[InstCombine] Signed saturation patterns
[llvm-complete.git] / lib / Target / AMDGPU / MCTargetDesc / AMDGPUMCAsmInfo.cpp
blob9e04ab9bae930df525137a1fc4f00a19ff348321
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 //===----------------------------------------------------------------------===//
10 #include "AMDGPUMCAsmInfo.h"
11 #include "llvm/ADT/Triple.h"
12 #include "llvm/MC/MCSubtargetInfo.h"
13 #include "MCTargetDesc/AMDGPUMCTargetDesc.h"
15 using namespace llvm;
17 AMDGPUMCAsmInfo::AMDGPUMCAsmInfo(const Triple &TT) : MCAsmInfoELF() {
18 CodePointerSize = (TT.getArch() == Triple::amdgcn) ? 8 : 4;
19 StackGrowsUp = true;
20 HasSingleParameterDotFile = false;
21 //===------------------------------------------------------------------===//
22 MinInstAlignment = 4;
24 // This is the maximum instruction encoded size for gfx10. With a known
25 // subtarget, it can be reduced to 8 bytes.
26 MaxInstLength = (TT.getArch() == Triple::amdgcn) ? 20 : 16;
27 SeparatorString = "\n";
28 CommentString = ";";
29 PrivateLabelPrefix = "";
30 InlineAsmStart = ";#ASMSTART";
31 InlineAsmEnd = ";#ASMEND";
33 //===--- Data Emission Directives -------------------------------------===//
34 SunStyleELFSectionSwitchSyntax = true;
35 UsesELFSectionDirectiveForBSS = true;
37 //===--- Global Variable Emission Directives --------------------------===//
38 HasAggressiveSymbolFolding = true;
39 COMMDirectiveAlignmentIsInBytes = false;
40 HasNoDeadStrip = true;
41 WeakRefDirective = ".weakref\t";
42 //===--- Dwarf Emission Directives -----------------------------------===//
43 SupportsDebugInformation = true;
46 bool AMDGPUMCAsmInfo::shouldOmitSectionDirective(StringRef SectionName) const {
47 return SectionName == ".hsatext" || SectionName == ".hsadata_global_agent" ||
48 SectionName == ".hsadata_global_program" ||
49 SectionName == ".hsarodata_readonly_agent" ||
50 MCAsmInfo::shouldOmitSectionDirective(SectionName);
53 unsigned AMDGPUMCAsmInfo::getMaxInstLength(const MCSubtargetInfo *STI) const {
54 if (!STI || STI->getTargetTriple().getArch() == Triple::r600)
55 return MaxInstLength;
57 // Maximum for NSA encoded images
58 if (STI->getFeatureBits()[AMDGPU::FeatureNSAEncoding])
59 return 20;
61 // 64-bit instruction with 32-bit literal.
62 if (STI->getFeatureBits()[AMDGPU::FeatureVOP3Literal])
63 return 12;
65 return 8;