Changes in directory llvm/lib/Transforms/Scalar:
InstructionCombining.cpp updated: 1.536.2.1 -> 1.536.2.1.2.1
---
Log message:
catch a missed * to int conversion
---
Diffs of the changes: (+15 -0)
InstructionCombining.cpp | 15 +++++++++++++++
1 files changed, 15 insertions(+)
Index: llvm/lib/Transforms/Scalar/InstructionCombining.cpp
diff -u llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.536.2.1
llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.536.2.1.2.1
--- llvm/lib/Transforms/Scalar/InstructionCombining.cpp:1.536.2.1 Wed Feb
7 16:32:03 2007
+++ llvm/lib/Transforms/Scalar/InstructionCombining.cpp Thu Feb 22 09:11:27 2007
@@ -4837,6 +4837,21 @@
return BinaryOperator::create(I.getOpcode(), Op0, Op1);
}
+ //Handle special case of setcc (cast T* to uint) (cast T* to uint)
+ //Generalize to seteq (cast T to >= T') (cast T to >= T')
+ //restrict to ints and pointers (so casts are sext or zext, no reinterpret)
+ if (CastInst* CI1 = dyn_cast<CastInst>(Op1)) {
+ Value* CastOp1 = CI1->getOperand(0);
+ if (I.isEquality() && CastOp0->getType() == CastOp1->getType() &&
+ TD->getTypeSize(Op1->getType()) >=
TD->getTypeSize(CastOp1->getType()) &&
+ (CastOp1->getType()->isInteger() ||
isa<PointerType>(CastOp1->getType())) &&
+ (Op1->getType()->isInteger() || isa<PointerType>(Op1->getType()))
+ ) {
+ std::cerr << "Triggered\n";
+ return BinaryOperator::create(I.getOpcode(), CastOp0, CastOp1);
+ }
+ }
+
// Handle the special case of: setcc (cast bool to X), <cst>
// This comes up when you have code like
// int X = A < B;
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