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| author | Vikram S. Adve <vadve@cs.uiuc.edu> | 2002-08-15 14:19:22 +0000 |
|---|---|---|
| committer | Vikram S. Adve <vadve@cs.uiuc.edu> | 2002-08-15 14:19:22 +0000 |
| commit | 85af131d9e76e57244c8704792647f173443ffb6 (patch) | |
| tree | 0eed32284a1a2ce3eef7ffcab00c529d75c970c4 /lib | |
| parent | ce08e1dd3ed5427f4efee4a8efe4b4b544efa2e3 (diff) | |
| download | external_llvm-85af131d9e76e57244c8704792647f173443ffb6.zip external_llvm-85af131d9e76e57244c8704792647f173443ffb6.tar.gz external_llvm-85af131d9e76e57244c8704792647f173443ffb6.tar.bz2 | |
Unary Not (boolean and bitwise) is no longer a separate LLVM instruction
but is instead implemented with XOR. Note that the InstrForest opLabels
for Not and BNot remain the same, i.e., the XOR is recognized and
represented as a (boolean or bitwise) Not when building the instruction
trees. But these tree nodes are now binary, not unary.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3343 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/InstrSelection/InstrForest.cpp | 9 | ||||
| -rw-r--r-- | lib/Target/SparcV9/InstrSelection/InstrForest.cpp | 9 |
2 files changed, 14 insertions, 4 deletions
diff --git a/lib/CodeGen/InstrSelection/InstrForest.cpp b/lib/CodeGen/InstrSelection/InstrForest.cpp index d7edf15..c24c35b 100644 --- a/lib/CodeGen/InstrSelection/InstrForest.cpp +++ b/lib/CodeGen/InstrSelection/InstrForest.cpp @@ -73,10 +73,15 @@ InstructionNode::InstructionNode(Instruction* I) { opLabel = opLabel + 100; // load/getElem with index vector } + else if (opLabel == Instruction::Xor && + BinaryOperator::isNot(I)) + { + opLabel = (I->getType() == Type::BoolTy)? NotOp // boolean Not operator + : BNotOp; // bitwise Not operator + } else if (opLabel == Instruction::And || opLabel == Instruction::Or || - opLabel == Instruction::Xor || - opLabel == Instruction::Not) + opLabel == Instruction::Xor) { // Distinguish bitwise operators from logical operators! if (I->getType() != Type::BoolTy) diff --git a/lib/Target/SparcV9/InstrSelection/InstrForest.cpp b/lib/Target/SparcV9/InstrSelection/InstrForest.cpp index d7edf15..c24c35b 100644 --- a/lib/Target/SparcV9/InstrSelection/InstrForest.cpp +++ b/lib/Target/SparcV9/InstrSelection/InstrForest.cpp @@ -73,10 +73,15 @@ InstructionNode::InstructionNode(Instruction* I) { opLabel = opLabel + 100; // load/getElem with index vector } + else if (opLabel == Instruction::Xor && + BinaryOperator::isNot(I)) + { + opLabel = (I->getType() == Type::BoolTy)? NotOp // boolean Not operator + : BNotOp; // bitwise Not operator + } else if (opLabel == Instruction::And || opLabel == Instruction::Or || - opLabel == Instruction::Xor || - opLabel == Instruction::Not) + opLabel == Instruction::Xor) { // Distinguish bitwise operators from logical operators! if (I->getType() != Type::BoolTy) |