[clang] [NFC] Precommit test for issue #149512 (PR #153541)

[via cfe-commits]

https://github.com/Ami-zhang created https://github.com/llvm/llvm-project/pull/153541

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>From 106481dbfb72200f9091f8eee4f36bbefb9bdc37 Mon Sep 17 00:00:00 2001
From: Ami-zhang <zhanglimin at loongson.cn>
Date: Thu, 14 Aug 2025 11:08:26 +0800
Subject: [PATCH] [NFC] Precommit test for issue #149512

---
 clang/test/CodeGen/LoongArch/targetattr-lasx.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 clang/test/CodeGen/LoongArch/targetattr-lasx.c

diff --git a/clang/test/CodeGen/LoongArch/targetattr-lasx.c b/clang/test/CodeGen/LoongArch/targetattr-lasx.c
new file mode 100644
index 0000000000000..826180c73120f
--- /dev/null
+++ b/clang/test/CodeGen/LoongArch/targetattr-lasx.c
@@ -0,0 +1,16 @@
+// NOTE: Assertions have been autogenerated by utils/update_cc_test_checks.py UTC_ARGS: --check-globals all --version 5
+// RUN: %clang_cc1 -triple loongarch64 -target-feature -lsx -emit-llvm %s -o - | FileCheck %s
+
+__attribute__((target("lasx")))
+// CHECK-LABEL: define dso_local void @testlasx(
+// CHECK-SAME: ) #[[ATTR0:[0-9]+]] {
+// CHECK-NEXT:  [[ENTRY:.*:]]
+// CHECK-NEXT:    ret void
+//
+void testlasx() {}
+//.
+// CHECK: attributes #[[ATTR0]] = { noinline nounwind optnone "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-features"="+64bit,+lasx,-lsx" }
+//.
+// CHECK: [[META0:![0-9]+]] = !{i32 1, !"wchar_size", i32 4}
+// CHECK: [[META1:![0-9]+]] = !{!"{{.*}}clang version {{.*}}"}
+//.