56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
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//=====-- NVPTXTargetStreamer.h - NVPTX Target Streamer ------*- 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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#ifndef LLVM_LIB_TARGET_NVPTX_MCTARGETDESC_NVPTXTARGETSTREAMER_H
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#define LLVM_LIB_TARGET_NVPTX_MCTARGETDESC_NVPTXTARGETSTREAMER_H
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#include "llvm/MC/MCStreamer.h"
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namespace llvm {
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class MCSection;
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/// Implments NVPTX-specific streamer.
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class NVPTXTargetStreamer : public MCTargetStreamer {
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private:
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SmallVector<std::string, 4> DwarfFiles;
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bool HasSections = false;
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public:
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NVPTXTargetStreamer(MCStreamer &S);
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~NVPTXTargetStreamer() override;
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/// Outputs the list of the DWARF '.file' directives to the streamer.
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void outputDwarfFileDirectives();
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/// Close last section.
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void closeLastSection();
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/// Record DWARF file directives for later output.
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/// According to PTX ISA, CUDA Toolkit documentation, 11.5.3. Debugging
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/// Directives: .file
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/// (http://docs.nvidia.com/cuda/parallel-thread-execution/index.html#debugging-directives-file),
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/// The .file directive is allowed only in the outermost scope, i.e., at the
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/// same level as kernel and device function declarations. Also, the order of
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/// the .loc and .file directive does not matter, .file directives may follow
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/// the .loc directives where the file is referenced.
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/// LLVM emits .file directives immediately the location debug info is
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/// emitted, i.e. they may be emitted inside functions. We gather all these
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/// directives and emit them outside of the sections and, thus, outside of the
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/// functions.
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void emitDwarfFileDirective(StringRef Directive) override;
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void changeSection(const MCSection *CurSection, MCSection *Section,
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const MCExpr *SubSection, raw_ostream &OS) override;
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/// Emit the bytes in \p Data into the output.
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///
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/// This is used to emit bytes in \p Data as sequence of .byte directives.
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void emitRawBytes(StringRef Data) override;
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};
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} // end namespace llvm
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#endif
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