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GlobalISel: Add fp<->int casts to MachineIRBuilder 

llvm-svn: 361019
This commit is contained in:
Matt Arsenault 2019-05-17 11:49:39 +00:00
parent 7f8ea15ffa
commit e1a2a28d6b
2 changed files with 44 additions and 0 deletions
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20
llvm/include/llvm/CodeGen/GlobalISel/MachineIRBuilder.h
View File

@ -1315,6 +1315,26 @@ public:
return buildInstr(TargetOpcode::G_FCOPYSIGN, {Dst}, {Src0, Src1});
}
/// Build and insert \p Res = G_UITOFP \p Src0
MachineInstrBuilder buildUITOFP(const DstOp &Dst, const SrcOp &Src0) {
return buildInstr(TargetOpcode::G_UITOFP, {Dst}, {Src0});
}
/// Build and insert \p Res = G_SITOFP \p Src0
MachineInstrBuilder buildSITOFP(const DstOp &Dst, const SrcOp &Src0) {
return buildInstr(TargetOpcode::G_SITOFP, {Dst}, {Src0});
}
/// Build and insert \p Res = G_FPTOUI \p Src0
MachineInstrBuilder buildFPTOUI(const DstOp &Dst, const SrcOp &Src0) {
return buildInstr(TargetOpcode::G_FPTOUI, {Dst}, {Src0});
}
/// Build and insert \p Res = G_FPTOSI \p Src0
MachineInstrBuilder buildFPTOSI(const DstOp &Dst, const SrcOp &Src0) {
return buildInstr(TargetOpcode::G_FPTOSI, {Dst}, {Src0});
}
virtual MachineInstrBuilder buildInstr(unsigned Opc, ArrayRef<DstOp> DstOps,
ArrayRef<SrcOp> SrcOps,
Optional<unsigned> Flags = None);

24
llvm/unittests/CodeGen/GlobalISel/MachineIRBuilderTest.cpp
View File

@ -229,3 +229,27 @@ TEST_F(GISelMITest, BuildBitCounts) {
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}
TEST_F(GISelMITest, BuildCasts) {
if (!TM)
return;
LLT S32 = LLT::scalar(32);
SmallVector<unsigned, 4> Copies;
collectCopies(Copies, MF);
B.buildUITOFP(S32, Copies[0]);
B.buildSITOFP(S32, Copies[0]);
B.buildFPTOUI(S32, Copies[0]);
B.buildFPTOSI(S32, Copies[0]);
auto CheckStr = R"(
; CHECK: [[COPY0:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[UITOFP:%[0-9]+]]:_(s32) = G_UITOFP [[COPY0]]:_
; CHECK: [[SITOFP:%[0-9]+]]:_(s32) = G_SITOFP [[COPY0]]:_
; CHECK: [[FPTOUI:%[0-9]+]]:_(s32) = G_FPTOUI [[COPY0]]:_
; CHECK: [[FPTOSI:%[0-9]+]]:_(s32) = G_FPTOSI [[COPY0]]:_
)";
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}