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| //===- MachineIRBuilderTest.cpp -------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "GISelMITest.h"
#include "llvm/CodeGen/GlobalISel/MachineIRBuilder.h"
TEST_F(GISelMITest, TestBuildConstantFConstant) {
setUp();
if (!TM)
return;
B.buildConstant(LLT::scalar(32), 42);
B.buildFConstant(LLT::scalar(32), 1.0);
B.buildConstant(LLT::vector(2, 32), 99);
B.buildFConstant(LLT::vector(2, 32), 2.0);
// Test APFloat overload.
APFloat KVal(APFloat::IEEEdouble(), "4.0");
B.buildFConstant(LLT::scalar(64), KVal);
auto CheckStr = R"(
CHECK: [[CONST0:%[0-9]+]]:_(s32) = G_CONSTANT i32 42
CHECK: [[FCONST0:%[0-9]+]]:_(s32) = G_FCONSTANT float 1.000000e+00
CHECK: [[CONST1:%[0-9]+]]:_(s32) = G_CONSTANT i32 99
CHECK: [[VEC0:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[CONST1]]:_(s32), [[CONST1]]:_(s32)
CHECK: [[FCONST1:%[0-9]+]]:_(s32) = G_FCONSTANT float 2.000000e+00
CHECK: [[VEC1:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[FCONST1]]:_(s32), [[FCONST1]]:_(s32)
CHECK: [[FCONST2:%[0-9]+]]:_(s64) = G_FCONSTANT double 4.000000e+00
)";
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}
#ifdef GTEST_HAS_DEATH_TEST
#ifndef NDEBUG
TEST_F(GISelMITest, TestBuildConstantFConstantDeath) {
setUp();
if (!TM)
return;
LLVMContext &Ctx = MF->getFunction().getContext();
APInt APV32(32, 12345);
// Test APInt version breaks
EXPECT_DEATH(B.buildConstant(LLT::scalar(16), APV32),
"creating constant with the wrong size");
EXPECT_DEATH(B.buildConstant(LLT::vector(2, 16), APV32),
"creating constant with the wrong size");
// Test ConstantInt version breaks
ConstantInt *CI = ConstantInt::get(Ctx, APV32);
EXPECT_DEATH(B.buildConstant(LLT::scalar(16), *CI),
"creating constant with the wrong size");
EXPECT_DEATH(B.buildConstant(LLT::vector(2, 16), *CI),
"creating constant with the wrong size");
APFloat DoubleVal(APFloat::IEEEdouble());
ConstantFP *CF = ConstantFP::get(Ctx, DoubleVal);
EXPECT_DEATH(B.buildFConstant(LLT::scalar(16), *CF),
"creating fconstant with the wrong size");
EXPECT_DEATH(B.buildFConstant(LLT::vector(2, 16), *CF),
"creating fconstant with the wrong size");
}
#endif
#endif
TEST_F(GISelMITest, DstOpSrcOp) {
setUp();
if (!TM)
return;
SmallVector<Register, 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;
}
TEST_F(GISelMITest, BuildUnmerge) {
setUp();
if (!TM)
return;
SmallVector<Register, 4> Copies;
collectCopies(Copies, MF);
B.buildUnmerge(LLT::scalar(32), Copies[0]);
B.buildUnmerge(LLT::scalar(16), Copies[1]);
auto CheckStr = R"(
; CHECK: [[COPY0:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[UNMERGE32_0:%[0-9]+]]:_(s32), [[UNMERGE32_1:%[0-9]+]]:_(s32) = G_UNMERGE_VALUES [[COPY0]]
; CHECK: [[UNMERGE16_0:%[0-9]+]]:_(s16), [[UNMERGE16_1:%[0-9]+]]:_(s16), [[UNMERGE16_2:%[0-9]+]]:_(s16), [[UNMERGE16_3:%[0-9]+]]:_(s16) = G_UNMERGE_VALUES [[COPY1]]
)";
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}
TEST_F(GISelMITest, TestBuildFPInsts) {
setUp();
if (!TM)
return;
SmallVector<Register, 4> Copies;
collectCopies(Copies, MF);
LLT S64 = LLT::scalar(64);
B.buildFAdd(S64, Copies[0], Copies[1]);
B.buildFSub(S64, Copies[0], Copies[1]);
B.buildFMA(S64, Copies[0], Copies[1], Copies[2]);
