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Diffstat (limited to 'lib/Target/CellSPU/SPUISelDAGToDAG.cpp')
-rw-r--r--lib/Target/CellSPU/SPUISelDAGToDAG.cpp125
1 files changed, 72 insertions, 53 deletions
diff --git a/lib/Target/CellSPU/SPUISelDAGToDAG.cpp b/lib/Target/CellSPU/SPUISelDAGToDAG.cpp
index 73e46fff1b..bb3b100d57 100644
--- a/lib/Target/CellSPU/SPUISelDAGToDAG.cpp
+++ b/lib/Target/CellSPU/SPUISelDAGToDAG.cpp
@@ -384,11 +384,17 @@ bool
SPUDAGToDAGISel::SelectAFormAddr(SDOperand Op, SDOperand N, SDOperand &Base,
SDOperand &Index) {
// These match the addr256k operand type:
- MVT::ValueType PtrVT = SPUtli.getPointerTy();
MVT::ValueType OffsVT = MVT::i16;
+ MVT::ValueType PtrVT = SPUtli.getPointerTy();
switch (N.getOpcode()) {
case ISD::Constant:
+ case ISD::ConstantPool:
+ case ISD::GlobalAddress:
+ cerr << "SPU SelectAFormAddr: Constant/Pool/Global not lowered.\n";
+ abort();
+ /*NOTREACHED*/
+
case ISD::TargetConstant: {
// Loading from a constant address.
ConstantSDNode *CN = dyn_cast<ConstantSDNode>(N);
@@ -400,23 +406,15 @@ SPUDAGToDAGISel::SelectAFormAddr(SDOperand Op, SDOperand N, SDOperand &Base,
return true;
}
}
- case ISD::ConstantPool:
- case ISD::TargetConstantPool: {
- // The constant pool address is N. Base is a dummy that will be ignored by
+ case ISD::TargetGlobalAddress:
+ case ISD::TargetConstantPool:
+ case SPUISD::AFormAddr: {
+ // The address is in Base. N is a dummy that will be ignored by
// the assembly printer.
Base = N;
Index = CurDAG->getTargetConstant(0, OffsVT);
return true;
}
-
- case ISD::GlobalAddress:
- case ISD::TargetGlobalAddress: {
- // The global address is N. Base is a dummy that is ignored by the
- // assembly printer.
- Base = N;
- Index = CurDAG->getTargetConstant(0, OffsVT);
- return true;
- }
}
return false;
@@ -445,10 +443,9 @@ SPUDAGToDAGISel::SelectDFormAddr(SDOperand Op, SDOperand N, SDOperand &Base,
Index = CurDAG->getTargetConstant(0, PtrTy);
return true;
} else if (Opc == ISD::FrameIndex) {
- // Stack frame index must be less than 512 (divided by 16):
FrameIndexSDNode *FI = dyn_cast<FrameIndexSDNode>(N);
DEBUG(cerr << "SelectDFormAddr: ISD::FrameIndex = "
- << FI->getIndex() << "\n");
+ << FI->getIndex() << "\n");
if (FI->getIndex() < SPUFrameInfo::maxFrameOffset()) {
Base = CurDAG->getTargetConstant(0, PtrTy);
Index = CurDAG->getTargetFrameIndex(FI->getIndex(), PtrTy);
@@ -458,45 +455,49 @@ SPUDAGToDAGISel::SelectDFormAddr(SDOperand Op, SDOperand N, SDOperand &Base,
// Generated by getelementptr
const SDOperand Op0 = N.getOperand(0); // Frame index/base
const SDOperand Op1 = N.getOperand(1); // Offset within base
- ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Op1);
- // Not a constant?
- if (CN == 0)
- return false;
-
- int32_t offset = (int32_t) CN->getSignExtended();
- unsigned Opc0 = Op0.getOpcode();
-
- if ((offset & 0xf) != 0) {
- cerr << "SelectDFormAddr: unaligned offset = " << offset << "\n";
- abort();
- /*NOTREACHED*/
- }
+ if (Op1.getOpcode() == ISD::Constant
+ || Op1.getOpcode() == ISD::TargetConstant) {
+ ConstantSDNode *CN = dyn_cast<ConstantSDNode>(Op1);
+ assert(CN != 0 && "SelectDFormAddr: Expected a constant");
- if (Opc0 == ISD::FrameIndex) {
- FrameIndexSDNode *FI = dyn_cast<FrameIndexSDNode>(Op0);
- DEBUG(cerr << "SelectDFormAddr: ISD::ADD offset = " << offset
- << " frame index = " << FI->getIndex() << "\n");
+ int32_t offset = (int32_t) CN->getSignExtended();
+ unsigned Opc0 = Op0.getOpcode();
- if (FI->getIndex() < SPUFrameInfo::maxFrameOffset()) {
- Base = CurDAG->getTargetConstant(offset, PtrTy);
- Index = CurDAG->getTargetFrameIndex(FI->getIndex(), PtrTy);
- return true;
+ if ((offset & 0xf) != 0) {
+ // Unaligned offset: punt and let X-form address handle it.
+ // NOTE: This really doesn't have to be strictly 16-byte aligned,
+ // since the load/store quadword instructions will implicitly
+ // zero the lower 4 bits of the resulting address.
