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Separate FILD and FILD_FLAG, the later is only used for SSE2. It produces a

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flag so it can be flagged to a FST.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25953 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-02-04 02:20:30 +00:00
parent 3d81fee851
commit e3de85b447
3 changed files with 15 additions and 8 deletions
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8
lib/Target/X86/X86ISelLowering.cpp
View File

@ -1476,18 +1476,19 @@ SDOperand X86TargetLowering::LowerOperation(SDOperand Op, SelectionDAG &DAG) {
std::vector<MVT::ValueType> Tys;
Tys.push_back(MVT::f64);
Tys.push_back(MVT::Other);
Tys.push_back(MVT::Flag);
if (X86ScalarSSE) Tys.push_back(MVT::Flag);
std::vector<SDOperand> Ops;
Ops.push_back(Chain);
Ops.push_back(StackSlot);
Ops.push_back(DAG.getValueType(SrcVT));
Result = DAG.getNode(X86ISD::FILD, Tys, Ops);
Result = DAG.getNode(X86ScalarSSE ? X86ISD::FILD_FLAG :X86ISD::FILD,
Tys, Ops);
if (X86ScalarSSE) {
Chain = Result.getValue(1);
SDOperand InFlag = Result.getValue(2);
// FIXME: Currently the FST is flagged to the FILD. This
// FIXME: Currently the FST is flagged to the FILD_FLAG. This
// shouldn't be necessary except that RFP cannot be live across
// multiple blocks. When stackifier is fixed, they can be uncoupled.
MachineFunction &MF = DAG.getMachineFunction();
@ -1974,6 +1975,7 @@ const char *X86TargetLowering::getTargetNodeName(unsigned Opcode) const {
case X86ISD::FAND: return "X86ISD::FAND";
case X86ISD::FXOR: return "X86ISD::FXOR";
case X86ISD::FILD: return "X86ISD::FILD";
case X86ISD::FILD_FLAG: return "X86ISD::FILD_FLAG";
case X86ISD::FP_TO_INT16_IN_MEM: return "X86ISD::FP_TO_INT16_IN_MEM";
case X86ISD::FP_TO_INT32_IN_MEM: return "X86ISD::FP_TO_INT32_IN_MEM";
case X86ISD::FP_TO_INT64_IN_MEM: return "X86ISD::FP_TO_INT64_IN_MEM";

10
lib/Target/X86/X86ISelLowering.h
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@ -49,11 +49,13 @@ namespace llvm {
/// to X86::XORPS or X86::XORPD.
FXOR,
/// FILD - This instruction implements SINT_TO_FP with the integer source
/// in memory and FP reg result. This corresponds to the X86::FILD*m
/// instructions. It has three inputs (token chain, address, and source
/// type) and three outputs (FP value, token chain, and a flag).
/// FILD, FILD_FLAG - This instruction implements SINT_TO_FP with the
/// integer source in memory and FP reg result. This corresponds to the
/// X86::FILD*m instructions. It has three inputs (token chain, address,
/// and source type) and two outputs (FP value and token chain). FILD_FLAG
/// also produces a flag).
FILD,
FILD_FLAG,
/// FP_TO_INT*_IN_MEM - This instruction implements FP_TO_SINT with the
/// integer destination in memory and a FP reg source. This corresponds

5
lib/Target/X86/X86InstrInfo.td
View File

@ -108,6 +108,8 @@ def X86fld : SDNode<"X86ISD::FLD", SDTX86Fld,
def X86fst : SDNode<"X86ISD::FST", SDTX86Fst,
[SDNPHasChain, SDNPInFlag]>;
def X86fild : SDNode<"X86ISD::FILD", SDTX86Fild,
[SDNPHasChain]>;
def X86fildflag: SDNode<"X86ISD::FILD_FLAG",SDTX86Fild,
[SDNPHasChain, SDNPOutFlag]>;
def X86fp_to_i16mem : SDNode<"X86ISD::FP_TO_INT16_IN_MEM", SDTX86FpToIMem,
[SDNPHasChain]>;
@ -3121,7 +3123,8 @@ def : Pat<(f64 fp64immneg0), (FpCHS (FpLD0))>, Requires<[FPStack]>;
def : Pat<(f64 fp64immneg1), (FpCHS (FpLD1))>, Requires<[FPStack]>;
// Used to conv. i64 to f64 since there isn't a SSE version.
def : Pat<(X86fild addr:$src, i64), (FpILD64m addr:$src)>, Requires<[HasSSE2]>;
def : Pat<(X86fildflag addr:$src, i64), (FpILD64m addr:$src)>,
Requires<[HasSSE2]>;
//===----------------------------------------------------------------------===//
// Some peepholes