[Sema] Fix a crash on invalid features in multiversioning

We were trying to emit a diag::err_bad_multiversion_option diagnostic,
which expects an int as its first argument, with a string argument. As
it happens, the string `Feature` that was causing this was shadowing an
int `Feature` from the surrounding scope. :)

llvm-svn: 322530

1 files changed, 7 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/attr-target-mv.cpp b/clang/test/SemaCXX/attr-target-mv.cpp
index 18ec1bf7ca5..cc2d4f16c3f 100644
--- a/clang/test/SemaCXX/attr-target-mv.cpp
+++ b/clang/test/SemaCXX/attr-target-mv.cpp
@@ -1,4 +1,11 @@
 // RUN: %clang_cc1 -triple x86_64-linux-gnu  -fsyntax-only -verify -fexceptions -fcxx-exceptions %s -std=c++14
+void __attribute__((target("default"))) invalid_features(void);
+//expected-error@+2 {{function multiversioning doesn't support feature 'hello_world'}}
+//expected-warning@+1 {{ignoring unsupported 'hello_world' in the target attribute string}}
+void __attribute__((target("hello_world"))) invalid_features(void);
+//expected-error@+1 {{function multiversioning doesn't support feature 'no-sse4.2'}}
+void __attribute__((target("no-sse4.2"))) invalid_features(void);
+
 void __attribute__((target("sse4.2"))) no_default(void);
 void __attribute__((target("arch=sandybridge")))  no_default(void);