https://github.com/tangaac created
https://github.com/llvm/llvm-project/pull/115832
None
>From 10d2d8e0be2faeedcdfe67d97f3e2f89a3770a71 Mon Sep 17 00:00:00 2001
From: tangaac <tangya...@loongson.cn>
Date: Fri, 8 Nov 2024 17:04:19 +0800
Subject: [PATCH] add la v1.1 features for getHostCPUFeatures
---
clang/lib/Driver/ToolChains/Arch/LoongArch.cpp | 7 ++++++-
llvm/lib/TargetParser/Host.cpp | 9 +++++++++
2 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/clang/lib/Driver/ToolChains/Arch/LoongArch.cpp
b/clang/lib/Driver/ToolChains/Arch/LoongArch.cpp
index e69a5562137ccd..2dc7550176f5f0 100644
--- a/clang/lib/Driver/ToolChains/Arch/LoongArch.cpp
+++ b/clang/lib/Driver/ToolChains/Arch/LoongArch.cpp
@@ -135,8 +135,13 @@ void loongarch::getLoongArchTargetFeatures(const Driver &D,
Features.push_back("+lsx");
std::string ArchName;
- if (const Arg *A = Args.getLastArg(options::OPT_march_EQ))
+ if (const Arg *A = Args.getLastArg(options::OPT_march_EQ)) {
ArchName = A->getValue();
+ if (ArchName == "native")
+ for (auto &F : llvm::sys::getHostCPUFeatures())
+ Features.push_back(
+ Args.MakeArgString((F.second ? "+" : "-") + F.first()));
+ }
ArchName = postProcessTargetCPUString(ArchName, Triple);
llvm::LoongArch::getArchFeatures(ArchName, Features);
diff --git a/llvm/lib/TargetParser/Host.cpp b/llvm/lib/TargetParser/Host.cpp
index 58ba2553633221..d0f3bbc26716e7 100644
--- a/llvm/lib/TargetParser/Host.cpp
+++ b/llvm/lib/TargetParser/Host.cpp
@@ -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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