B.buildFMAD(S64, Copies[0], Copies[1], Copies[2]);
B.buildFMAD(S64, Copies[0], Copies[1], Copies[2], MachineInstr::FmNoNans);
B.buildFNeg(S64, Copies[0]);
B.buildFAbs(S64, Copies[0]);
B.buildFCopysign(S64, Copies[0], Copies[1]);
auto CheckStr = R"(
; CHECK: [[COPY0:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[COPY2:%[0-9]+]]:_(s64) = COPY $x2
; CHECK: [[FADD:%[0-9]+]]:_(s64) = G_FADD [[COPY0]]:_, [[COPY1]]:_
; CHECK: [[FSUB:%[0-9]+]]:_(s64) = G_FSUB [[COPY0]]:_, [[COPY1]]:_
; CHECK: [[FMA:%[0-9]+]]:_(s64) = G_FMA [[COPY0]]:_, [[COPY1]]:_, [[COPY2]]:_
; CHECK: [[FMAD0:%[0-9]+]]:_(s64) = G_FMAD [[COPY0]]:_, [[COPY1]]:_, [[COPY2]]:_
; CHECK: [[FMAD1:%[0-9]+]]:_(s64) = nnan G_FMAD [[COPY0]]:_, [[COPY1]]:_, [[COPY2]]:_
; CHECK: [[FNEG:%[0-9]+]]:_(s64) = G_FNEG [[COPY0]]:_
; CHECK: [[FABS:%[0-9]+]]:_(s64) = G_FABS [[COPY0]]:_
; CHECK: [[FCOPYSIGN:%[0-9]+]]:_(s64) = G_FCOPYSIGN [[COPY0]]:_, [[COPY1]]:_
)";
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}
TEST_F(GISelMITest, BuildIntrinsic) {
setUp();
if (!TM)
return;
LLT S64 = LLT::scalar(64);
SmallVector<Register, 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<Register, 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;
}
TEST_F(GISelMITest, BuildXor) {
setUp();
if (!TM)
return;
LLT S64 = LLT::scalar(64);
LLT S128 = LLT::scalar(128);
SmallVector<Register, 4> Copies;
collectCopies(Copies, MF);
B.buildXor(S64, Copies[0], Copies[1]);
B.buildNot(S64, Copies[0]);
// Make sure this works with > 64-bit types
auto Merge = B.buildMerge(S128, {Copies[0], Copies[1]});
B.buildNot(S128, Merge);
auto CheckStr = R"(
; CHECK: [[COPY0:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[XOR0:%[0-9]+]]:_(s64) = G_XOR [[COPY0]]:_, [[COPY1]]:_
; CHECK: [[NEGONE64:%[0-9]+]]:_(s64) = G_CONSTANT i64 -1
; CHECK: [[XOR1:%[0-9]+]]:_(s64) = G_XOR [[COPY0]]:_, [[NEGONE64]]:_
; CHECK: [[MERGE:%[0-9]+]]:_(s128) = G_MERGE_VALUES [[COPY0]]:_(s64), [[COPY1]]:_(s64)
; CHECK: [[NEGONE128:%[0-9]+]]:_(s128) = G_CONSTANT i128 -1
; CHECK: [[XOR2:%[0-9]+]]:_(s128) = G_XOR [[MERGE]]:_, [[NEGONE128]]:_
)";
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}
TEST_F(GISelMITest, BuildBitCounts) {
setUp();
if (!TM)
return;
LLT S32 = LLT::scalar(32);
SmallVector<Register, 4> Copies;
collectCopies(Copies, MF);
B.buildCTPOP(S32, Copies[0]);
B.buildCTLZ(S32, Copies[0]);
B.buildCTLZ_ZERO_UNDEF(S32, Copies[1]);
B.buildCTTZ(S32, Copies[0]);
B.buildCTTZ_ZERO_UNDEF(S32, Copies[1]);
auto CheckStr = R"(
; CHECK: [[COPY0:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[CTPOP:%[0-9]+]]:_(s32) = G_CTPOP [[COPY0]]:_
; CHECK: [[CTLZ0:%[0-9]+]]:_(s32) = G_CTLZ [[COPY0]]:_
; CHECK: [[CTLZ_UNDEF0:%[0-9]+]]:_(s32) = G_CTLZ_ZERO_UNDEF [[COPY1]]:_
; CHECK: [[CTTZ:%[0-9]+]]:_(s32) = G_CTTZ [[COPY0]]:_
; CHECK: [[CTTZ_UNDEF0:%[0-9]+]]:_(s32) = G_CTTZ_ZERO_UNDEF [[COPY1]]:_
)";
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}
TEST_F(GISelMITest, BuildCasts) {
setUp();
if (!TM)
return;
LLT S32 = LLT::scalar(32);
SmallVector<Register, 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;
}
TEST_F(GISelMITest, BuildMinMax) {
setUp();
if (!TM)
return;
LLT S64 = LLT::scalar(64);
SmallVector<Register, 4> Copies;
collectCopies(Copies, MF);
