[libc-commits] [clang] [libc] [libcxx] [clang][X86] Emit AVX level mismatch psABI warnings on function definitions (PR #199091)

[Aaron Ballman via libc-commits]

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@@ -0,0 +1,55 @@
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++17 -emit-llvm -disable-llvm-passes -verify=noavx,noavx512 -o - %s
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++17 -target-feature +avx -emit-llvm -disable-llvm-passes -verify=noavx512 -o - %s
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++17 -target-feature +avx512f -emit-llvm -disable-llvm-passes -verify=both -o - %s
+// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -std=c++17 -Wno-psabi -emit-llvm -disable-llvm-passes -verify=suppressed -o - %s
+// REQUIRES: x86-registered-target
+
+// both-no-diagnostics
+// suppressed-no-diagnostics
+
+typedef float v8f __attribute__((vector_size(32)));
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AaronBallman wrote:

Can we also have test coverage for a K&R C function without a prototype?

https://github.com/llvm/llvm-project/pull/199091