[WebAssembly] Add a test to ensure that -fvisibility=default works.

It should override the default of -fvisibility=hidden.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@257007 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Driver/wasm-toolchain.c b/test/Driver/wasm-toolchain.c
index 06c324a4d97481db91fc1f70bfa932241a3bb2c0..c188ee3b02158b7d7c63fe1acf5ab1dc5edd499c 100644 (file)
--- a/test/Driver/wasm-toolchain.c
+++ b/test/Driver/wasm-toolchain.c
@@ -17,6 +17,12 @@
 // RUN: %clang %s -### -target wasm32-unknown-unknown -fno-data-sections 2>&1 | FileCheck -check-prefix=NO_DATA_SECTIONS %s
 // NO_DATA_SECTIONS-NOT: data-sections
 
+// Ditto, but ensure that a user -fvisibility=default disables the default
+// -fvisibilt=hidden.
+
+// RUN: %clang %s -### -target wasm32-unknown-unknown -fvisibility=default 2>&1 | FileCheck -check-prefix=FVISIBILITY_DEFAULT %s
+// FVISIBILITY_DEFAULT-NOT: hidden
+
 // A basic C link command-line.
 
 // RUN: %clang -### -no-canonical-prefixes -target wasm32-unknown-unknown %s 2>&1 | FileCheck -check-prefix=LINK %s