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a26aa42625
Summary: Made it convert from register to stack based instructions, and removed the registers. Fixes to related code that was expecting register based instructions. Added the correct testing flag to all tests, depending on what the format they were expecting so far. Translated one test to stack format as example: reg-stackify-stack.ll tested: llvm-lit -v `find test -name WebAssembly` unittests/MC/* Reviewers: dschuff, sunfish Subscribers: sbc100, jgravelle-google, eraman, aheejin, llvm-commits, jfb Differential Revision: https://reviews.llvm.org/D51241 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@340750 91177308-0d34-0410-b5e6-96231b3b80d8
108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
//===- llvm/unittest/Object/Disassembler.cpp ------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm-c/Disassembler.h"
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#include "llvm/Support/TargetSelect.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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static const char *symbolLookupCallback(void *DisInfo, uint64_t ReferenceValue,
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uint64_t *ReferenceType,
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uint64_t ReferencePC,
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const char **ReferenceName) {
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*ReferenceType = LLVMDisassembler_ReferenceType_InOut_None;
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return nullptr;
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}
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TEST(Disassembler, X86Test) {
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llvm::InitializeAllTargetInfos();
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llvm::InitializeAllTargetMCs();
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llvm::InitializeAllDisassemblers();
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uint8_t Bytes[] = {0x90, 0x90, 0xeb, 0xfd};
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uint8_t *BytesP = Bytes;
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const char OutStringSize = 100;
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char OutString[OutStringSize];
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LLVMDisasmContextRef DCR = LLVMCreateDisasm("x86_64-pc-linux", nullptr, 0,
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nullptr, symbolLookupCallback);
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if (!DCR)
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return;
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size_t InstSize;
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unsigned NumBytes = sizeof(Bytes);
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unsigned PC = 0;
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InstSize = LLVMDisasmInstruction(DCR, BytesP, NumBytes, PC, OutString,
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OutStringSize);
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EXPECT_EQ(InstSize, 1U);
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EXPECT_EQ(StringRef(OutString), "\tnop");
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PC += InstSize;
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BytesP += InstSize;
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NumBytes -= InstSize;
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InstSize = LLVMDisasmInstruction(DCR, BytesP, NumBytes, PC, OutString,
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OutStringSize);
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EXPECT_EQ(InstSize, 1U);
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EXPECT_EQ(StringRef(OutString), "\tnop");
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PC += InstSize;
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BytesP += InstSize;
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NumBytes -= InstSize;
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InstSize = LLVMDisasmInstruction(DCR, BytesP, NumBytes, PC, OutString,
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OutStringSize);
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EXPECT_EQ(InstSize, 2U);
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EXPECT_EQ(StringRef(OutString), "\tjmp\t0x1");
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LLVMDisasmDispose(DCR);
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}
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TEST(Disassembler, WebAssemblyTest) {
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llvm::InitializeAllTargetInfos();
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llvm::InitializeAllTargetMCs();
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llvm::InitializeAllDisassemblers();
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uint8_t Bytes[] = {0x6a, 0x42, 0x7F, 0x35, 0x01, 0x10};
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uint8_t *BytesP = Bytes;
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const char OutStringSize = 100;
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char OutString[OutStringSize];
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LLVMDisasmContextRef DCR = LLVMCreateDisasm("wasm32-unknown-unknown", nullptr,
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0, nullptr, symbolLookupCallback);
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if (!DCR)
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return;
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size_t InstSize;
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unsigned NumBytes = sizeof(Bytes);
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unsigned PC = 0;
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InstSize = LLVMDisasmInstruction(DCR, BytesP, NumBytes, PC, OutString,
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OutStringSize);
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EXPECT_EQ(InstSize, 1U);
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EXPECT_EQ(StringRef(OutString), "\ti32.add ");
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PC += InstSize;
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BytesP += InstSize;
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NumBytes -= InstSize;
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InstSize = LLVMDisasmInstruction(DCR, BytesP, NumBytes, PC, OutString,
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OutStringSize);
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EXPECT_EQ(InstSize, 2U);
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EXPECT_EQ(StringRef(OutString), "\ti64.const\t-1");
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PC += InstSize;
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BytesP += InstSize;
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NumBytes -= InstSize;
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InstSize = LLVMDisasmInstruction(DCR, BytesP, NumBytes, PC, OutString,
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OutStringSize);
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EXPECT_EQ(InstSize, 3U);
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EXPECT_EQ(StringRef(OutString), "\ti64.load32_u\t16:p2align=1");
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LLVMDisasmDispose(DCR);
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}
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