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https://github.com/c64scene-ar/llvm-6502.git
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[Triple] Add a helper to switch between big/little endian variants
This will be used from clang's driver. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241527 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
parent
34be8041b3
commit
32f3dc455b
@ -569,6 +569,22 @@ public:
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/// architecture if no such variant can be found.
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/// architecture if no such variant can be found.
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llvm::Triple get64BitArchVariant() const;
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llvm::Triple get64BitArchVariant() const;
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/// Form a triple with a big endian variant of the current architecture.
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///
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/// This can be used to move across "families" of architectures where useful.
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///
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/// \returns A new triple with a big endian architecture or an unknown
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/// architecture if no such variant can be found.
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llvm::Triple getBigEndianArchVariant() const;
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/// Form a triple with a little endian variant of the current architecture.
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///
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/// This can be used to move across "families" of architectures where useful.
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///
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/// \returns A new triple with a little endian architecture or an unknown
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/// architecture if no such variant can be found.
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llvm::Triple getLittleEndianArchVariant() const;
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/// Get the (LLVM) name of the minimum ARM CPU for the arch we are targeting.
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/// Get the (LLVM) name of the minimum ARM CPU for the arch we are targeting.
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///
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///
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/// \param Arch the architecture name (e.g., "armv7s"). If it is an empty
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/// \param Arch the architecture name (e.g., "armv7s"). If it is an empty
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@ -1165,6 +1165,122 @@ Triple Triple::get64BitArchVariant() const {
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return T;
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return T;
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}
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}
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Triple Triple::getBigEndianArchVariant() const {
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Triple T(*this);
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switch (getArch()) {
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case Triple::UnknownArch:
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case Triple::amdgcn:
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case Triple::amdil64:
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case Triple::amdil:
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case Triple::hexagon:
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case Triple::hsail64:
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case Triple::hsail:
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case Triple::kalimba:
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case Triple::le32:
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case Triple::le64:
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case Triple::msp430:
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case Triple::nvptx64:
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case Triple::nvptx:
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case Triple::r600:
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case Triple::shave:
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case Triple::spir64:
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case Triple::spir:
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case Triple::wasm32:
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case Triple::wasm64:
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case Triple::x86:
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case Triple::x86_64:
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case Triple::xcore:
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// ARM is intentionally unsupported here, changing the architecture would
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// drop any arch suffixes.
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case Triple::arm:
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case Triple::thumb:
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T.setArch(UnknownArch);
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break;
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case Triple::aarch64_be:
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case Triple::armeb:
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case Triple::bpfeb:
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case Triple::mips64:
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case Triple::mips:
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case Triple::ppc64:
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case Triple::ppc:
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case Triple::sparc:
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case Triple::sparcv9:
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case Triple::systemz:
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case Triple::tce:
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case Triple::thumbeb:
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// Already big endian.
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break;
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case Triple::aarch64: T.setArch(Triple::aarch64_be); break;
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case Triple::bpfel: T.setArch(Triple::bpfeb); break;
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case Triple::mips64el:T.setArch(Triple::mips64); break;
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case Triple::mipsel: T.setArch(Triple::mips); break;
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case Triple::ppc64le: T.setArch(Triple::ppc64); break;
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case Triple::sparcel: T.setArch(Triple::sparc); break;
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}
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return T;
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}
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Triple Triple::getLittleEndianArchVariant() const {
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Triple T(*this);
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switch (getArch()) {
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case Triple::UnknownArch:
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case Triple::ppc:
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case Triple::sparcv9:
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case Triple::systemz:
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case Triple::tce:
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// ARM is intentionally unsupported here, changing the architecture would
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// drop any arch suffixes.
