unsigned ARMFastISel::ARMMaterializeInt(const Constant *C, MVT VT) {
if (VT != MVT::i32 && VT != MVT::i16 && VT != MVT::i8 && VT != MVT::i1)
- return false;
+ return 0;
// If we can do this in a single instruction without a constant pool entry
// do so now.
}
}
+ unsigned ResultReg = 0;
if (Subtarget->useMovt(*FuncInfo.MF))
- if (FastEmit_i(VT, VT, ISD::Constant, CI->getZExtValue()))
- return true;
+ ResultReg = FastEmit_i(VT, VT, ISD::Constant, CI->getZExtValue());
+
+ if (ResultReg)
+ return ResultReg;
// Load from constant pool. For now 32-bit only.
if (VT != MVT::i32)
- return false;
-
- unsigned DestReg = createResultReg(TLI.getRegClassFor(VT));
+ return 0;
// MachineConstantPool wants an explicit alignment.
unsigned Align = DL.getPrefTypeAlignment(C->getType());
Align = DL.getTypeAllocSize(C->getType());
}
unsigned Idx = MCP.getConstantPoolIndex(C, Align);
-
+ ResultReg = createResultReg(TLI.getRegClassFor(VT));
if (isThumb2)
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
- TII.get(ARM::t2LDRpci), DestReg)
- .addConstantPoolIndex(Idx));
+ TII.get(ARM::t2LDRpci), ResultReg)
+ .addConstantPoolIndex(Idx));
else {
// The extra immediate is for addrmode2.
- DestReg = constrainOperandRegClass(TII.get(ARM::LDRcp), DestReg, 0);
+ ResultReg = constrainOperandRegClass(TII.get(ARM::LDRcp), ResultReg, 0);
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DbgLoc,
- TII.get(ARM::LDRcp), DestReg)
- .addConstantPoolIndex(Idx)
- .addImm(0));
+ TII.get(ARM::LDRcp), ResultReg)
+ .addConstantPoolIndex(Idx)
+ .addImm(0));
}
-
- return DestReg;
+ return ResultReg;
}
unsigned ARMFastISel::ARMMaterializeGV(const GlobalValue *GV, MVT VT) {