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remove some dead code. t2addrmode_imm8s4 is never used in a

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pattern, so there is no need to define a matching function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113122 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2010-09-05 22:51:11 +00:00
parent 223c92c9cd
commit 979b061819
2 changed files with 1 additions and 32 deletions
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30
lib/Target/ARM/ARMISelDAGToDAG.cpp
View File

@ -113,8 +113,6 @@ public:
SDValue &OffImm);
bool SelectT2AddrModeImm8Offset(SDNode *Op, SDValue N,
SDValue &OffImm);
bool SelectT2AddrModeImm8s4(SDNode *Op, SDValue N, SDValue &Base,
SDValue &OffImm);
bool SelectT2AddrModeSoReg(SDNode *Op, SDValue N, SDValue &Base,
SDValue &OffReg, SDValue &ShImm);
@ -797,34 +795,6 @@ bool ARMDAGToDAGISel::SelectT2AddrModeImm8Offset(SDNode *Op, SDValue N,
return false;
}
bool ARMDAGToDAGISel::SelectT2AddrModeImm8s4(SDNode *Op, SDValue N,
SDValue &Base, SDValue &OffImm) {
if (N.getOpcode() == ISD::ADD) {
if (ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1))) {
int RHSC = (int)RHS->getZExtValue();
// 8 bits.
if (((RHSC & 0x3) == 0) &&
((RHSC >= 0 && RHSC < 0x400) || (RHSC < 0 && RHSC > -0x400))) {
Base = N.getOperand(0);
OffImm = CurDAG->getTargetConstant(RHSC, MVT::i32);
return true;
}
}
} else if (N.getOpcode() == ISD::SUB) {
if (ConstantSDNode *RHS = dyn_cast<ConstantSDNode>(N.getOperand(1))) {
int RHSC = (int)RHS->getZExtValue();
// 8 bits.
if (((RHSC & 0x3) == 0) && (RHSC >= 0 && RHSC < 0x400)) {
Base = N.getOperand(0);
OffImm = CurDAG->getTargetConstant(-RHSC, MVT::i32);
return true;
}
}
}
return false;
}
bool ARMDAGToDAGISel::SelectT2AddrModeSoReg(SDNode *Op, SDValue N,
SDValue &Base,
SDValue &OffReg, SDValue &ShImm) {

3
lib/Target/ARM/ARMInstrThumb2.td
View File

@ -145,8 +145,7 @@ def t2am_imm8_offset : Operand<i32>,
}
// t2addrmode_imm8s4 := reg +/- (imm8 << 2)
def t2addrmode_imm8s4 : Operand<i32>,
ComplexPattern<i32, 2, "SelectT2AddrModeImm8s4", []> {
def t2addrmode_imm8s4 : Operand<i32> {
let PrintMethod = "printT2AddrModeImm8s4Operand";
let MIOperandInfo = (ops GPR:$base, i32imm:$offsimm);
}