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GlobalISel: Allow constructing SrcOp/DstOp from MachineOperand

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llvm-svn: 353080
This commit is contained in:
Matt Arsenault 2019-02-04 19:53:19 +00:00
parent 2c72ad2c8a
commit 2b7c211da1
2 changed files with 27 additions and 0 deletions
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2
include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
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@ -66,6 +66,7 @@ class DstOp {
public:
enum class DstType { Ty_LLT, Ty_Reg, Ty_RC };
DstOp(unsigned R) : Reg(R), Ty(DstType::Ty_Reg) {}
DstOp(const MachineOperand &Op) : Reg(Op.getReg()), Ty(DstType::Ty_Reg) {}
DstOp(const LLT &T) : LLTTy(T), Ty(DstType::Ty_LLT) {}
DstOp(const TargetRegisterClass *TRC) : RC(TRC), Ty(DstType::Ty_RC) {}
@ -125,6 +126,7 @@ class SrcOp {
public:
enum class SrcType { Ty_Reg, Ty_MIB, Ty_Predicate };
SrcOp(unsigned R) : Reg(R), Ty(SrcType::Ty_Reg) {}
SrcOp(const MachineOperand &Op) : Reg(Op.getReg()), Ty(SrcType::Ty_Reg) {}
SrcOp(const MachineInstrBuilder &MIB) : SrcMIB(MIB), Ty(SrcType::Ty_MIB) {}
SrcOp(const CmpInst::Predicate P) : Pred(P), Ty(SrcType::Ty_Predicate) {}

25
unittests/CodeGen/GlobalISel/MachineIRBuilderTest.cpp
View File

@ -65,3 +65,28 @@ TEST_F(GISelMITest, TestBuildConstantFConstantDeath) {
#endif
#endif
TEST_F(GISelMITest, DstOpSrcOp) {
if (!TM)
return;
SmallVector<unsigned, 4> Copies;
collectCopies(Copies, MF);
LLT s64 = LLT::scalar(64);
auto MIBAdd = B.buildAdd(s64, Copies[0], Copies[1]);
// Test SrcOp and DstOp can be constructed directly from MachineOperand by
// copying the instruction
B.buildAdd(MIBAdd->getOperand(0), MIBAdd->getOperand(1), MIBAdd->getOperand(2));
auto CheckStr = R"(
; CHECK: [[COPY0:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[ADD:%[0-9]+]]:_(s64) = G_ADD [[COPY0]]:_, [[COPY1]]:_
; CHECK: [[ADD]]:_(s64) = G_ADD [[COPY0]]:_, [[COPY1]]:_
)";
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}