https://github.com/llvmbot updated https://github.com/llvm/llvm-project/pull/143882
>From 6146a88f60492b520a36f8f8f3231e15f3cc6082 Mon Sep 17 00:00:00 2001 From: Ami-zhang <zhangli...@loongson.cn> Date: Thu, 12 Jun 2025 20:11:14 +0800 Subject: [PATCH] [LoongArch] Fix '-mno-lsx' option not disabling LASX feature (#143821) When '-march' with LASX feature and '-mno-lsx' options are used together, '-mno-lsx' fails to disable LASX, leaving 'HasFeatureLASX=true' and causing incorrect '__loongarch_sx/asx=1' macro definition. Fixes https://github.com/loongson-community/discussions/issues/95 (cherry picked from commit 2ecbfc0beb42abbbd2c3d28bfd576b38c44a5b46) --- clang/lib/Driver/ToolChains/Arch/LoongArch.cpp | 1 + clang/test/Preprocessor/init-loongarch.c | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/clang/lib/Driver/ToolChains/Arch/LoongArch.cpp b/clang/lib/Driver/ToolChains/Arch/LoongArch.cpp index 0575a1ebef3a6..1666253db54cb 100644 --- a/clang/lib/Driver/ToolChains/Arch/LoongArch.cpp +++ b/clang/lib/Driver/ToolChains/Arch/LoongArch.cpp @@ -253,6 +253,7 @@ void loongarch::getLoongArchTargetFeatures(const Driver &D, Features.push_back("+lsx"); } else /*-mno-lsx*/ { Features.push_back("-lsx"); + Features.push_back("-lasx"); } } diff --git a/clang/test/Preprocessor/init-loongarch.c b/clang/test/Preprocessor/init-loongarch.c index ac461b371162f..71a266b8a9157 100644 --- a/clang/test/Preprocessor/init-loongarch.c +++ b/clang/test/Preprocessor/init-loongarch.c @@ -946,6 +946,10 @@ // RUN: | FileCheck --match-full-lines --check-prefix=MNO-LSX %s // RUN: %clang --target=loongarch64 -mno-lasx -mno-lsx -x c -E -dM %s -o - \ // RUN: | FileCheck --match-full-lines --check-prefix=MNO-LSX %s +// RUN: %clang --target=loongarch64 -march=la464 -mno-lsx -x c -E -dM %s -o - \ +// RUN: | FileCheck --match-full-lines --check-prefix=MNO-LSX %s +// RUN: %clang --target=loongarch64 -mno-lsx -march=la464 -x c -E -dM %s -o - \ +// RUN: | FileCheck --match-full-lines --check-prefix=MNO-LSX %s // MNO-LSX-NOT: #define __loongarch_asx // MNO-LSX-NOT: #define __loongarch_simd_width // MNO-LSX-NOT: #define __loongarch_sx _______________________________________________ llvm-branch-commits mailing list llvm-branch-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-branch-commits
