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//===-- MCTargetDesc/AMDGPUMCAsmInfo.cpp - Assembly Info ------------------===//
//
// 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
//
/// \file
//===----------------------------------------------------------------------===//
#include "AMDGPUMCAsmInfo.h"
#include "llvm/ADT/Triple.h"
#include "llvm/MC/MCSubtargetInfo.h"
#include "MCTargetDesc/AMDGPUMCTargetDesc.h"
using namespace llvm;
AMDGPUMCAsmInfo::AMDGPUMCAsmInfo(const Triple &TT) : MCAsmInfoELF() {
CodePointerSize = (TT.getArch() == Triple::amdgcn) ? 8 : 4;
StackGrowsUp = true;
HasSingleParameterDotFile = false;
//===------------------------------------------------------------------===//
MinInstAlignment = 4;
// This is the maximum instruction encoded size for gfx10. With a known
// subtarget, it can be reduced to 8 bytes.
MaxInstLength = (TT.getArch() == Triple::amdgcn) ? 20 : 16;
SeparatorString = "\n";
CommentString = ";";
PrivateLabelPrefix = "";
InlineAsmStart = ";#ASMSTART";
InlineAsmEnd = ";#ASMEND";
//===--- Data Emission Directives -------------------------------------===//
SunStyleELFSectionSwitchSyntax = true;
UsesELFSectionDirectiveForBSS = true;
//===--- Global Variable Emission Directives --------------------------===//
HasAggressiveSymbolFolding = true;
COMMDirectiveAlignmentIsInBytes = false;
HasNoDeadStrip = true;
WeakRefDirective = ".weakref\t";
//===--- Dwarf Emission Directives -----------------------------------===//
SupportsDebugInformation = true;
}
bool AMDGPUMCAsmInfo::shouldOmitSectionDirective(StringRef SectionName) const {
return SectionName == ".hsatext" || SectionName == ".hsadata_global_agent" ||
SectionName == ".hsadata_global_program" ||
SectionName == ".hsarodata_readonly_agent" ||
MCAsmInfo::shouldOmitSectionDirective(SectionName);
}
unsigned AMDGPUMCAsmInfo::getMaxInstLength(const MCSubtargetInfo *STI) const {
if (!STI || STI->getTargetTriple().getArch() == Triple::r600)
return MaxInstLength;
// Maximum for NSA encoded images
if (STI->getFeatureBits()[AMDGPU::FeatureNSAEncoding])
return 20;
// 64-bit instruction with 32-bit literal.
if (STI->getFeatureBits()[AMDGPU::FeatureVOP3Literal])
return 12;
return 8;
}
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