B.buildSMin(S64, Copies[0], Copies[1]);
B.buildSMax(S64, Copies[0], Copies[1]);
B.buildUMin(S64, Copies[0], Copies[1]);
B.buildUMax(S64, Copies[0], Copies[1]);
auto CheckStr = R"(
; CHECK: [[COPY0:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[SMIN0:%[0-9]+]]:_(s64) = G_SMIN [[COPY0]]:_, [[COPY1]]:_
; CHECK: [[SMAX0:%[0-9]+]]:_(s64) = G_SMAX [[COPY0]]:_, [[COPY1]]:_
; CHECK: [[UMIN0:%[0-9]+]]:_(s64) = G_UMIN [[COPY0]]:_, [[COPY1]]:_
; CHECK: [[UMAX0:%[0-9]+]]:_(s64) = G_UMAX [[COPY0]]:_, [[COPY1]]:_
)";
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}
TEST_F(GISelMITest, BuildAtomicRMW) {
setUp();
if (!TM)
return;
LLT S64 = LLT::scalar(64);
LLT P0 = LLT::pointer(0, 64);
SmallVector<Register, 4> Copies;
collectCopies(Copies, MF);
MachineMemOperand *MMO =
MF->getMachineMemOperand(
MachinePointerInfo(),
MachineMemOperand::MOLoad | MachineMemOperand::MOStore,
8, 8, AAMDNodes(), nullptr, SyncScope::System, AtomicOrdering::Unordered);
auto Ptr = B.buildUndef(P0);
B.buildAtomicRMWFAdd(S64, Ptr, Copies[0], *MMO);
B.buildAtomicRMWFSub(S64, Ptr, Copies[0], *MMO);
auto CheckStr = R"(
; CHECK: [[COPY0:%[0-9]+]]:_(s64) = COPY $x0
; CHECK: [[COPY1:%[0-9]+]]:_(s64) = COPY $x1
; CHECK: [[PTR:%[0-9]+]]:_(p0) = G_IMPLICIT_DEF
; CHECK: [[FADD:%[0-9]+]]:_(s64) = G_ATOMICRMW_FADD [[PTR]]:_(p0), [[COPY0]]:_ :: (load store unordered 8)
; CHECK: [[FSUB:%[0-9]+]]:_(s64) = G_ATOMICRMW_FSUB [[PTR]]:_(p0), [[COPY0]]:_ :: (load store unordered 8)
)";
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}
TEST_F(GISelMITest, BuildMerge) {
setUp();
if (!TM)
return;
LLT S32 = LLT::scalar(32);
Register RegC0 = B.buildConstant(S32, 0)->getOperand(0).getReg();
Register RegC1 = B.buildConstant(S32, 1)->getOperand(0).getReg();
Register RegC2 = B.buildConstant(S32, 2)->getOperand(0).getReg();
Register RegC3 = B.buildConstant(S32, 3)->getOperand(0).getReg();
// Merging plain constants as one big blob of bit should produce a
// G_MERGE_VALUES.
B.buildMerge(LLT::scalar(128), {RegC0, RegC1, RegC2, RegC3});
// Merging plain constants to a vector should produce a G_BUILD_VECTOR.
LLT V2x32 = LLT::vector(2, 32);
Register RegC0C1 =
B.buildMerge(V2x32, {RegC0, RegC1})->getOperand(0).getReg();
Register RegC2C3 =
B.buildMerge(V2x32, {RegC2, RegC3})->getOperand(0).getReg();
// Merging vector constants to a vector should produce a G_CONCAT_VECTORS.
B.buildMerge(LLT::vector(4, 32), {RegC0C1, RegC2C3});
// Merging vector constants to a plain type is not allowed.
// Nothing else to test.
auto CheckStr = R"(
; CHECK: [[C0:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; CHECK: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; CHECK: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 2
; CHECK: [[C3:%[0-9]+]]:_(s32) = G_CONSTANT i32 3
; CHECK: {{%[0-9]+}}:_(s128) = G_MERGE_VALUES [[C0]]:_(s32), [[C1]]:_(s32), [[C2]]:_(s32), [[C3]]:_(s32)
; CHECK: [[LOW2x32:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[C0]]:_(s32), [[C1]]:_(s32)
; CHECK: [[HIGH2x32:%[0-9]+]]:_(<2 x s32>) = G_BUILD_VECTOR [[C2]]:_(s32), [[C3]]:_(s32)
; CHECK: {{%[0-9]+}}:_(<4 x s32>) = G_CONCAT_VECTORS [[LOW2x32]]:_(<2 x s32>), [[HIGH2x32]]:_(<2 x s32>)
)";
EXPECT_TRUE(CheckMachineFunction(*MF, CheckStr)) << *MF;
}
|