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https://github.com/c64scene-ar/llvm-6502.git
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FP fixes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@20019 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -68,6 +68,7 @@ namespace {
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computeRegisterProperties();
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addLegalFPImmediate(+0.0); //F31
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addLegalFPImmediate(-0.0); //-F31
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}
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/// LowerArguments - This hook must be implemented to indicate how we should
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@ -347,7 +348,9 @@ unsigned ISel::SelectExprFP(SDOperand N, unsigned Result)
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ExprMap[N.getValue(1)] = notIn; // Generate the token
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else
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Result = ExprMap[N.getValue(0)] = MakeReg(N.getValue(0).getValueType());
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//DestType = N.getValue(0).getValueType();
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SDOperand Chain = N.getOperand(0);
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SDOperand Address = N.getOperand(1);
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@ -355,7 +358,7 @@ unsigned ISel::SelectExprFP(SDOperand N, unsigned Result)
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{
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Select(Chain);
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AlphaLowering.restoreGP(BB);
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Opc = DestType == MVT::f64 ? Alpha::LDS_SYM : Alpha::LDT_SYM;
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Opc = DestType == MVT::f64 ? Alpha::LDT_SYM : Alpha::LDS_SYM;
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BuildMI(BB, Opc, 1, Result).addGlobalAddress(cast<GlobalAddressSDNode>(Address)->getGlobal());
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}
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else if (ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(Address)) {
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@ -370,7 +373,7 @@ unsigned ISel::SelectExprFP(SDOperand N, unsigned Result)
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{
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Select(Chain);
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Tmp2 = SelectExpr(Address);
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Opc = DestType == MVT::f64 ? Alpha::LDS : Alpha::LDT;
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Opc = DestType == MVT::f64 ? Alpha::LDT : Alpha::LDS;
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BuildMI(BB, Opc, 2, Result).addImm(0).addReg(Tmp2);
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}
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return Result;
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@ -379,6 +382,8 @@ unsigned ISel::SelectExprFP(SDOperand N, unsigned Result)
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if (ConstantFPSDNode *CN = dyn_cast<ConstantFPSDNode>(N)) {
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if (CN->isExactlyValue(+0.0)) {
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BuildMI(BB, Alpha::CPYS, 2, Result).addReg(Alpha::F31).addReg(Alpha::F31);
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} else if ( CN->isExactlyValue(-0.0)) {
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BuildMI(BB, Alpha::CPYSN, 2, Result).addReg(Alpha::F31).addReg(Alpha::F31);
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} else {
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abort();
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}
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@ -409,15 +414,15 @@ unsigned ISel::SelectExprFP(SDOperand N, unsigned Result)
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Tmp2 = MakeReg(MVT::f32);
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if (ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(N.getOperand(1)))
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if (Node->getValueType(0) == MVT::f64) {
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assert(cast<MVTSDNode>(Node)->getExtraValueType() == MVT::f32 &&
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"Bad EXTLOAD!");
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AlphaLowering.restoreGP(BB);
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BuildMI(BB, Alpha::LDS_SYM, 1, Tmp2).addConstantPoolIndex(CP->getIndex());
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BuildMI(BB, Alpha::CVTST, 1, Result).addReg(Tmp2);
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return Result;
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}
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assert(cast<MVTSDNode>(Node)->getExtraValueType() == MVT::f32 && "EXTLOAD not from f32");
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assert(Node->getValueType(0) == MVT::f64 && "EXTLOAD not to f64");
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if (ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(N.getOperand(1))) {
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AlphaLowering.restoreGP(BB);
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BuildMI(BB, Alpha::LDS_SYM, 1, Tmp2).addConstantPoolIndex(CP->getIndex());
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BuildMI(BB, Alpha::CVTST, 1, Result).addReg(Tmp2);
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return Result;
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}
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Select(Node->getOperand(0)); // chain
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Tmp1 = SelectExpr(Node->getOperand(1));
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BuildMI(BB, Alpha::LDS, 1, Tmp2).addReg(Tmp1);
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