1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
//===-- AssemblerUtils.h ----------------------------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_UNITTESTS_TOOLS_LLVMEXEGESIS_ASSEMBLERUTILS_H
#define LLVM_UNITTESTS_TOOLS_LLVMEXEGESIS_ASSEMBLERUTILS_H
#include "Assembler.h"
#include "BenchmarkRunner.h"
#include "Target.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/CodeGen/MachineInstrBuilder.h"
#include "llvm/CodeGen/TargetInstrInfo.h"
#include "llvm/CodeGen/TargetSubtargetInfo.h"
#include "llvm/MC/MCInstBuilder.h"
#include "llvm/Support/Host.h"
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
namespace llvm {
namespace exegesis {
class MachineFunctionGeneratorBaseTest : public ::testing::Test {
protected:
MachineFunctionGeneratorBaseTest(const std::string &TT,
const std::string &CpuName)
: TT(TT), CpuName(CpuName),
CanExecute(llvm::Triple(TT).getArch() ==
llvm::Triple(llvm::sys::getProcessTriple()).getArch()),
ET(ExegesisTarget::lookup(llvm::Triple(TT))) {
assert(ET);
if (!CanExecute) {
llvm::outs() << "Skipping execution, host:"
<< llvm::sys::getProcessTriple() << ", target:" << TT
<< "\n";
}
}
template <class... Bs>
inline void Check(llvm::ArrayRef<RegisterValue> RegisterInitialValues,
llvm::MCInst MCInst, Bs... Bytes) {
ExecutableFunction Function =
(MCInst.getOpcode() == 0)
? assembleToFunction(RegisterInitialValues, {})
: assembleToFunction(RegisterInitialValues, {MCInst});
ASSERT_THAT(Function.getFunctionBytes().str(),
testing::ElementsAre(Bytes...));
if (CanExecute) {
BenchmarkRunner::ScratchSpace Scratch;
Function(Scratch.ptr());
}
}
private:
std::unique_ptr<llvm::LLVMTargetMachine> createTargetMachine() {
std::string Error;
const llvm::Target *TheTarget =
llvm::TargetRegistry::lookupTarget(TT, Error);
EXPECT_TRUE(TheTarget) << Error << " " << TT;
const llvm::TargetOptions Options;
llvm::TargetMachine *TM = TheTarget->createTargetMachine(
TT, CpuName, "", Options, llvm::Reloc::Model::Static);
EXPECT_TRUE(TM) << TT << " " << CpuName;
return std::unique_ptr<llvm::LLVMTargetMachine>(
static_cast<llvm::LLVMTargetMachine *>(TM));
}
ExecutableFunction
assembleToFunction(llvm::ArrayRef<RegisterValue> RegisterInitialValues,
llvm::ArrayRef<llvm::MCInst> Instructions) {
llvm::SmallString<256> Buffer;
llvm::raw_svector_ostream AsmStream(Buffer);
assembleToStream(*ET, createTargetMachine(), /*LiveIns=*/{},
RegisterInitialValues, Instructions, AsmStream);
return ExecutableFunction(createTargetMachine(),
getObjectFromBuffer(AsmStream.str()));
}
const std::string TT;
const std::string CpuName;
const bool CanExecute;
const ExegesisTarget *const ET;
};
} // namespace exegesis
} // namespace llvm
#endif
|
