SrcValueSDNode *TrmpSV = cast<SrcValueSDNode>(Op.getOperand(4));
+ const X86InstrInfo *TII =
+ ((X86TargetMachine&)getTargetMachine()).getInstrInfo();
+
if (Subtarget->is64Bit()) {
- return SDOperand(); // not yet supported
+ SDOperand OutChains[6];
+
+ // Large code-model.
+
+ const unsigned char JMP64r = TII->getBaseOpcodeFor(X86::JMP64r);
+ const unsigned char MOV64ri = TII->getBaseOpcodeFor(X86::MOV64ri);
+
+ const unsigned char N86R10 =
+ ((X86RegisterInfo*)RegInfo)->getX86RegNum(X86::R10);
+ const unsigned char N86R11 =
+ ((X86RegisterInfo*)RegInfo)->getX86RegNum(X86::R11);
+
+ const unsigned char REX_WB = 0x40 | 0x08 | 0x01; // REX prefix
+
+ // Load the pointer to the nested function into R11.
+ unsigned OpCode = ((MOV64ri | N86R11) << 8) | REX_WB; // movabsq r11
+ SDOperand Addr = Trmp;
+ OutChains[0] = DAG.getStore(Root, DAG.getConstant(OpCode, MVT::i16), Addr,
+ TrmpSV->getValue(), TrmpSV->getOffset());
+
+ Addr = DAG.getNode(ISD::ADD, MVT::i64, Trmp, DAG.getConstant(2, MVT::i64));
+ OutChains[1] = DAG.getStore(Root, FPtr, Addr, TrmpSV->getValue(),
+ TrmpSV->getOffset() + 2, false, 2);
+
+ // Load the 'nest' parameter value into R10.
+ // R10 is specified in X86CallingConv.td
+ OpCode = ((MOV64ri | N86R10) << 8) | REX_WB; // movabsq r10
+ Addr = DAG.getNode(ISD::ADD, MVT::i64, Trmp, DAG.getConstant(10, MVT::i64));
+ OutChains[2] = DAG.getStore(Root, DAG.getConstant(OpCode, MVT::i16), Addr,
+ TrmpSV->getValue(), TrmpSV->getOffset() + 10);
+
+ Addr = DAG.getNode(ISD::ADD, MVT::i64, Trmp, DAG.getConstant(12, MVT::i64));
+ OutChains[3] = DAG.getStore(Root, Nest, Addr, TrmpSV->getValue(),
+ TrmpSV->getOffset() + 12, false, 2);
+
+ // Jump to the nested function.
+ OpCode = (JMP64r << 8) | REX_WB; // jmpq *...
+ Addr = DAG.getNode(ISD::ADD, MVT::i64, Trmp, DAG.getConstant(20, MVT::i64));
+ OutChains[4] = DAG.getStore(Root, DAG.getConstant(OpCode, MVT::i16), Addr,
+ TrmpSV->getValue(), TrmpSV->getOffset() + 20);
+
+ unsigned char ModRM = N86R11 | (4 << 3) | (3 << 6); // ...r11
+ Addr = DAG.getNode(ISD::ADD, MVT::i64, Trmp, DAG.getConstant(22, MVT::i64));
+ OutChains[5] = DAG.getStore(Root, DAG.getConstant(ModRM, MVT::i8), Addr,
+ TrmpSV->getValue(), TrmpSV->getOffset() + 22);
+
+ SDOperand Ops[] =
+ { Trmp, DAG.getNode(ISD::TokenFactor, MVT::Other, OutChains, 6) };
+ return DAG.getNode(ISD::MERGE_VALUES, Op.Val->getVTList(), Ops, 2);
} else {
Function *Func = (Function *)
cast<Function>(cast<SrcValueSDNode>(Op.getOperand(5))->getValue());
break;
}
- const X86InstrInfo *TII =
- ((X86TargetMachine&)getTargetMachine()).getInstrInfo();
-
SDOperand OutChains[4];
SDOperand Addr, Disp;
Addr = DAG.getNode(ISD::ADD, MVT::i32, Trmp, DAG.getConstant(10, MVT::i32));
Disp = DAG.getNode(ISD::SUB, MVT::i32, FPtr, Addr);
- unsigned char MOV32ri = TII->getBaseOpcodeFor(X86::MOV32ri);
- unsigned char N86Reg = ((X86RegisterInfo*)RegInfo)->getX86RegNum(NestReg);
+ const unsigned char MOV32ri = TII->getBaseOpcodeFor(X86::MOV32ri);
+ const unsigned char N86Reg =
+ ((X86RegisterInfo*)RegInfo)->getX86RegNum(NestReg);
OutChains[0] = DAG.getStore(Root, DAG.getConstant(MOV32ri|N86Reg, MVT::i8),
Trmp, TrmpSV->getValue(), TrmpSV->getOffset());
OutChains[1] = DAG.getStore(Root, Nest, Addr, TrmpSV->getValue(),
TrmpSV->getOffset() + 1, false, 1);
- unsigned char JMP = TII->getBaseOpcodeFor(X86::JMP);
+ const unsigned char JMP = TII->getBaseOpcodeFor(X86::JMP);
Addr = DAG.getNode(ISD::ADD, MVT::i32, Trmp, DAG.getConstant(5, MVT::i32));
OutChains[2] = DAG.getStore(Root, DAG.getConstant(JMP, MVT::i8), Addr,
TrmpSV->getValue() + 5, TrmpSV->getOffset());