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| author | 2020-08-03 15:06:44 +0000 | |
|---|---|---|
| committer | 2020-08-03 15:06:44 +0000 | |
| commit | b64793999546ed8adebaeebd9d8345d18db8927d (patch) | |
| tree | 4357c27b561d73b0e089727c6ed659f2ceff5f47 /gnu/llvm/unittests/MC/DwarfLineTables.cpp | |
| parent | Add support for UTF-8 DISPLAY-HINTs with octet length. For now only (diff) | |
| download | wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.tar.xz wireguard-openbsd-b64793999546ed8adebaeebd9d8345d18db8927d.zip | |
Remove LLVM 8.0.1 files.
Diffstat (limited to 'gnu/llvm/unittests/MC/DwarfLineTables.cpp')
| -rw-r--r-- | gnu/llvm/unittests/MC/DwarfLineTables.cpp | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/gnu/llvm/unittests/MC/DwarfLineTables.cpp b/gnu/llvm/unittests/MC/DwarfLineTables.cpp deleted file mode 100644 index 1b1a4d647ce..00000000000 --- a/gnu/llvm/unittests/MC/DwarfLineTables.cpp +++ /dev/null @@ -1,183 +0,0 @@ -//===- llvm/unittest/MC/DwarfLineTables.cpp ------------------------------===// -// -// The LLVM Compiler Infrastructure -// -// This file is distributed under the University of Illinois Open Source -// License. See LICENSE.TXT for details. -// -//===----------------------------------------------------------------------===// - -#include "llvm/ADT/STLExtras.h" -#include "llvm/BinaryFormat/Dwarf.h" -#include "llvm/MC/MCAsmInfo.h" -#include "llvm/MC/MCContext.h" -#include "llvm/MC/MCDwarf.h" -#include "llvm/MC/MCRegisterInfo.h" -#include "llvm/Support/TargetRegistry.h" -#include "llvm/Support/TargetSelect.h" -#include "gtest/gtest.h" - -using namespace llvm; - -namespace { -struct Context { - const char *Triple = "x86_64-pc-linux"; - std::unique_ptr<MCRegisterInfo> MRI; - std::unique_ptr<MCAsmInfo> MAI; - std::unique_ptr<MCContext> Ctx; - - Context() { - llvm::InitializeAllTargetInfos(); - llvm::InitializeAllTargetMCs(); - llvm::InitializeAllDisassemblers(); - - // If we didn't build x86, do not run the test. - std::string Error; - const Target *TheTarget = TargetRegistry::lookupTarget(Triple, Error); - if (!TheTarget) - return; - - MRI.reset(TheTarget->createMCRegInfo(Triple)); - MAI.reset(TheTarget->createMCAsmInfo(*MRI, Triple)); - Ctx = llvm::make_unique<MCContext>(MAI.get(), MRI.get(), nullptr); - } - - operator bool() { return Ctx.get(); } - operator MCContext &() { return *Ctx; }; -}; - -Context &getContext() { - static Context Ctxt; - return Ctxt; -} -} - -void verifyEncoding(MCDwarfLineTableParams Params, int LineDelta, int AddrDelta, - ArrayRef<uint8_t> ExpectedEncoding) { - SmallString<16> Buffer; - raw_svector_ostream EncodingOS(Buffer); - MCDwarfLineAddr::Encode(getContext(), Params, LineDelta, AddrDelta, - EncodingOS); - ArrayRef<uint8_t> Encoding(reinterpret_cast<uint8_t *>(Buffer.data()), - Buffer.size()); - EXPECT_EQ(ExpectedEncoding, Encoding); -} - -TEST(DwarfLineTables, TestDefaultParams) { - if (!getContext()) - return; - - MCDwarfLineTableParams Params; - - // Minimal line offset expressible through extended opcode, 0 addr delta - const uint8_t Encoding0[] = {13}; // Special opcode Addr += 0, Line += -5 - verifyEncoding(Params, -5, 0, Encoding0); - - // Maximal line offset expressible through extended opcode, - const uint8_t Encoding1[] = {26}; // Special opcode Addr += 0, Line += +8 - verifyEncoding(Params, 8, 0, Encoding1); - - // Random value in the middle of the special ocode range - const uint8_t Encoding2[] = {146}; // Special opcode Addr += 9, Line += 2 - verifyEncoding(Params, 2, 9, Encoding2); - - // Minimal line offset expressible through extended opcode, max addr delta - const uint8_t Encoding3[] = {251}; // Special opcode Addr += 17, Line += -5 - verifyEncoding(Params, -5, 