99 lines
3 KiB
C++
99 lines
3 KiB
C++
//===--- W65816.h - Declare W65816 target feature support -------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares W65816 TargetInfo objects.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_LIB_BASIC_TARGETS_W65816_H
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#define LLVM_CLANG_LIB_BASIC_TARGETS_W65816_H
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#include "clang/Basic/TargetInfo.h"
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#include "clang/Basic/TargetOptions.h"
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#include "llvm/Support/Compiler.h"
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#include "llvm/TargetParser/Triple.h"
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namespace clang {
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namespace targets {
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class LLVM_LIBRARY_VISIBILITY W65816TargetInfo : public TargetInfo {
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static const char *const GCCRegNames[];
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public:
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W65816TargetInfo(const llvm::Triple &Triple, const TargetOptions &)
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: TargetInfo(Triple) {
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TLSSupported = false;
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IntWidth = 16;
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IntAlign = 16;
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LongWidth = 32;
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LongLongWidth = 64;
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LongAlign = LongLongAlign = 16;
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FloatWidth = 32;
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FloatAlign = 16;
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DoubleWidth = LongDoubleWidth = 64;
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DoubleAlign = LongDoubleAlign = 16;
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PointerWidth = 32;
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PointerAlign = 16;
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SuitableAlign = 16;
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SizeType = UnsignedLong;
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IntMaxType = SignedLongLong;
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IntPtrType = SignedLong;
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PtrDiffType = SignedLong;
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SigAtomicType = SignedLong;
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resetDataLayout("e-m:e-p:32:16-i16:16-i32:16-i64:16-f32:16-f64:16-a:8-n8:16-S8");
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}
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void getTargetDefines(const LangOptions &Opts,
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MacroBuilder &Builder) const override;
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llvm::SmallVector<Builtin::InfosShard> getTargetBuiltins() const override {
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return {};
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}
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bool allowsLargerPreferedTypeAlignment() const override { return false; }
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bool hasFeature(StringRef Feature) const override {
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return Feature == "w65816";
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}
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ArrayRef<const char *> getGCCRegNames() const override;
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ArrayRef<TargetInfo::GCCRegAlias> getGCCRegAliases() const override {
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return {};
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}
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bool validateAsmConstraint(const char *&Name,
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TargetInfo::ConstraintInfo &info) const override {
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// Single-char constraints for the W65816's three real registers.
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// 'a' / 'x' / 'y' are direct register-class constraints; 'r'
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// means any allocatable register (we route to A by default).
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// The backend's getRegForInlineAsmConstraint resolves these to
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// physical registers. Without listing them here, clang's frontend
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// rejects `=a` etc. before the backend ever sees them.
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switch (*Name) {
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case 'a':
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case 'x':
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case 'y':
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case 'r':
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info.setAllowsRegister();
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return true;
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default:
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return false;
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}
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}
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std::string_view getClobbers() const override { return ""; }
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BuiltinVaListKind getBuiltinVaListKind() const override {
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return TargetInfo::CharPtrBuiltinVaList;
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}
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};
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} // namespace targets
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} // namespace clang
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#endif // LLVM_CLANG_LIB_BASIC_TARGETS_W65816_H
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