SelectionDAGBuilder: CaseBlock, CaseRanges and CaseCmp changed representation of Low and High from signed to unsigned. Since unsigned ints usually simpler, faster and allows to reduce some extra signed bit checks needed before <,>,<=,>= comparisons.

llvm-svn: 156985

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
index 8393b414926..00e7aa1c1c1 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.h
@@ -187,7 +187,7 @@ private:
       assert(isa<ConstantInt>(C1.Low) && isa<ConstantInt>(C2.High));
       const ConstantInt* CI1 = cast<const ConstantInt>(C1.Low);
       const ConstantInt* CI2 = cast<const ConstantInt>(C2.High);
-      return CI1->getValue().slt(CI2->getValue());
+      return CI1->getValue().ult(CI2->getValue());
     }
   };