-llvm-e2d46d30ae353344cfc3613b2f21cb704566daa3.tar.gz bcm5719-llvm-e2d46d30ae353344cfc3613b2f21cb704566daa3.zip | |
Expound upon this comparison!
llvm-svn: 124406
Diffstat (limited to 'llvm/lib/Transforms')
| -rw-r--r-- | llvm/lib/Transforms/IPO/MergeFunctions.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/IPO/MergeFunctions.cpp b/llvm/lib/Transforms/IPO/MergeFunctions.cpp index 9abb99d04d3..d8eddab923c 100644 --- a/llvm/lib/Transforms/IPO/MergeFunctions.cpp +++ b/llvm/lib/Transforms/IPO/MergeFunctions.cpp @@ -468,6 +468,8 @@ bool FunctionComparator::Enumerate(const Value *V1, const Value *V2) { if (C1->isNullValue() && C2->isNullValue() && isEquivalentType(C1->getType(), C2->getType())) return true; + // Try bitcasting C2 to C1's type. If the bitcast is legal and returns C1 + // then they must have equal bit patterns. return C1->getType()->canLosslesslyBitCastTo(C2->getType()) && C1 == ConstantExpr::getBitCast(const_cast<Constant*>(C2), C1->getType()); } |
