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uint <-> double conversion

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@30862 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2006-10-10 20:38:57 +00:00
parent 45aeccc1fd
commit 493a7fc5c3
3 changed files with 38 additions and 0 deletions
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18
lib/Target/ARM/ARMISelDAGToDAG.cpp
View File

@ -52,6 +52,7 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM)
setOperationAction(ISD::FP_TO_SINT, MVT::i32, Custom);
setOperationAction(ISD::SINT_TO_FP, MVT::i32, Custom);
setOperationAction(ISD::FP_TO_UINT, MVT::i32, Custom);
setOperationAction(ISD::UINT_TO_FP, MVT::i32, Custom);
setOperationAction(ISD::RET, MVT::Other, Custom);
@ -103,8 +104,10 @@ namespace llvm {
FTOSID,
FUITOS,
FTOUIS,
FUITOD,
FTOUID,
FMRRD,
@ -155,7 +158,9 @@ const char *ARMTargetLowering::getTargetNodeName(unsigned Opcode) const {
case ARMISD::FSITOD: return "ARMISD::FSITOD";
case ARMISD::FTOSID: return "ARMISD::FTOSID";
case ARMISD::FUITOS: return "ARMISD::FUITOS";
case ARMISD::FTOUIS: return "ARMISD::FTOUIS";
case ARMISD::FUITOD: return "ARMISD::FUITOD";
case ARMISD::FTOUID: return "ARMISD::FTOUID";
case ARMISD::FMRRD: return "ARMISD::FMRRD";
case ARMISD::FMDRR: return "ARMISD::FMDRR";
case ARMISD::FMSTAT: return "ARMISD::FMSTAT";
@ -614,6 +619,17 @@ static SDOperand LowerUINT_TO_FP(SDOperand Op, SelectionDAG &DAG) {
return DAG.getNode(op, vt, Tmp);
}
static SDOperand LowerFP_TO_UINT(SDOperand Op, SelectionDAG &DAG) {
assert(Op.getValueType() == MVT::i32);
SDOperand FloatVal = Op.getOperand(0);
MVT::ValueType vt = FloatVal.getValueType();
assert(vt == MVT::f32 || vt == MVT::f64);
ARMISD::NodeType op = vt == MVT::f32 ? ARMISD::FTOUIS : ARMISD::FTOUID;
SDOperand Tmp = DAG.getNode(op, MVT::f32, FloatVal);
return DAG.getNode(ISD::BIT_CONVERT, MVT::i32, Tmp);
}
SDOperand ARMTargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
switch (Op.getOpcode()) {
default:
@ -627,6 +643,8 @@ SDOperand ARMTargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
return LowerFP_TO_SINT(Op, DAG);
case ISD::SINT_TO_FP:
return LowerSINT_TO_FP(Op, DAG);
case ISD::FP_TO_UINT:
return LowerFP_TO_UINT(Op, DAG);
case ISD::UINT_TO_FP:
return LowerUINT_TO_FP(Op, DAG);
case ISD::FORMAL_ARGUMENTS:

8
lib/Target/ARM/ARMInstrInfo.td
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@ -81,7 +81,9 @@ def armftosis : SDNode<"ARMISD::FTOSIS", SDTUnaryOp>;
def armfsitod : SDNode<"ARMISD::FSITOD", SDTUnaryOp>;
def armftosid : SDNode<"ARMISD::FTOSID", SDTUnaryOp>;
def armfuitos : SDNode<"ARMISD::FUITOS", SDTUnaryOp>;
def armftouis : SDNode<"ARMISD::FTOUIS", SDTUnaryOp>;
def armfuitod : SDNode<"ARMISD::FUITOD", SDTUnaryOp>;
def armftouid : SDNode<"ARMISD::FTOUID", SDTUnaryOp>;
def SDTarmfmrrd : SDTypeProfile<0, 3, [SDTCisInt<0>, SDTCisInt<1>, SDTCisFP<2>]>;
def armfmrrd : SDNode<"ARMISD::FMRRD", SDTarmfmrrd,
@ -215,9 +217,15 @@ def FTOSID : InstARM<(ops FPRegs:$dst, DFPRegs:$src),
def FUITOS : InstARM<(ops FPRegs:$dst, FPRegs:$src),
"fuitos $dst, $src", [(set FPRegs:$dst, (armfuitos FPRegs:$src))]>;
def FTOUIS : InstARM<(ops FPRegs:$dst, FPRegs:$src),
"ftouis $dst, $src", [(set FPRegs:$dst, (armftouis FPRegs:$src))]>;
def FUITOD : InstARM<(ops DFPRegs:$dst, FPRegs:$src),
"fuitod $dst, $src", [(set DFPRegs:$dst, (armfuitod FPRegs:$src))]>;
def FTOUID : InstARM<(ops FPRegs:$dst, DFPRegs:$src),
"ftouid $dst, $src", [(set FPRegs:$dst, (armftouid DFPRegs:$src))]>;
def FCVTDS : InstARM<(ops DFPRegs:$dst, FPRegs:$src),
"fcvtds $dst, $src", [(set DFPRegs:$dst, (fextend FPRegs:$src))]>;

12
test/CodeGen/ARM/fpconv.ll
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@ -25,3 +25,15 @@ entry:
%tmp = cast double %x to int
ret int %tmp
}
uint %f5(float %x) {
entry:
%tmp = cast float %x to uint
ret uint %tmp
}
uint %f6(double %x) {
entry:
%tmp = cast double %x to uint
ret uint %tmp
}