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[fast-isel] Add support for ORs with non-legal types. 

llvm-svn: 150045
This commit is contained in:
Chad Rosier 2012-02-08 02:29:21 +00:00
parent 3bc0e0c651
commit bd471255a9
2 changed files with 49 additions and 2 deletions
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15
llvm/lib/Target/ARM/ARMFastISel.cpp
View File

@ -1733,7 +1733,6 @@ bool ARMFastISel::SelectRem(const Instruction *I, bool isSigned) {
}
bool ARMFastISel::SelectBinaryIntOp(const Instruction *I, unsigned ISDOpcode) {
assert (ISDOpcode == ISD::ADD && "Expected an add.");
EVT DestVT = TLI.getValueType(I->getType(), true);
// We can get here in the case when we have a binary operation on a non-legal
@ -1741,6 +1740,17 @@ bool ARMFastISel::SelectBinaryIntOp(const Instruction *I, unsigned ISDOpcode) {
if (DestVT != MVT::i16 && DestVT != MVT::i8 && DestVT != MVT::i1)
return false;
unsigned Opc;
switch (ISDOpcode) {
default: return false;
case ISD::ADD:
Opc = isThumb2 ? ARM::t2ADDrr : ARM::ADDrr;
break;
case ISD::OR:
Opc = isThumb2 ? ARM::t2ORRrr : ARM::ORRrr;
break;
}
unsigned SrcReg1 = getRegForValue(I->getOperand(0));
if (SrcReg1 == 0) return false;
@ -1749,7 +1759,6 @@ bool ARMFastISel::SelectBinaryIntOp(const Instruction *I, unsigned ISDOpcode) {
unsigned SrcReg2 = getRegForValue(I->getOperand(1));
if (SrcReg2 == 0) return false;
unsigned Opc = isThumb2 ? ARM::t2ADDrr : ARM::ADDrr;
unsigned ResultReg = createResultReg(TLI.getRegClassFor(MVT::i32));
AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL,
TII.get(Opc), ResultReg)
@ -2498,6 +2507,8 @@ bool ARMFastISel::TargetSelectInstruction(const Instruction *I) {
return SelectFPToI(I, /*isSigned*/ false);
case Instruction::Add:
return SelectBinaryIntOp(I, ISD::ADD);
case Instruction::Or:
return SelectBinaryIntOp(I, ISD::OR);
case Instruction::FAdd:
return SelectBinaryFPOp(I, ISD::FADD);
case Instruction::FSub:

36
llvm/test/CodeGen/ARM/fast-isel-binary.ll
View File

@ -38,3 +38,39 @@ entry:
store i16 %0, i16* %a.addr, align 4
ret void
}
define void @or_i1(i1 %a, i1 %b) nounwind ssp {
entry:
; ARM: or_i1
; THUMB: or_i1
%a.addr = alloca i1, align 4
%0 = or i1 %a, %b
; ARM: orr r0, r0, r1
; THUMB: orrs r0, r1
store i1 %0, i1* %a.addr, align 4
ret void
}
define void @or_i8(i8 %a, i8 %b) nounwind ssp {
entry:
; ARM: or_i8
; THUMB: or_i8
%a.addr = alloca i8, align 4
%0 = or i8 %a, %b
; ARM: orr r0, r0, r1
; THUMB: orrs r0, r1
store i8 %0, i8* %a.addr, align 4
ret void
}
define void @or_i16(i16 %a, i16 %b) nounwind ssp {
entry:
; ARM: or_i16
; THUMB: or_i16
%a.addr = alloca i16, align 4
%0 = or i16 %a, %b
; ARM: orr r0, r0, r1
; THUMB: orrs r0, r1
store i16 %0, i16* %a.addr, align 4
ret void
}