diff options
| author | Chris Lattner <sabre@nondot.org> | 2004-04-12 00:12:04 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2004-04-12 00:12:04 +0000 |
| commit | 13c07feb20be193a1c5e6bc0a27ff428d5a7ab6f (patch) | |
| tree | ed5a8497345a2210124d05a05445bdb77f04f408 /lib/Target/X86/InstSelectSimple.cpp | |
| parent | 36ee07ff9d26a2c6ebf9faf9ba90923644db29c5 (diff) | |
Adjust some comments, fix a bug in my previous patch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12848 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/InstSelectSimple.cpp')
| -rw-r--r-- | lib/Target/X86/InstSelectSimple.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/Target/X86/InstSelectSimple.cpp b/lib/Target/X86/InstSelectSimple.cpp index 6584981947..2477da0020 100644 --- a/lib/Target/X86/InstSelectSimple.cpp +++ b/lib/Target/X86/InstSelectSimple.cpp @@ -1877,7 +1877,7 @@ void ISel::emitBinaryFPOperation(MachineBasicBlock *BB, return; } - // Special case: R1 = sub <const fp>, R2 + // Special case: R1 = op <const fp>, R2 if (ConstantFP *CFP = dyn_cast<ConstantFP>(Op0)) if (CFP->isExactlyValue(-0.0) && OperatorClass == 1) { // -0.0 - X === -X @@ -1885,7 +1885,7 @@ void ISel::emitBinaryFPOperation(MachineBasicBlock *BB, BuildMI(*BB, IP, X86::FCHS, 1, DestReg).addReg(op1Reg); return; } else if (!CFP->isExactlyValue(+0.0) && !CFP->isExactlyValue(+1.0)) { - // R1 = sub CST, R2 --> R1 = subr R2, CST + // R1 = op CST, R2 --> R1 = opr R2, CST // Create a constant pool entry for this constant. MachineConstantPool *CP = F->getConstantPool(); @@ -2634,7 +2634,6 @@ void ISel::visitLoadInst(LoadInst &I) { static const unsigned Opcode[] = { 0/*BYTE*/, X86::FILD16m, X86::FILD32m, 0/*FP*/, X86::FILD64m }; - unsigned BaseReg = 0, Scale = 1, IndexReg = 0, Disp = 0; getAddressingMode(I.getOperand(0), BaseReg, Scale, IndexReg, Disp); addFullAddress(BuildMI(BB, Opcode[Class], 5, DestReg), @@ -2644,6 +2643,7 @@ void ISel::visitLoadInst(LoadInst &I) { User = 0; } break; + case Instruction::Add: case Instruction::Sub: case Instruction::And: @@ -2653,7 +2653,7 @@ void ISel::visitLoadInst(LoadInst &I) { break; case Instruction::Mul: case Instruction::Div: - if (Class == cFP) User = 0; + if (Class != cFP) User = 0; break; // Folding only implemented for floating point. default: User = 0; break; } |