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a8af86a953
This reapplies commits: r330271, r330592, r330779.
[DEBUG] Initial adaptation of NVPTX target for debug info emission.
Summary:
Patch adds initial emission of the debug info for NVPTX target.
Currently, only .file and .loc directives are emitted, everything else is
commented out to not break the compilation of Cuda.
llvm-svn: 332689
47 lines
1.8 KiB
C++
47 lines
1.8 KiB
C++
//=====-- NVPTXTargetStreamer.h - NVPTX Target Streamer ------*- 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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#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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public:
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NVPTXTargetStreamer(MCStreamer &S);
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~NVPTXTargetStreamer() override;
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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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};
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} // end namespace llvm
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#endif
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