diff options
Diffstat (limited to 'clang/lib/Basic/Targets/Sparc.h')
| -rw-r--r-- | clang/lib/Basic/Targets/Sparc.h | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/clang/lib/Basic/Targets/Sparc.h b/clang/lib/Basic/Targets/Sparc.h new file mode 100644 index 000000000000..1f799565e99b --- /dev/null +++ b/clang/lib/Basic/Targets/Sparc.h @@ -0,0 +1,233 @@ +//===--- Sparc.h - declare sparc target feature support ---------*- 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 +// +//===----------------------------------------------------------------------===// +// +// This file declares Sparc TargetInfo objects. +// +//===----------------------------------------------------------------------===// + +#ifndef LLVM_CLANG_LIB_BASIC_TARGETS_SPARC_H +#define LLVM_CLANG_LIB_BASIC_TARGETS_SPARC_H +#include "clang/Basic/TargetInfo.h" +#include "clang/Basic/TargetOptions.h" +#include "llvm/ADT/Triple.h" +#include "llvm/Support/Compiler.h" +namespace clang { +namespace targets { +// Shared base class for SPARC v8 (32-bit) and SPARC v9 (64-bit). +class LLVM_LIBRARY_VISIBILITY SparcTargetInfo : public TargetInfo { + static const TargetInfo::GCCRegAlias GCCRegAliases[]; + static const char *const GCCRegNames[]; + bool SoftFloat; + +public: + SparcTargetInfo(const llvm::Triple &Triple, const TargetOptions &) + : TargetInfo(Triple), SoftFloat(false) {} + + int getEHDataRegisterNumber(unsigned RegNo) const override { + if (RegNo == 0) + return 24; + if (RegNo == 1) + return 25; + return -1; + } + + bool handleTargetFeatures(std::vector<std::string> &Features, + DiagnosticsEngine &Diags) override { + // Check if software floating point is enabled + auto Feature = llvm::find(Features, "+soft-float"); + if (Feature != Features.end()) { + SoftFloat = true; + } + return true; + } + void getTargetDefines(const LangOptions &Opts, + MacroBuilder &Builder) const override; + + bool hasFeature(StringRef Feature) const override; + + bool hasSjLjLowering() const override { return true; } + + ArrayRef<Builtin::Info> getTargetBuiltins() const override { + // FIXME: Implement! + return None; + } + BuiltinVaListKind getBuiltinVaListKind() const override { + return TargetInfo::VoidPtrBuiltinVaList; + } + ArrayRef<const char *> getGCCRegNames() const override; + ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override; + bool validateAsmConstraint(const char *&Name, + TargetInfo::ConstraintInfo &info) const override { + // FIXME: Implement! + switch (*Name) { + case 'I': // Signed 13-bit constant + case 'J': // Zero + case 'K': // 32-bit constant with the low 12 bits clear + case 'L': // A constant in the range supported by movcc (11-bit signed imm) + case 'M': // A constant in the range supported by movrcc (19-bit signed imm) + case 'N': // Same as 'K' but zext (required for SIMode) + case 'O': // The constant 4096 + return true; + + case 'f': + case 'e': + info.setAllowsRegister(); + return true; + } + return false; + } + const char *getClobbers() const override { + // FIXME: Implement! + return ""; + } + + // No Sparc V7 for now, the backend doesn't support it anyway. + enum CPUKind { + CK_GENERIC, + CK_V8, + CK_SUPERSPARC, + CK_SPARCLITE, + CK_F934, + CK_HYPERSPARC, + CK_SPARCLITE86X, + CK_SPARCLET, + CK_TSC701, + CK_V9, + CK_ULTRASPARC, + CK_ULTRASPARC3, + CK_NIAGARA, + CK_NIAGARA2, + CK_NIAGARA3, + CK_NIAGARA4, + CK_MYRIAD2100, + CK_MYRIAD2150, + CK_MYRIAD2155, + CK_MYRIAD2450, + CK_MYRIAD2455, + CK_MYRIAD2x5x, + CK_MYRIAD2080, + CK_MYRIAD2085, + CK_MYRIAD2480, + CK_MYRIAD2485, + CK_MYRIAD2x8x, + CK_LEON2, + CK_LEON2_AT697E, + CK_LEON2_AT697F, + CK_LEON3, + CK_LEON3_UT699, + CK_LEON3_GR712RC, + CK_LEON4, + CK_LEON4_GR740 + } CPU = CK_GENERIC; + + enum CPUGeneration { + CG_V8, + CG_V9, + }; + + CPUGeneration getCPUGeneration(CPUKind Kind) const; + + CPUKind getCPUKind(StringRef Name) const; + + bool isValidCPUName(StringRef Name) const override { + return getCPUKind(Name) != CK_GENERIC; + } + + void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override; + + bool setCPU(const std::string &Name) override { + CPU = getCPUKind(Name); + return CPU != CK_GENERIC; + } +}; + +// SPARC v8 is the 32-bit mode selected by Triple::sparc. +class LLVM_LIBRARY_VISIBILITY SparcV8TargetInfo : public SparcTargetInfo { +public: + SparcV8TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) + : SparcTargetInfo(Triple, Opts) { + resetDataLayout("E-m:e-p:32:32-i64:64-f128:64-n32-S64"); + // NetBSD / OpenBSD use long (same as llvm default); everyone else uses int. + switch (getTriple().getOS()) { + default: + SizeType = UnsignedInt; + IntPtrType = SignedInt; + PtrDiffType = SignedInt; + break; + case llvm::Triple::NetBSD: + case llvm::Triple::OpenBSD: + SizeType = UnsignedLong; + IntPtrType = SignedLong; + PtrDiffType = SignedLong; + break; + } + // Up to 32 bits are lock-free atomic, but we're willing to do atomic ops + // on up to 64 bits. + MaxAtomicPromoteWidth = 64; + MaxAtomicInlineWidth = 32; + } + + void getTargetDefines(const LangOptions &Opts, + MacroBuilder &Builder) const override; + + bool hasSjLjLowering() const override { return true; } +}; + +// SPARCV8el is the 32-bit little-endian mode selected by Triple::sparcel. +class LLVM_LIBRARY_VISIBILITY SparcV8elTargetInfo : public SparcV8TargetInfo { +public: + SparcV8elTargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) + : SparcV8TargetInfo(Triple, Opts) { + resetDataLayout("e-m:e-p:32:32-i64:64-f128:64-n32-S64"); + } +}; + +// SPARC v9 is the 64-bit mode selected by Triple::sparcv9. +class LLVM_LIBRARY_VISIBILITY SparcV9TargetInfo : public SparcTargetInfo { +public: + SparcV9TargetInfo(const llvm::Triple &Triple, const TargetOptions &Opts) + : SparcTargetInfo(Triple, Opts) { + // FIXME: Support Sparc quad-precision long double? + resetDataLayout("E-m:e-i64:64-n32:64-S128"); + // This is an LP64 platform. + LongWidth = LongAlign = PointerWidth = PointerAlign = 64; + + // OpenBSD uses long long for int64_t and intmax_t. + if (getTriple().isOSOpenBSD()) + IntMaxType = SignedLongLong; + else + IntMaxType = SignedLong; + Int64Type = IntMaxType; + + // The SPARCv8 System V ABI has long double 128-bits in size, but 64-bit + // aligned. The SPARCv9 SCD 2.4.1 says 16-byte aligned. + LongDoubleWidth = 128; + LongDoubleAlign = 128; + SuitableAlign = 128; + LongDoubleFormat = &llvm::APFloat::IEEEquad(); + MaxAtomicPromoteWidth = MaxAtomicInlineWidth = 64; + } + + void getTargetDefines(const LangOptions &Opts, + MacroBuilder &Builder) const override; + + bool isValidCPUName(StringRef Name) const override { + return getCPUGeneration(SparcTargetInfo::getCPUKind(Name)) == CG_V9; + } + + void fillValidCPUList(SmallVectorImpl<StringRef> &Values) const override; + + bool setCPU(const std::string &Name) override { + if (!SparcTargetInfo::setCPU(Name)) + return false; + return getCPUGeneration(CPU) == CG_V9; + } +}; +} // namespace targets +} // namespace clang +#endif // LLVM_CLANG_LIB_BASIC_TARGETS_SPARC_H |