[llvm-commits] [llvm] r132896 - in /llvm/trunk: lib/Transforms/InstCombine/InstCombineCompares.cpp test/Transforms/InstCombine/cast.ll
Benjamin Kramer
benny.kra at googlemail.com
Sun Jun 12 15:47:53 PDT 2011
Author: d0k
Date: Sun Jun 12 17:47:53 2011
New Revision: 132896
URL: http://llvm.org/viewvc/llvm-project?rev=132896&view=rev
Log:
Simplify code. No functionality changes, name changes aside.
Modified:
llvm/trunk/lib/Transforms/InstCombine/InstCombineCompares.cpp
llvm/trunk/test/Transforms/InstCombine/cast.ll
Modified: llvm/trunk/lib/Transforms/InstCombine/InstCombineCompares.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/InstCombine/InstCombineCompares.cpp?rev=132896&r1=132895&r2=132896&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/InstCombine/InstCombineCompares.cpp (original)
+++ llvm/trunk/lib/Transforms/InstCombine/InstCombineCompares.cpp Sun Jun 12 17:47:53 2011
@@ -1087,19 +1087,14 @@
// have its sign bit set or if it is an equality comparison.
// Extending a relational comparison when we're checking the sign
// bit would not work.
- if (Cast->hasOneUse() &&
- (ICI.isEquality() ||
- (AndCST->getValue().isNonNegative() && RHSV.isNonNegative()))) {
- uint32_t BitWidth =
- cast<IntegerType>(Cast->getOperand(0)->getType())->getBitWidth();
- APInt NewCST = AndCST->getValue().zext(BitWidth);
- APInt NewCI = RHSV.zext(BitWidth);
- Value *NewAnd =
+ if (ICI.isEquality() ||
+ (AndCST->getValue().isNonNegative() && RHSV.isNonNegative())) {
+ Value *NewAnd =
Builder->CreateAnd(Cast->getOperand(0),
- ConstantInt::get(ICI.getContext(), NewCST),
- LHSI->getName());
+ ConstantExpr::getZExt(AndCST, Cast->getSrcTy()));
+ NewAnd->takeName(LHSI);
return new ICmpInst(ICI.getPredicate(), NewAnd,
- ConstantInt::get(ICI.getContext(), NewCI));
+ ConstantExpr::getZExt(RHS, Cast->getSrcTy()));
}
}
Modified: llvm/trunk/test/Transforms/InstCombine/cast.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/Transforms/InstCombine/cast.ll?rev=132896&r1=132895&r2=132896&view=diff
==============================================================================
--- llvm/trunk/test/Transforms/InstCombine/cast.ll (original)
+++ llvm/trunk/test/Transforms/InstCombine/cast.ll Sun Jun 12 17:47:53 2011
@@ -265,8 +265,8 @@
%C = and i32 %B, 42 ; <i32> [#uses=1]
%D = icmp eq i32 %C, 10 ; <i1> [#uses=1]
ret i1 %D
-; CHECK: %C1 = and i64 %A, 42
-; CHECK: %D = icmp eq i64 %C1, 10
+; CHECK: %C = and i64 %A, 42
+; CHECK: %D = icmp eq i64 %C, 10
; CHECK: ret i1 %D
}
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