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Factor out the code for mapping LLVM IR condition opcodes to

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ISD condition opcodes into helper functions.

llvm-svn: 57710
This commit is contained in:
Dan Gohman 2008-10-17 18:18:45 +00:00
parent d96b8d12bc
commit 96269ec52a
1 changed files with 61 additions and 126 deletions
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187
lib/CodeGen/SelectionDAG/SelectionDAGBuild.cpp
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@ -996,6 +996,61 @@ static bool InBlock(const Value *V, const BasicBlock *BB) {
return true;
}
/// getFCmpCondCode - Return the ISD condition code corresponding to
/// the given LLVM IR floating-point condition code. This includes
/// consideration of global floating-point math flags.
///
static ISD::CondCode getFCmpCondCode(FCmpInst::Predicate Pred) {
ISD::CondCode FPC, FOC;
switch (Pred) {
case FCmpInst::FCMP_FALSE: FOC = FPC = ISD::SETFALSE; break;
case FCmpInst::FCMP_OEQ: FOC = ISD::SETEQ; FPC = ISD::SETOEQ; break;
case FCmpInst::FCMP_OGT: FOC = ISD::SETGT; FPC = ISD::SETOGT; break;
case FCmpInst::FCMP_OGE: FOC = ISD::SETGE; FPC = ISD::SETOGE; break;
case FCmpInst::FCMP_OLT: FOC = ISD::SETLT; FPC = ISD::SETOLT; break;
case FCmpInst::FCMP_OLE: FOC = ISD::SETLE; FPC = ISD::SETOLE; break;
case FCmpInst::FCMP_ONE: FOC = ISD::SETNE; FPC = ISD::SETONE; break;
case FCmpInst::FCMP_ORD: FOC = FPC = ISD::SETO; break;
case FCmpInst::FCMP_UNO: FOC = FPC = ISD::SETUO; break;
case FCmpInst::FCMP_UEQ: FOC = ISD::SETEQ; FPC = ISD::SETUEQ; break;
case FCmpInst::FCMP_UGT: FOC = ISD::SETGT; FPC = ISD::SETUGT; break;
case FCmpInst::FCMP_UGE: FOC = ISD::SETGE; FPC = ISD::SETUGE; break;
case FCmpInst::FCMP_ULT: FOC = ISD::SETLT; FPC = ISD::SETULT; break;
case FCmpInst::FCMP_ULE: FOC = ISD::SETLE; FPC = ISD::SETULE; break;
case FCmpInst::FCMP_UNE: FOC = ISD::SETNE; FPC = ISD::SETUNE; break;
case FCmpInst::FCMP_TRUE: FOC = FPC = ISD::SETTRUE; break;
default:
assert(0 && "Invalid FCmp predicate opcode!");
FOC = FPC = ISD::SETFALSE;
break;
}
if (FiniteOnlyFPMath())
return FOC;
else
return FPC;
}
/// getICmpCondCode - Return the ISD condition code corresponding to
/// the given LLVM IR integer condition code.
