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| author | Piotr Padlewski <prazek@google.com> | 2015-10-02 22:12:40 +0000 |
|---|---|---|
| committer | Piotr Padlewski <prazek@google.com> | 2015-10-02 22:12:40 +0000 |
| commit | 276a78d860cbe376202d3251a1f490b0da7f2f7e (patch) | |
| tree | ef6ac2f6a4e0b0b69d1d75731586decdb58f5fc4 /clang/test/CodeGenCXX/invariant.group-for-vptrs.cpp | |
| parent | dc9b2cfc5013684456ec7d632eaa2edf7c030f2b (diff) | |
| download | bcm5719-llvm-276a78d860cbe376202d3251a1f490b0da7f2f7e.tar.gz bcm5719-llvm-276a78d860cbe376202d3251a1f490b0da7f2f7e.zip | |
Emiting invariant.group.barrier for ctors bugfix
Ensure that the vptr store in the most-derived constructor is not behind
an invariant group barrier. Previously, the base-most vptr store would
be the one behind no barrier, and that could result in the creator of
the object thinking it had the base-most vtable.
This bug caused clang call pure virtual functions when called from
constructor body.
http://reviews.llvm.org/D13373
llvm-svn: 249197
Diffstat (limited to 'clang/test/CodeGenCXX/invariant.group-for-vptrs.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/invariant.group-for-vptrs.cpp | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/clang/test/CodeGenCXX/invariant.group-for-vptrs.cpp b/clang/test/CodeGenCXX/invariant.group-for-vptrs.cpp index 7e85fa20d5d..ca737ee23fb 100644 --- a/clang/test/CodeGenCXX/invariant.group-for-vptrs.cpp +++ b/clang/test/CodeGenCXX/invariant.group-for-vptrs.cpp @@ -56,9 +56,8 @@ void testInternallyVisible(bool p) { // Checking D::D() // CHECK-LABEL: define linkonce_odr void @_ZN1DC2Ev( - -// CHECK: call void @_ZN1AC2Ev(%struct.A* // CHECK: = call i8* @llvm.invariant.group.barrier(i8* +// CHECK: call void @_ZN1AC2Ev(%struct.A* // CHECK: store {{.*}} !invariant.group ![[D_MD]] // Checking B::B() |
