| 1 | //===-- MCTargetDesc/AMDGPUMCAsmInfo.cpp - Assembly Info ------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | /// \file |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | #include "AMDGPUMCAsmInfo.h" |
| 11 | #include "MCTargetDesc/AMDGPUMCTargetDesc.h" |
| 12 | #include "llvm/MC/MCSubtargetInfo.h" |
| 13 | #include "llvm/TargetParser/Triple.h" |
| 14 | |
| 15 | using namespace llvm; |
| 16 | |
| 17 | AMDGPUMCAsmInfo::AMDGPUMCAsmInfo(const Triple &TT, |
| 18 | const MCTargetOptions &Options) { |
| 19 | CodePointerSize = (TT.getArch() == Triple::amdgcn) ? 8 : 4; |
| 20 | StackGrowsUp = true; |
| 21 | HasSingleParameterDotFile = false; |
| 22 | //===------------------------------------------------------------------===// |
| 23 | MinInstAlignment = 4; |
| 24 | |
| 25 | // This is the maximum instruction encoded size for gfx10. With a known |
| 26 | // subtarget, it can be reduced to 8 bytes. |
| 27 | MaxInstLength = (TT.getArch() == Triple::amdgcn) ? 20 : 16; |
| 28 | SeparatorString = "\n"; |
| 29 | CommentString = ";"; |
| 30 | InlineAsmStart = ";#ASMSTART"; |
| 31 | InlineAsmEnd = ";#ASMEND"; |
| 32 | |
| 33 | //===--- Data Emission Directives -------------------------------------===// |
| 34 | UsesELFSectionDirectiveForBSS = true; |
| 35 | |
| 36 | //===--- Global Variable Emission Directives --------------------------===// |
| 37 | HasAggressiveSymbolFolding = true; |
| 38 | COMMDirectiveAlignmentIsInBytes = false; |
| 39 | HasNoDeadStrip = true; |
| 40 | //===--- Dwarf Emission Directives -----------------------------------===// |
| 41 | SupportsDebugInformation = true; |
| 42 | UsesCFIWithoutEH = true; |
| 43 | DwarfRegNumForCFI = true; |
| 44 | |
| 45 | UseIntegratedAssembler = false; |
| 46 | } |
| 47 | |
| 48 | bool AMDGPUMCAsmInfo::shouldOmitSectionDirective(StringRef SectionName) const { |
| 49 | return SectionName == ".hsatext"|| SectionName == ".hsadata_global_agent"|| |
| 50 | SectionName == ".hsadata_global_program"|| |
| 51 | SectionName == ".hsarodata_readonly_agent"|| |
| 52 | MCAsmInfo::shouldOmitSectionDirective(SectionName); |
| 53 | } |
| 54 | |
| 55 | unsigned AMDGPUMCAsmInfo::getMaxInstLength(const MCSubtargetInfo *STI) const { |
| 56 | if (!STI || STI->getTargetTriple().getArch() == Triple::r600) |
| 57 | return MaxInstLength; |
| 58 | |
| 59 | // Maximum for NSA encoded images |
| 60 | if (STI->hasFeature(AMDGPU::FeatureNSAEncoding)) |
| 61 | return 20; |
| 62 | |
| 63 | // 64-bit instruction with 32-bit literal. |
| 64 | if (STI->hasFeature(AMDGPU::FeatureVOP3Literal)) |
| 65 | return 12; |
| 66 | |
| 67 | return 8; |
| 68 | } |
| 69 |