///
static ISD::CondCode getICmpCondCode(ICmpInst::Predicate Pred) {
switch (Pred) {
case ICmpInst::ICMP_EQ: return ISD::SETEQ;
case ICmpInst::ICMP_NE: return ISD::SETNE;
case ICmpInst::ICMP_SLE: return ISD::SETLE;
case ICmpInst::ICMP_ULE: return ISD::SETULE;
case ICmpInst::ICMP_SGE: return ISD::SETGE;
case ICmpInst::ICMP_UGE: return ISD::SETUGE;
case ICmpInst::ICMP_SLT: return ISD::SETLT;
case ICmpInst::ICMP_ULT: return ISD::SETULT;
case ICmpInst::ICMP_SGT: return ISD::SETGT;
case ICmpInst::ICMP_UGT: return ISD::SETUGT;
default:
assert(0 && "Invalid ICmp predicate opcode!");
return ISD::SETNE;
}
}
/// FindMergedConditions - If Cond is an expression like
void SelectionDAGLowering::FindMergedConditions(Value *Cond,
MachineBasicBlock *TBB,
@ -1024,44 +1079,9 @@ void SelectionDAGLowering::FindMergedConditions(Value *Cond,
BOp = cast<Instruction>(Cond);
ISD::CondCode Condition;
if (ICmpInst *IC = dyn_cast<ICmpInst>(Cond)) {
switch (IC->getPredicate()) {
default: assert(0 && "Unknown icmp predicate opcode!");
case ICmpInst::ICMP_EQ: Condition = ISD::SETEQ; break;
case ICmpInst::ICMP_NE: Condition = ISD::SETNE; break;
case ICmpInst::ICMP_SLE: Condition = ISD::SETLE; break;
case ICmpInst::ICMP_ULE: Condition = ISD::SETULE; break;
case ICmpInst::ICMP_SGE: Condition = ISD::SETGE; break;
case ICmpInst::ICMP_UGE: Condition = ISD::SETUGE; break;
case ICmpInst::ICMP_SLT: Condition = ISD::SETLT; break;
case ICmpInst::ICMP_ULT: Condition = ISD::SETULT; break;
case ICmpInst::ICMP_SGT: Condition = ISD::SETGT; break;
case ICmpInst::ICMP_UGT: Condition = ISD::SETUGT; break;
}
Condition = getICmpCondCode(IC->getPredicate());
} else if (FCmpInst *FC = dyn_cast<FCmpInst>(Cond)) {
ISD::CondCode FPC, FOC;
switch (FC->getPredicate()) {
default: assert(0 && "Unknown fcmp predicate opcode!");
case FCmpInst::FCMP_FALSE: FOC = FPC = ISD::SETFALSE; break;
case FCmpInst::FCMP_OEQ: FOC = ISD::SETEQ; FPC = ISD::SETOEQ; break;
case FCmpInst::FCMP_OGT: FOC = ISD::SETGT; FPC = ISD::SETOGT; break;
case FCmpInst::FCMP_OGE: FOC = ISD::SETGE; FPC = ISD::SETOGE; break;
case FCmpInst::FCMP_OLT: FOC = ISD::SETLT; FPC = ISD::SETOLT; break;
case FCmpInst::FCMP_OLE: FOC = ISD::SETLE; FPC = ISD::SETOLE; break;
case FCmpInst::FCMP_ONE: FOC = ISD::SETNE; FPC = ISD::SETONE; break;
case FCmpInst::FCMP_ORD: FOC = FPC = ISD::SETO; break;
case FCmpInst::FCMP_UNO: FOC = FPC = ISD::SETUO; break;
case FCmpInst::FCMP_UEQ: FOC = ISD::SETEQ; FPC = ISD::SETUEQ; break;
case FCmpInst::FCMP_UGT: FOC = ISD::SETGT; FPC = ISD::SETUGT; break;
case FCmpInst::FCMP_UGE: FOC = ISD::SETGE; FPC = ISD::SETUGE; break;
case FCmpInst::FCMP_ULT: FOC = ISD::SETLT; FPC = ISD::SETULT; break;
case FCmpInst::FCMP_ULE: FOC = ISD::SETLE; FPC = ISD::SETULE; break;
case FCmpInst::FCMP_UNE: FOC = ISD::SETNE; FPC = ISD::SETUNE; break;
case FCmpInst::FCMP_TRUE: FOC = FPC = ISD::SETTRUE; break;
}
if (FiniteOnlyFPMath())
Condition = FOC;
else
Condition = FPC;
Condition = getFCmpCondCode(FC->getPredicate());
} else {
Condition = ISD::SETEQ; // silence warning.
