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provide an explicit alignment for cp entries

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26069 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2006-02-09 02:15:30 +00:00
parent ef3640aded
commit 23c574a841
1 changed files with 22 additions and 6 deletions
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28
lib/Target/X86/X86ISelPattern.cpp
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@ -101,11 +101,14 @@ namespace {
/// Subtarget - Keep a pointer to the X86Subtarget around so that we can /// Subtarget - Keep a pointer to the X86Subtarget around so that we can
/// make the right decision when generating code for different targets. /// make the right decision when generating code for different targets.
const X86Subtarget *Subtarget; const X86Subtarget *Subtarget;
const TargetData &TD;
/// X86ScalarSSE - Select between SSE2 or x87 floating point ops. /// X86ScalarSSE - Select between SSE2 or x87 floating point ops.
bool X86ScalarSSE; bool X86ScalarSSE;
public: public:
ISel(TargetMachine &TM) : SelectionDAGISel(X86Lowering), X86Lowering(TM) { ISel(TargetMachine &TM) : SelectionDAGISel(X86Lowering),
X86Lowering(TM), TD(TM.getTargetData()) {
Subtarget = &TM.getSubtarget<X86Subtarget>(); Subtarget = &TM.getSubtarget<X86Subtarget>();
X86ScalarSSE = Subtarget->hasSSE2(); X86ScalarSSE = Subtarget->hasSSE2();
} }
@ -1312,11 +1315,17 @@ unsigned ISel::SelectExpr(SDOperand N) {
Tmp1 = cast<FrameIndexSDNode>(N)->getIndex(); Tmp1 = cast<FrameIndexSDNode>(N)->getIndex();
addFrameReference(BuildMI(BB, X86::LEA32r, 4, Result), (int)Tmp1); addFrameReference(BuildMI(BB, X86::LEA32r, 4, Result), (int)Tmp1);
return Result; return Result;
case ISD::ConstantPool: case ISD::ConstantPool: {
Tmp1 = BB->getParent()->getConstantPool()-> Constant *C = cast<ConstantPoolSDNode>(N)->get();
getConstantPoolIndex(cast<ConstantPoolSDNode>(N)->get()); unsigned Align = cast<ConstantPoolSDNode>(N)->getAlignment();
if (Align == 0) {
Align = C->getType() == Type::DoubleTy ? 3 :
TD.getTypeAlignmentShift(C->getType());
}
Tmp1 = BB->getParent()->getConstantPool()->getConstantPoolIndex(C, Align);
addConstantPoolReference(BuildMI(BB, X86::LEA32r, 4, Result), Tmp1); addConstantPoolReference(BuildMI(BB, X86::LEA32r, 4, Result), Tmp1);
return Result; return Result;
}
case ISD::ConstantFP: case ISD::ConstantFP:
if (X86ScalarSSE) { if (X86ScalarSSE) {
assert(cast<ConstantFPSDNode>(N)->isExactlyValue(+0.0) && assert(cast<ConstantFPSDNode>(N)->isExactlyValue(+0.0) &&
@ -2240,8 +2249,15 @@ unsigned ISel::SelectExpr(SDOperand N) {
} }
if (ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(N.getOperand(1))){ if (ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(N.getOperand(1))){
Constant *C = CP->get();
unsigned Align = CP->getAlignment();
if (Align == 0) {
Align = C->getType() == Type::DoubleTy ? 3 :
TD.getTypeAlignmentShift(C->getType());
}
unsigned CPIdx = BB->getParent()->getConstantPool()-> unsigned CPIdx = BB->getParent()->getConstantPool()->
getConstantPoolIndex(CP->get()); getConstantPoolIndex(C, Align);
Select(N.getOperand(0)); Select(N.getOperand(0));
addConstantPoolReference(BuildMI(BB, Opc, 4, Result), CPIdx); addConstantPoolReference(BuildMI(BB, Opc, 4, Result), CPIdx);
} else { } else {
@ -2296,7 +2312,7 @@ unsigned ISel::SelectExpr(SDOperand N) {
assert(cast<VTSDNode>(Node->getOperand(3))->getVT() == MVT::f32 && assert(cast<VTSDNode>(Node->getOperand(3))->getVT() == MVT::f32 &&
"Bad EXTLOAD!"); "Bad EXTLOAD!");
unsigned CPIdx = BB->getParent()->getConstantPool()-> unsigned CPIdx = BB->getParent()->getConstantPool()->
getConstantPoolIndex(CP->get()); getConstantPoolIndex(CP->get(), 2);
addConstantPoolReference(BuildMI(BB, X86::FpLD32m, 4, Result), CPIdx); addConstantPoolReference(BuildMI(BB, X86::FpLD32m, 4, Result), CPIdx);
return Result; return Result;