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[LoongArch] add la v1.1 features for sys::getHostCPUFeatures #115832

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Merged
merged 2 commits into from
Nov 14, 2024
Merged

[LoongArch] add la v1.1 features for sys::getHostCPUFeatures #115832

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206bfe8
add la v1.1 features for sys::getHostCPUFeatures
tangaac Nov 12, 2024
1f35113
Update clang/lib/Driver/ToolChains/Arch/LoongArch.cpp
tangaac Nov 14, 2024
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9 changes: 7 additions & 2 deletions clang/lib/Driver/ToolChains/Arch/LoongArch.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -135,10 +135,15 @@ void loongarch::getLoongArchTargetFeatures(const Driver &D,
Features.push_back("+lsx");

std::string ArchName;
if (const Arg *A = Args.getLastArg(options::OPT_march_EQ))
ArchName = A->getValue();
const Arg *MArch = Args.getLastArg(options::OPT_march_EQ);
if (MArch)
ArchName = MArch->getValue();
ArchName = postProcessTargetCPUString(ArchName, Triple);
llvm::LoongArch::getArchFeatures(ArchName, Features);
if (MArch && StringRef(MArch->getValue()) == "native")
for (auto &F : llvm::sys::getHostCPUFeatures())
Features.push_back(
Args.MakeArgString((F.second ? "+" : "-") + F.first()));

// Select floating-point features determined by -mdouble-float,
// -msingle-float, -msoft-float and -mfpu.
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9 changes: 9 additions & 0 deletions llvm/lib/TargetParser/Host.cpp
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Expand Up @@ -2006,6 +2006,15 @@ const StringMap<bool> sys::getHostCPUFeatures() {
Features["lasx"] = hwcap & (1UL << 5); // HWCAP_LOONGARCH_LASX
Features["lvz"] = hwcap & (1UL << 9); // HWCAP_LOONGARCH_LVZ

Features["frecipe"] = cpucfg2 & (1U << 25); // CPUCFG.2.FRECIPE
Features["lam-bh"] = cpucfg2 & (1U << 27); // CPUCFG.2.LAM_BH

// TODO: Need to complete.
// Features["div32"] = cpucfg2 & (1U << 26); // CPUCFG.2.DIV32
// Features["lamcas"] = cpucfg2 & (1U << 28); // CPUCFG.2.LAMCAS
// Features["llacq-screl"] = cpucfg2 & (1U << 29); // CPUCFG.2.LLACQ_SCREL
// Features["scq"] = cpucfg2 & (1U << 30); // CPUCFG.2.SCQ
// Features["ld-seq-sa"] = cpucfg3 & (1U << 23); // CPUCFG.3.LD_SEQ_SA
return Features;
}
#elif defined(__linux__) && defined(__riscv)
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