assert(0 && "Unknown compare instruction");
@ -2067,23 +2087,7 @@ void SelectionDAGLowering::visitICmp(User &I) {
predicate = ICmpInst::Predicate(IC->getPredicate());
SDValue Op1 = getValue(I.getOperand(0));
SDValue Op2 = getValue(I.getOperand(1));
ISD::CondCode Opcode;
switch (predicate) {
case ICmpInst::ICMP_EQ : Opcode = ISD::SETEQ; break;
case ICmpInst::ICMP_NE : Opcode = ISD::SETNE; break;
case ICmpInst::ICMP_UGT : Opcode = ISD::SETUGT; break;
case ICmpInst::ICMP_UGE : Opcode = ISD::SETUGE; break;
case ICmpInst::ICMP_ULT : Opcode = ISD::SETULT; break;
case ICmpInst::ICMP_ULE : Opcode = ISD::SETULE; break;
case ICmpInst::ICMP_SGT : Opcode = ISD::SETGT; break;
case ICmpInst::ICMP_SGE : Opcode = ISD::SETGE; break;
case ICmpInst::ICMP_SLT : Opcode = ISD::SETLT; break;
case ICmpInst::ICMP_SLE : Opcode = ISD::SETLE; break;
default:
assert(!"Invalid ICmp predicate value");
Opcode = ISD::SETEQ;
break;
}
ISD::CondCode Opcode = getICmpCondCode(predicate);
setValue(&I, DAG.getSetCC(MVT::i1, Op1, Op2, Opcode));
}
@ -2095,33 +2099,7 @@ void SelectionDAGLowering::visitFCmp(User &I) {
predicate = FCmpInst::Predicate(FC->getPredicate());
SDValue Op1 = getValue(I.getOperand(0));
SDValue Op2 = getValue(I.getOperand(1));
ISD::CondCode Condition, FOC, FPC;
switch (predicate) {
case FCmpInst::FCMP_FALSE: FOC = FPC = ISD::SETFALSE; break;
case FCmpInst::FCMP_OEQ: FOC = ISD::SETEQ; FPC = ISD::SETOEQ; break;
case FCmpInst::FCMP_OGT: FOC = ISD::SETGT; FPC = ISD::SETOGT; break;
case FCmpInst::FCMP_OGE: FOC = ISD::SETGE; FPC = ISD::SETOGE; break;
case FCmpInst::FCMP_OLT: FOC = ISD::SETLT; FPC = ISD::SETOLT; break;
case FCmpInst::FCMP_OLE: FOC = ISD::SETLE; FPC = ISD::SETOLE; break;
case FCmpInst::FCMP_ONE: FOC = ISD::SETNE; FPC = ISD::SETONE; break;
case FCmpInst::FCMP_ORD: FOC = FPC = ISD::SETO; break;
case FCmpInst::FCMP_UNO: FOC = FPC = ISD::SETUO; break;
case FCmpInst::FCMP_UEQ: FOC = ISD::SETEQ; FPC = ISD::SETUEQ; break;
case FCmpInst::FCMP_UGT: FOC = ISD::SETGT; FPC = ISD::SETUGT; break;
case FCmpInst::FCMP_UGE: FOC = ISD::SETGE; FPC = ISD::SETUGE; break;
case FCmpInst::FCMP_ULT: FOC = ISD::SETLT; FPC = ISD::SETULT; break;
case FCmpInst::FCMP_ULE: FOC = ISD::SETLE; FPC = ISD::SETULE; break;
case FCmpInst::FCMP_UNE: FOC = ISD::SETNE; FPC = ISD::SETUNE; break;
case FCmpInst::FCMP_TRUE: FOC = FPC = ISD::SETTRUE; break;
default:
assert(!"Invalid FCmp predicate value");
FOC = FPC = ISD::SETFALSE;
break;
}
if (FiniteOnlyFPMath())
Condition = FOC;
else
Condition = FPC;
ISD::CondCode Condition = getFCmpCondCode(predicate);
setValue(&I, DAG.getSetCC(MVT::i1, Op1, Op2, Condition));
}
