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[Triple] Add isThumb and isARM functions.

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Summary:
isThumb returns true for Thumb triples (little and big endian), isARM
returns true for ARM triples (little and big endian).
There are a few more checks using arm/thumb that are not covered by
those functions, e.g. that the architecture is either ARM or Thumb
(little endian) or ARM/Thumb little endian only.

Reviewers: javed.absar, rengolin, kristof.beyls, t.p.northover

Reviewed By: rengolin

Subscribers: llvm-commits, aemerson

Differential Revision: https://reviews.llvm.org/D34682

llvm-svn: 310781
This commit is contained in:
Florian Hahn 2017-08-12 17:40:18 +00:00
parent 4285fd5a57
commit ac5f3d563c
6 changed files with 15 additions and 15 deletions
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10
include/llvm/ADT/Triple.h
View File

@ -630,6 +630,16 @@ public:
return getArch() == Triple::nvptx || getArch() == Triple::nvptx64;
}
/// Tests whether the target is Thumb (little and big endian).
bool isThumb() const {
return getArch() == Triple::thumb || getArch() == Triple::thumbeb;
}
/// Tests whether the target is ARM (little and big endian).
bool isARM() const {
return getArch() == Triple::arm || getArch() == Triple::armeb;
}
/// Tests wether the target supports comdat
bool supportsCOMDAT() const { return !isOSBinFormatMachO(); }

3
lib/MC/MCSectionELF.cpp
View File

@ -113,8 +113,7 @@ void MCSectionELF::PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
OS << 'c';
if (Flags & ELF::XCORE_SHF_DP_SECTION)
OS << 'd';
} else if (Arch == Triple::arm || Arch == Triple::armeb ||
Arch == Triple::thumb || Arch == Triple::thumbeb) {
} else if (T.isARM() || T.isThumb()) {
if (Flags & ELF::SHF_ARM_PURECODE)
OS << 'y';
}

3
lib/Object/ELFObjectFile.cpp
View File

@ -260,8 +260,7 @@ void ELFObjectFileBase::setARMSubArch(Triple &TheTriple) const {
std::string Triple;
// Default to ARM, but use the triple if it's been set.
if (TheTriple.getArch() == Triple::thumb ||
TheTriple.getArch() == Triple::thumbeb)
if (TheTriple.isThumb())
Triple = "thumb";
else
Triple = "arm";

6
lib/Target/ARM/ARMAsmPrinter.cpp
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@ -476,11 +476,7 @@ void ARMAsmPrinter::EmitStartOfAsmFile(Module &M) {
// Use the triple's architecture and subarchitecture to determine
// if we're thumb for the purposes of the top level code16 assembler
// flag.
bool isThumb = TT.getArch() == Triple::thumb ||
TT.getArch() == Triple::thumbeb ||
TT.getSubArch() == Triple::ARMSubArch_v7m ||
TT.getSubArch() == Triple::ARMSubArch_v6m;
if (!M.getModuleInlineAsm().empty() && isThumb)
if (!M.getModuleInlineAsm().empty() && TT.isThumb())
OutStreamer->EmitAssemblerFlag(MCAF_Code16);
}

3
lib/Target/ARM/ARMAsmPrinter.h
View File

@ -135,8 +135,7 @@ public:
const Triple &TT = TM.getTargetTriple();
if (!TT.isOSBinFormatMachO())
return 0;
bool isThumb = TT.getArch() == Triple::thumb ||
TT.getArch() == Triple::thumbeb ||
bool isThumb = TT.isThumb() ||
TT.getSubArch() == Triple::ARMSubArch_v7m ||
TT.getSubArch() == Triple::ARMSubArch_v6m;
return isThumb ? ARM::DW_ISA_ARM_thumb : ARM::DW_ISA_ARM_arm;

5
lib/Target/ARM/MCTargetDesc/ARMMCTargetDesc.cpp
View File

@ -131,16 +131,13 @@ static bool getARMLoadDeprecationInfo(MCInst &MI, const MCSubtargetInfo &STI,
#include "ARMGenSubtargetInfo.inc"
std::string ARM_MC::ParseARMTriple(const Triple &TT, StringRef CPU) {
bool isThumb =
TT.getArch() == Triple::thumb || TT.getArch() == Triple::thumbeb;
std::string ARMArchFeature;
ARM::ArchKind ArchID = ARM::parseArch(TT.getArchName());
if (ArchID != ARM::ArchKind::INVALID && (CPU.empty() || CPU == "generic"))
ARMArchFeature = (ARMArchFeature + "+" + ARM::getArchName(ArchID)).str();
if (isThumb) {
if (TT.isThumb()) {
if (ARMArchFeature.empty())
ARMArchFeature = "+thumb-mode";
else