constant propagate a method away.

llvm-svn: 95408

1 files changed, 5 insertions, 8 deletions

diff --git a/llvm/lib/Target/X86/X86ISelLowering.cpp b/llvm/lib/Target/X86/X86ISelLowering.cpp
index f641b11336b..05419fe3cc4 100644
--- a/llvm/lib/Target/X86/X86ISelLowering.cpp
+++ b/llvm/lib/Target/X86/X86ISelLowering.cpp
@@ -7025,16 +7025,12 @@ SDValue X86TargetLowering::LowerTRAMPOLINE(SDValue Op,
 
   const Value *TrmpAddr = cast<SrcValueSDNode>(Op.getOperand(4))->getValue();
 
-  const X86InstrInfo *TII =
-    ((X86TargetMachine&)getTargetMachine()).getInstrInfo();
-
   if (Subtarget->is64Bit()) {
     SDValue OutChains[6];
 
     // Large code-model.
-
-    const unsigned char JMP64r  = TII->getBaseOpcodeForOpcode(X86::JMP64r);
-    const unsigned char MOV64ri = TII->getBaseOpcodeForOpcode(X86::MOV64ri);
+    const unsigned char JMP64r  = 0xFF; // 64-bit jmp through register opcode.
+    const unsigned char MOV64ri = 0xB8; // X86::MOV64ri opcode.
 
     const unsigned char N86R10 = RegInfo->getX86RegNum(X86::R10);
     const unsigned char N86R11 = RegInfo->getX86RegNum(X86::R11);
@@ -7129,7 +7125,8 @@ SDValue X86TargetLowering::LowerTRAMPOLINE(SDValue Op,
                        DAG.getConstant(10, MVT::i32));
     Disp = DAG.getNode(ISD::SUB, dl, MVT::i32, FPtr, Addr);
 
-    const unsigned char MOV32ri = TII->getBaseOpcodeForOpcode(X86::MOV32ri);
+    // This is storing the opcode for MOV32ri.
+    const unsigned char MOV32ri = 0xB8; // X86::MOV32ri's opcode byte.
     const unsigned char N86Reg = RegInfo->getX86RegNum(NestReg);
     OutChains[0] = DAG.getStore(Root, dl,
                                 DAG.getConstant(MOV32ri|N86Reg, MVT::i8),
@@ -7139,7 +7136,7 @@ SDValue X86TargetLowering::LowerTRAMPOLINE(SDValue Op,
                        DAG.getConstant(1, MVT::i32));
     OutChains[1] = DAG.getStore(Root, dl, Nest, Addr, TrmpAddr, 1, false, 1);
 
-    const unsigned char JMP = TII->getBaseOpcodeForOpcode(X86::JMP);
+    const unsigned char JMP = 0xE9; // jmp <32bit dst> opcode.
     Addr = DAG.getNode(ISD::ADD, dl, MVT::i32, Trmp,
                        DAG.getConstant(5, MVT::i32));
     OutChains[2] = DAG.getStore(Root, dl, DAG.getConstant(JMP, MVT::i8), Addr,