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| author | Rafael Espindola <rafael.espindola@gmail.com> | 2012-05-21 14:22:37 +0000 |
|---|---|---|
| committer | Rafael Espindola <rafael.espindola@gmail.com> | 2012-05-21 14:22:37 +0000 |
| commit | 2de54fcf8511344d888f445bf159e5dee69cd6b9 (patch) | |
| tree | 54b390efbccefd172bd4c178f69dd843db7da289 | |
| parent | 11ed43dabf272fe80cc3820bb1a043ca7c1d53ac (diff) | |
Test and document a difference from gcc in the handling of visibility
attributes.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@157186 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | test/CodeGenCXX/visibility.cpp | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/CodeGenCXX/visibility.cpp b/test/CodeGenCXX/visibility.cpp index be8e199532..568a2859f8 100644 --- a/test/CodeGenCXX/visibility.cpp +++ b/test/CodeGenCXX/visibility.cpp @@ -66,6 +66,19 @@ namespace test40 { // CHECK-HIDDEN: _ZN6test403fooIiE3barE = weak_odr global } +namespace test41 { + // Unlike gcc we propagate the information that foo not only is hidden, but + // has been explicitly marked as so. This lets us produce a hidden undefined + // reference to bar. + struct __attribute__((visibility("hidden"))) foo {}; + extern foo bar; + foo *zed() { + return &bar; + } + // CHECK: @_ZN6test413barE = external hidden global + // CHECK-HIDDEN: @_ZN6test413barE = external hidden global +} + // CHECK: @_ZN5Test425VariableInHiddenNamespaceE = hidden global i32 10 // CHECK: @_ZN5Test71aE = hidden global // CHECK: @_ZN5Test71bE = global |