+ return false;
}
- } else if (offset > SPUFrameInfo::minFrameOffset()
- && offset < SPUFrameInfo::maxFrameOffset()) {
- Base = CurDAG->getTargetConstant(offset, PtrTy);
- if (Opc0 == ISD::GlobalAddress) {
- // Convert global address to target global address
- GlobalAddressSDNode *GV = dyn_cast<GlobalAddressSDNode>(Op0);
- Index = CurDAG->getTargetGlobalAddress(GV->getGlobal(), PtrTy);
- return true;
- } else {
- // Otherwise, just take operand 0
- Index = Op0;
- return true;
+
+ if (Opc0 == ISD::FrameIndex) {
+ FrameIndexSDNode *FI = dyn_cast<FrameIndexSDNode>(Op0);
+ DEBUG(cerr << "SelectDFormAddr: ISD::ADD offset = " << offset
+ << " frame index = " << FI->getIndex() << "\n");
+
+ if (FI->getIndex() < SPUFrameInfo::maxFrameOffset()) {
+ Base = CurDAG->getTargetConstant(offset, PtrTy);
+ Index = CurDAG->getTargetFrameIndex(FI->getIndex(), PtrTy);
+ return true;
+ }
+ } else if (offset > SPUFrameInfo::minFrameOffset()
+ && offset < SPUFrameInfo::maxFrameOffset()) {
+ Base = CurDAG->getTargetConstant(offset, PtrTy);
+ if (Opc0 == ISD::GlobalAddress) {
+ // Convert global address to target global address
+ GlobalAddressSDNode *GV = dyn_cast<GlobalAddressSDNode>(Op0);
+ Index = CurDAG->getTargetGlobalAddress(GV->getGlobal(), PtrTy);
+ return true;
+ } else {
+ // Otherwise, just take operand 0
+ Index = Op0;
+ return true;
+ }
}
- }
+ } else
+ return false;
} else if (Opc == SPUISD::DFormAddr) {
// D-Form address: This is pretty straightforward, naturally...
ConstantSDNode *CN = cast<ConstantSDNode>(N.getOperand(1));
@@ -504,6 +505,16 @@ SPUDAGToDAGISel::SelectDFormAddr(SDOperand Op, SDOperand N, SDOperand &Base,
Base = CurDAG->getTargetConstant(CN->getValue(), PtrTy);
Index = N.getOperand(0);
return true;
+ } else if (Opc == ISD::FrameIndex) {
+ // Stack frame index must be less than 512 (divided by 16):
+ FrameIndexSDNode *FI = dyn_cast<FrameIndexSDNode>(N);
+ DEBUG(cerr << "SelectDFormAddr: ISD::FrameIndex = "
+ << FI->getIndex() << "\n");
+ if (FI->getIndex() < SPUFrameInfo::maxFrameOffset()) {
+ Base = CurDAG->getTargetConstant(0, PtrTy);
+ Index = CurDAG->getTargetFrameIndex(FI->getIndex(), PtrTy);
+ return true;
+ }
}
return false;
@@ -535,7 +546,8 @@ SPUDAGToDAGISel::SelectXFormAddr(SDOperand Op, SDOperand N, SDOperand &Base,
unsigned N2Opc = N2.getOpcode();
if ((N1Opc == SPUISD::Hi && N2Opc == SPUISD::Lo)
- || (N1Opc == SPUISD::Lo && N2Opc == SPUISD::Hi)) {
+ || (N1Opc == SPUISD::Lo && N2Opc == SPUISD::Hi)
+ || (N1Opc == SPUISD::XFormAddr)) {
Base = N.getOperand(0);
Index = N.getOperand(1);
return true;
@@ -548,6 +560,10 @@ SPUDAGToDAGISel::SelectXFormAddr(SDOperand Op, SDOperand N, SDOperand &Base,
abort();
/*UNREACHED*/
}
+ } else if (Opc == SPUISD::XFormAddr) {
+ Base = N;
+ Index = N.getOperand(1);
+ return true;
} else if (N.getNumOperands() == 2) {
SDOperand N1 = N.getOperand(0);
SDOperand N2 = N.getOperand(1);
@@ -591,11 +607,14 @@ SPUDAGToDAGISel::Select(SDOperand Op) {
} else if (Opc == ISD::FrameIndex) {
// Selects to AIr32 FI, 0 which in turn will become AIr32 SP, imm.
int FI = cast<FrameIndexSDNode>(N)->getIndex();
- SDOperand TFI = CurDAG->getTargetFrameIndex(FI, SPUtli.getPointerTy());
+ MVT::ValueType PtrVT = SPUtli.getPointerTy();
+ SDOperand Zero = CurDAG->getTargetConstant(0, PtrVT);
+ SDOperand TFI = CurDAG->getTargetFrameIndex(FI, PtrVT);
DEBUG(cerr << "SPUDAGToDAGISel: Replacing FrameIndex with AI32 <FI>, 0\n");
- return CurDAG->SelectNodeTo(N, SPU::AIr32, Op.getValueType(), TFI,
- CurDAG->getTargetConstant(0, MVT::i32));
+ if (N->hasOneUse())
+ return CurDAG->SelectNodeTo(N, SPU::AIr32, Op.getValueType(), TFI, Zero);
+ CurDAG->getTargetNode(SPU::AIr32, Op.getValueType(), TFI, Zero);
} else if (Opc == SPUISD::LDRESULT) {
// Custom select instructions for LDRESULT
unsigned VT = N->getValueType(0);
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-08-03 12:01:19 +0000