mirror of
https://github.com/c64scene-ar/llvm-6502.git
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b6ea67e027
Simplifying Triple::parseARMArch, leaving all the parsing to ARMTargetParser.
This commit also adds AArch64 detection to ARMTargetParser canonicalization,
and a two RedHat arch names (v{6,7}hl, meaning hard-float / little-endian).
Adding enough unit tests to cover the basics. Clang checks fine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237902 91177308-0d34-0410-b5e6-96231b3b80d8
146 lines
3.3 KiB
C++
146 lines
3.3 KiB
C++
//===-- TargetParser - Parser for target features ---------------*- C++ -*-===//
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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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//
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// This file implements a target parser to recognise hardware features such as
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// FPU/CPU/ARCH names as well as specific support such as HDIV, etc.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_SUPPORT_TARGETPARSER_H
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#define LLVM_SUPPORT_TARGETPARSER_H
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namespace llvm {
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class StringRef;
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// Target specific information into their own namespaces. These should be
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// generated from TableGen because the information is already there, and there
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// is where new information about targets will be added.
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// FIXME: To TableGen this we need to make some table generated files available
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// even if the back-end is not compiled with LLVM, plus we need to create a new
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// back-end to TableGen to create these clean tables.
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namespace ARM {
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// FPU names.
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enum FPUKind {
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FK_INVALID = 0,
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FK_VFP,
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FK_VFPV2,
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FK_VFPV3,
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FK_VFPV3_D16,
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FK_VFPV4,
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FK_VFPV4_D16,
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FK_FPV5_D16,
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FK_FP_ARMV8,
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FK_NEON,
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FK_NEON_VFPV4,
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FK_NEON_FP_ARMV8,
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FK_CRYPTO_NEON_FP_ARMV8,
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FK_SOFTVFP,
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FK_LAST
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};
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// Arch names.
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enum ArchKind {
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AK_INVALID = 0,
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AK_ARMV2,
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AK_ARMV2A,
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AK_ARMV3,
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AK_ARMV3M,
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AK_ARMV4,
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AK_ARMV4T,
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AK_ARMV5,
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AK_ARMV5T,
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AK_ARMV5TE,
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AK_ARMV6,
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AK_ARMV6J,
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AK_ARMV6K,
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AK_ARMV6T2,
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AK_ARMV6Z,
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AK_ARMV6ZK,
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AK_ARMV6M,
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AK_ARMV7,
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AK_ARMV7A,
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AK_ARMV7R,
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AK_ARMV7M,
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AK_ARMV8A,
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AK_ARMV8_1A,
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// Non-standard Arch names.
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AK_IWMMXT,
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AK_IWMMXT2,
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AK_XSCALE,
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AK_ARMV5E,
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AK_ARMV5TEJ,
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AK_ARMV6SM,
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AK_ARMV6HL,
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AK_ARMV7L,
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AK_ARMV7HL,
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AK_ARMV7S,
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AK_ARMV7EM,
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AK_LAST
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};
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// Arch extension modifiers for CPUs.
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enum ArchExtKind {
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AEK_INVALID = 0,
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AEK_CRC,
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AEK_CRYPTO,
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AEK_FP,
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AEK_HWDIV,
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AEK_MP,
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AEK_SEC,
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AEK_VIRT,
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AEK_LAST
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};
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// ISA kinds.
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enum ISAKind {
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IK_INVALID = 0,
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IK_ARM,
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IK_THUMB,
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IK_AARCH64
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};
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// Endianness
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// FIXME: BE8 vs. BE32?
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enum EndianKind {
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EK_INVALID = 0,
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EK_LITTLE,
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EK_BIG
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};
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} // namespace ARM
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// Target Parsers, one per architecture.
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class ARMTargetParser {
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static StringRef getFPUSynonym(StringRef FPU);
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static StringRef getArchSynonym(StringRef Arch);
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public:
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static StringRef getCanonicalArchName(StringRef Arch);
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// Information by ID
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static const char * getFPUName(unsigned FPUKind);
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static const char * getArchName(unsigned ArchKind);
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static unsigned getArchDefaultCPUArch(unsigned ArchKind);
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static const char * getArchDefaultCPUName(unsigned ArchKind);
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static const char * getArchExtName(unsigned ArchExtKind);
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static const char * getDefaultCPU(StringRef Arch);
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// Parser
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static unsigned parseFPU(StringRef FPU);
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static unsigned parseArch(StringRef Arch);
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static unsigned parseArchExt(StringRef ArchExt);
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static unsigned parseCPUArch(StringRef CPU);
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static unsigned parseArchISA(StringRef Arch);
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static unsigned parseArchEndian(StringRef Arch);
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};
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} // namespace llvm
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#endif
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