@ -2133,23 +2111,7 @@ void SelectionDAGLowering::visitVICmp(User &I) {
predicate = ICmpInst::Predicate(IC->getPredicate());
SDValue Op1 = getValue(I.getOperand(0));
SDValue Op2 = getValue(I.getOperand(1));
ISD::CondCode Opcode;
switch (predicate) {
case ICmpInst::ICMP_EQ : Opcode = ISD::SETEQ; break;
case ICmpInst::ICMP_NE : Opcode = ISD::SETNE; break;
case ICmpInst::ICMP_UGT : Opcode = ISD::SETUGT; break;
case ICmpInst::ICMP_UGE : Opcode = ISD::SETUGE; break;
case ICmpInst::ICMP_ULT : Opcode = ISD::SETULT; break;
case ICmpInst::ICMP_ULE : Opcode = ISD::SETULE; break;
case ICmpInst::ICMP_SGT : Opcode = ISD::SETGT; break;
case ICmpInst::ICMP_SGE : Opcode = ISD::SETGE; break;
case ICmpInst::ICMP_SLT : Opcode = ISD::SETLT; break;
case ICmpInst::ICMP_SLE : Opcode = ISD::SETLE; break;
default:
assert(!"Invalid ICmp predicate value");
Opcode = ISD::SETEQ;
break;
}
ISD::CondCode Opcode = getICmpCondCode(predicate);
setValue(&I, DAG.getVSetCC(Op1.getValueType(), Op1, Op2, Opcode));
}
@ -2161,34 +2123,7 @@ void SelectionDAGLowering::visitVFCmp(User &I) {
predicate = FCmpInst::Predicate(FC->getPredicate());
SDValue Op1 = getValue(I.getOperand(0));
SDValue Op2 = getValue(I.getOperand(1));
ISD::CondCode Condition, FOC, FPC;
switch (predicate) {
case FCmpInst::FCMP_FALSE: FOC = FPC = ISD::SETFALSE; break;
case FCmpInst::FCMP_OEQ: FOC = ISD::SETEQ; FPC = ISD::SETOEQ; break;
case FCmpInst::FCMP_OGT: FOC = ISD::SETGT; FPC = ISD::SETOGT; break;
case FCmpInst::FCMP_OGE: FOC = ISD::SETGE; FPC = ISD::SETOGE; break;
case FCmpInst::FCMP_OLT: FOC = ISD::SETLT; FPC = ISD::SETOLT; break;
case FCmpInst::FCMP_OLE: FOC = ISD::SETLE; FPC = ISD::SETOLE; break;
case FCmpInst::FCMP_ONE: FOC = ISD::SETNE; FPC = ISD::SETONE; break;
case FCmpInst::FCMP_ORD: FOC = FPC = ISD::SETO; break;
case FCmpInst::FCMP_UNO: FOC = FPC = ISD::SETUO; break;
case FCmpInst::FCMP_UEQ: FOC = ISD::SETEQ; FPC = ISD::SETUEQ; break;
case FCmpInst::FCMP_UGT: FOC = ISD::SETGT; FPC = ISD::SETUGT; break;
case FCmpInst::FCMP_UGE: FOC = ISD::SETGE; FPC = ISD::SETUGE; break;
case FCmpInst::FCMP_ULT: FOC = ISD::SETLT; FPC = ISD::SETULT; break;
case FCmpInst::FCMP_ULE: FOC = ISD::SETLE; FPC = ISD::SETULE; break;
case FCmpInst::FCMP_UNE: FOC = ISD::SETNE; FPC = ISD::SETUNE; break;
case FCmpInst::FCMP_TRUE: FOC = FPC = ISD::SETTRUE; break;
default:
assert(!"Invalid VFCmp predicate value");
FOC = FPC = ISD::SETFALSE;
break;
}
if (FiniteOnlyFPMath())
Condition = FOC;
else
Condition = FPC;
ISD::CondCode Condition = getFCmpCondCode(predicate);
MVT DestVT = TLI.getValueType(I.getType());
setValue(&I, DAG.getVSetCC(DestVT, Op1, Op2, Condition));