diff options
| author | Reid Kleckner <rnk@google.com> | 2018-08-17 20:59:27 +0000 |
|---|---|---|
| committer | Reid Kleckner <rnk@google.com> | 2018-08-17 20:59:27 +0000 |
| commit | c19390aed5803d8384d7a2455af84353f0788954 (patch) | |
| tree | 6d855b7f020757e420ffb80393371efffb21ee97 /test/CodeGenCXX/microsoft-abi-throw.cpp | |
| parent | 75af897e99f6b35cf4c97a7388f6387d738e9d5a (diff) | |
[MS] Mangle a hash of the main file path into anonymous namespaces
Summary:
This is needed to avoid conflicts in mangled names for codeview types in
anonymous namespaces. In CodeView, types refer to each other typically
through forward declarations, which contain mangled names. These names
have to be unique, otherwise the debugger will look up the mangled name
and find the wrong definition.
Furthermore, ThinLTO will deduplicate the types, and debug info
verification can fail when the types have the wrong sizes. This is
PR38608.
Fixes PR38609.
Reviewers: majnemer, inglorion, hans
Subscribers: mehdi_amini, aprantl, JDevlieghere, dexonsmith, cfe-commits
Differential Revision: https://reviews.llvm.org/D50877
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@340079 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGenCXX/microsoft-abi-throw.cpp')
| -rw-r--r-- | test/CodeGenCXX/microsoft-abi-throw.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/test/CodeGenCXX/microsoft-abi-throw.cpp b/test/CodeGenCXX/microsoft-abi-throw.cpp index cbbce2daaa..f55b94acf1 100644 --- a/test/CodeGenCXX/microsoft-abi-throw.cpp +++ b/test/CodeGenCXX/microsoft-abi-throw.cpp @@ -22,7 +22,7 @@ // CHECK-DAG: @_TI1P6AXXZ = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 0, i8* null, i8* null, i8* bitcast (%eh.CatchableTypeArray.1* @_CTA1P6AXXZ to i8*) }, section ".xdata", comdat // CHECK-DAG: @_TIU2PAPFAH = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 4, i8* null, i8* null, i8* bitcast (%eh.CatchableTypeArray.2* @_CTA2PAPFAH to i8*) }, section ".xdata", comdat // CHECK-DAG: @_CTA2PAPFAH = linkonce_odr unnamed_addr constant %eh.CatchableTypeArray.2 { i32 2, [2 x %eh.CatchableType*] [%eh.CatchableType* @"_CT??_R0PAPFAH@84", %eh.CatchableType* @"_CT??_R0PAX@84"] }, section ".xdata", comdat -// CHECK-DAG: @"_TI1?AUFoo@?A@@" = internal unnamed_addr constant %eh.ThrowInfo { i32 0, i8* null, i8* null, i8* bitcast (%eh.CatchableTypeArray.1* @"_CTA1?AUFoo@?A@@" to i8*) }, section ".xdata" +// CHECK-DAG: @"_TI1?AUFoo@?A0x{{[^@]*}}@@" = internal unnamed_addr constant %eh.ThrowInfo { i32 0, i8* null, i8* null, i8* bitcast (%eh.CatchableTypeArray.1* @"_CTA1?AUFoo@?A0x{{[^@]*}}@@" to i8*) }, section ".xdata" struct N { ~N(); }; @@ -135,6 +135,6 @@ namespace { struct Foo { } foo_exc; } void *GetExceptionInfo_test2() { // CHECK-LABEL: @"?GetExceptionInfo_test2@@YAPAXXZ" -// CHECK: ret i8* bitcast (%eh.ThrowInfo* @"_TI1?AUFoo@?A@@" to i8*) +// CHECK: ret i8* bitcast (%eh.ThrowInfo* @"_TI1?AUFoo@?A0x{{[^@]*}}@@" to i8*) return __GetExceptionInfo(foo_exc); } |