Ensure Target Features always_inline error happens in C++ cases.

A handful of C++ cases as reported in PR42352 didn't actually give an
error when always_inlining with a different target feature list. This
resulted in broken IR.

llvm-svn: 364109

1 files changed, 17 insertions, 0 deletions

diff --git a/clang/test/CodeGenCXX/target-features-error.cpp b/clang/test/CodeGenCXX/target-features-error.cpp
new file mode 100644
index 00000000000..44179deaf35
--- /dev/null
+++ b/clang/test/CodeGenCXX/target-features-error.cpp
@@ -0,0 +1,17 @@
+// RUN: %clang_cc1 %s -triple=x86_64-linux-gnu -S -verify -o -
+
+struct S {
+  __attribute__((always_inline, target("avx512f")))
+  void foo(){}
+  __attribute__((always_inline, target("avx512f")))
+  operator int(){ return 0; }
+  __attribute__((always_inline, target("avx512f")))
+  void operator()(){ }
+
+};
+
+void usage(S & s) {
+  s.foo(); // expected-error {{'foo' requires target feature 'avx512f'}}
+  (void)(int)s; // expected-error {{'operator int' requires target feature 'avx512f'}}
+  s(); // expected-error {{'operator()' requires target feature 'avx512f'}}
+}