17, Encoding3); - - // Biggest special opcode - const uint8_t Encoding4[] = {255}; // Special opcode Addr += 17, Line += -1 - verifyEncoding(Params, -1, 17, Encoding4); - - // Line delta outside of the special opcode range, address delta in range - const uint8_t Encoding5[] = {dwarf::DW_LNS_advance_line, 9, - 158}; // Special opcode Addr += 10, Line += 0 - verifyEncoding(Params, 9, 10, Encoding5); - - // Address delta outside of the special opcode range, but small - // enough to do DW_LNS_const_add_pc + special opcode. - const uint8_t Encoding6[] = {dwarf::DW_LNS_const_add_pc, // pc += 17 - 62}; // Special opcode Addr += 3, Line += 2 - verifyEncoding(Params, 2, 20, Encoding6); - - // Address delta big enough to require the use of DW_LNS_advance_pc - // Line delta in special opcode range - const uint8_t Encoding7[] = {dwarf::DW_LNS_advance_pc, 100, - 20}; // Special opcode Addr += 0, Line += 2 - verifyEncoding(Params, 2, 100, Encoding7); - - // No special opcode possible. - const uint8_t Encoding8[] = {dwarf::DW_LNS_advance_line, 20, - dwarf::DW_LNS_advance_pc, 100, - dwarf::DW_LNS_copy}; - verifyEncoding(Params, 20, 100, Encoding8); -} - -TEST(DwarfLineTables, TestCustomParams) { - if (!getContext()) - return; - - // Some tests against the example values given in the standard. - MCDwarfLineTableParams Params; - Params.DWARF2LineOpcodeBase = 13; - Params.DWARF2LineBase = -3; - Params.DWARF2LineRange = 12; - - // Minimal line offset expressible through extended opcode, 0 addr delta - const uint8_t Encoding0[] = {13}; // Special opcode Addr += 0, Line += -5 - verifyEncoding(Params, -3, 0, Encoding0); - - // Maximal line offset expressible through extended opcode, - const uint8_t Encoding1[] = {24}; // Special opcode Addr += 0, Line += +8 - verifyEncoding(Params, 8, 0, Encoding1); - - // Random value in the middle of the special ocode range - const uint8_t Encoding2[] = {126}; // Special opcode Addr += 9, Line += 2 - verifyEncoding(Params, 2, 9, Encoding2); - - // Minimal line offset expressible through extended opcode, max addr delta - const uint8_t Encoding3[] = {253}; // Special opcode Addr += 20, Line += -3 - verifyEncoding(Params, -3, 20, Encoding3); - - // Biggest special opcode - const uint8_t Encoding4[] = {255}; // Special opcode Addr += 17, Line += -1 - verifyEncoding(Params, -1, 20, Encoding4); - - // Line delta outside of the special opcode range, address delta in range - const uint8_t Encoding5[] = {dwarf::DW_LNS_advance_line, 9, - 136}; // Special opcode Addr += 10, Line += 0 - verifyEncoding(Params, 9, 10, Encoding5); - - // Address delta outside of the special opcode range, but small - // enough to do DW_LNS_const_add_pc + special opcode. - const uint8_t Encoding6[] = {dwarf::DW_LNS_const_add_pc, // pc += 20 - 138}; // Special opcode Addr += 10, Line += 2 - verifyEncoding(Params, 2, 30, Encoding6); - - // Address delta big enough to require the use of DW_LNS_advance_pc - // Line delta in special opcode range - const uint8_t Encoding7[] = {dwarf::DW_LNS_advance_pc, 100, - 18}; // Special opcode Addr += 0, Line += 2 - verifyEncoding(Params, 2, 100, Encoding7); - - // No special opcode possible. - const uint8_t Encoding8[] = {dwarf::DW_LNS_advance_line, 20, - dwarf::DW_LNS_advance_pc, 100, - dwarf::DW_LNS_copy}; - verifyEncoding(Params, 20, 100, Encoding8); -} - -TEST(DwarfLineTables, TestCustomParams2) { - if (!getContext()) - return; - - // Corner case param values. - MCDwarfLineTableParams Params; - Params.DWARF2LineOpcodeBase = 13; - Params.DWARF2LineBase = 1; - Params.DWARF2LineRange = 255; - - const uint8_t Encoding0[] = {dwarf::DW_LNS_advance_line, 248, 1, - dwarf::DW_LNS_copy}; - verifyEncoding(Params, 248, 0, Encoding0); -} |
