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GlobalISel: Add DstOp version of buildIntrinsic

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llvm-svn: 360879
This commit is contained in:
Matt Arsenault 2019-05-16 12:22:56 +00:00
parent 85cc2962c2
commit de8e2a4b00
3 changed files with 42 additions and 0 deletions
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2
include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
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@ -797,6 +797,8 @@ public:
/// \return a MachineInstrBuilder for the newly created instruction.
MachineInstrBuilder buildIntrinsic(Intrinsic::ID ID, ArrayRef<unsigned> Res,
bool HasSideEffects);
MachineInstrBuilder buildIntrinsic(Intrinsic::ID ID, ArrayRef<DstOp> Res,
bool HasSideEffects);
/// Build and insert \p Res = G_FPTRUNC \p Op
///

12
lib/CodeGen/GlobalISel/MachineIRBuilder.cpp
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@ -634,6 +634,18 @@ MachineInstrBuilder MachineIRBuilder::buildIntrinsic(Intrinsic::ID ID,
return MIB;
}
MachineInstrBuilder MachineIRBuilder::buildIntrinsic(Intrinsic::ID ID,
ArrayRef<DstOp> Results,
bool HasSideEffects) {
auto MIB =
buildInstr(HasSideEffects ? TargetOpcode::G_INTRINSIC_W_SIDE_EFFECTS
: TargetOpcode::G_INTRINSIC);
for (DstOp Result : Results)
Result.addDefToMIB(*getMRI(), MIB);
MIB.addIntrinsicID(ID);
return MIB;
}
MachineInstrBuilder MachineIRBuilder::buildTrunc(const DstOp &Res,
const SrcOp &Op) {
return buildInstr(TargetOpcode::G_TRUNC, Res, Op);

28
unittests/CodeGen/GlobalISel/MachineIRBuilderTest.cpp
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@ -143,3 +143,31 @@ TEST_F(GISelMITest, TestBuildFPInsts) {
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}
TEST_F(GISelMITest, BuildIntrinsic) {
if (!TM)
return;
LLT S64 = LLT::scalar(64);
SmallVector<unsigned, 4> Copies;
collectCopies(Copies, MF);
// Make sure DstOp version works. sqrt is just a placeholder intrinsic.
B.buildIntrinsic(Intrinsic::sqrt, {S64}, false)
.addUse(Copies[0]);
// Make sure register version works
SmallVector<unsigned, 1> Results;
Results.push_back(MRI->createGenericVirtualRegister(S64));
B.buildIntrinsic(Intrinsic::sqrt, Results, false)
.addUse(Copies[1]);
auto CheckStr = R"(
; CHECK: [[COPY0:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[SQRT0:%[0-9]+]]:_(s64) = G_INTRINSIC intrinsic(@llvm.sqrt), [[COPY0]]:_
; CHECK: [[SQRT1:%[0-9]+]]:_(s64) = G_INTRINSIC intrinsic(@llvm.sqrt), [[COPY1]]:_
)";
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}