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case Triple::armeb:
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case Triple::thumbeb:
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T.setArch(UnknownArch);
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break;
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case Triple::aarch64:
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case Triple::amdgcn:
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case Triple::amdil64:
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case Triple::amdil:
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case Triple::arm:
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case Triple::bpfel:
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case Triple::hexagon:
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case Triple::hsail64:
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case Triple::hsail:
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case Triple::kalimba:
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case Triple::le32:
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case Triple::le64:
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case Triple::mips64el:
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case Triple::mipsel:
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case Triple::msp430:
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case Triple::nvptx64:
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case Triple::nvptx:
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case Triple::ppc64le:
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case Triple::r600:
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case Triple::shave:
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case Triple::sparcel:
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case Triple::spir64:
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case Triple::spir:
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case Triple::thumb:
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case Triple::wasm32:
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case Triple::wasm64:
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case Triple::x86:
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case Triple::x86_64:
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case Triple::xcore:
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// Already little endian.
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break;
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case Triple::aarch64_be: T.setArch(Triple::aarch64); break;
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case Triple::bpfeb: T.setArch(Triple::bpfel); break;
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case Triple::mips64: T.setArch(Triple::mips64el); break;
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case Triple::mips: T.setArch(Triple::mipsel); break;
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case Triple::ppc64: T.setArch(Triple::ppc64le); break;
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case Triple::sparc: T.setArch(Triple::sparcel); break;
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}
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return T;
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}
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const char *Triple::getARMCPUForArch(StringRef MArch) const {
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const char *Triple::getARMCPUForArch(StringRef MArch) const {
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if (MArch.empty())
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if (MArch.empty())
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MArch = getArchName();
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MArch = getArchName();
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@ -553,6 +553,84 @@ TEST(TripleTest, BitWidthArchVariants) {
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EXPECT_EQ(Triple::wasm64, T.get64BitArchVariant().getArch());
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EXPECT_EQ(Triple::wasm64, T.get64BitArchVariant().getArch());
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}
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}
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TEST(TripleTest, EndianArchVariants) {
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Triple T;
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EXPECT_EQ(Triple::UnknownArch, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::UnknownArch, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::UnknownArch);
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EXPECT_EQ(Triple::UnknownArch, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::UnknownArch, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::aarch64_be);
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EXPECT_EQ(Triple::aarch64_be, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::aarch64, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::aarch64);
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EXPECT_EQ(Triple::aarch64_be, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::aarch64, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::armeb);
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EXPECT_EQ(Triple::armeb, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::UnknownArch, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::arm);
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EXPECT_EQ(Triple::UnknownArch, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::arm, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::bpfeb);
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EXPECT_EQ(Triple::bpfeb, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::bpfel, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::bpfel);
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EXPECT_EQ(Triple::bpfeb, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::bpfel, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::mips64);
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EXPECT_EQ(Triple::mips64, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::mips64el, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::mips64el);
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EXPECT_EQ(Triple::mips64, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::mips64el, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::mips);
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EXPECT_EQ(Triple::mips, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::mipsel, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::mipsel);
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EXPECT_EQ(Triple::mips, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::mipsel, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::ppc);
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EXPECT_EQ(Triple::ppc, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::UnknownArch, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::ppc64);
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EXPECT_EQ(Triple::ppc64, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::ppc64le, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::ppc64le);
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EXPECT_EQ(Triple::ppc64, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::ppc64le, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::sparc);
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EXPECT_EQ(Triple::sparc, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::sparcel, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::sparcel);
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EXPECT_EQ(Triple::sparc, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::sparcel, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::thumb);
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EXPECT_EQ(Triple::UnknownArch, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::thumb, T.getLittleEndianArchVariant().getArch());
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T.setArch(Triple::thumbeb);
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EXPECT_EQ(Triple::thumbeb, T.getBigEndianArchVariant().getArch());
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EXPECT_EQ(Triple::UnknownArch, T.getLittleEndianArchVariant().getArch());
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}
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TEST(TripleTest, getOSVersion) {
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TEST(TripleTest, getOSVersion) {
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Triple T;
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Triple T;
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unsigned Major, Minor, Micro;
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unsigned Major, Minor, Micro;
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