dnrops
/
clang
mirror of https://github.com/microsoft/clang.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[MS ABI] Mangle unnamed empty enums (PR37723) 

Differential Revision: https://reviews.llvm.org/D47875

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@334388 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Hans Wennborg 2018-06-11 06:54:23 +00:00
parent adc6bb61d2
commit 31ffb93ee6
2 changed files with 14 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
lib/AST/MicrosoftMangle.cpp
View File

@ -884,11 +884,13 @@ void MicrosoftCXXNameMangler::mangleUnqualifiedName(const NamedDecl *ND,
// associate typedef mangled in if they have one.
Name += "<unnamed-type-";
Name += TND->getName();
} else if (auto *ED = dyn_cast<EnumDecl>(TD)) {
auto EnumeratorI = ED->enumerator_begin();
assert(EnumeratorI != ED->enumerator_end());
} else if (isa<EnumDecl>(TD) &&
cast<EnumDecl>(TD)->enumerator_begin() !=
cast<EnumDecl>(TD)->enumerator_end()) {
// Anonymous non-empty enums mangle in the first enumerator.
auto *ED = cast<EnumDecl>(TD);
Name += "<unnamed-enum-";
Name += EnumeratorI->getName();
Name += ED->enumerator_begin()->getName();
} else {
// Otherwise, number the types using a $S prefix.
Name += "<unnamed-type-$S";

8
test/CodeGenCXX/mangle-ms-cxx11.cpp
View File

@ -1,5 +1,6 @@
// RUN: %clang_cc1 -std=c++11 -fms-extensions -emit-llvm %s -o - -triple=i386-pc-win32 -fms-compatibility-version=19.00 | FileCheck %s --check-prefix=CHECK --check-prefix=MSVC2015
// RUN: %clang_cc1 -std=c++11 -fms-extensions -emit-llvm %s -o - -triple=i386-pc-win32 -fms-compatibility-version=18.00 | FileCheck %s --check-prefix=CHECK --check-prefix=MSVC2013
// RUN: %clang_cc1 -std=c++11 -fms-extensions -emit-llvm %s -o - -triple=i386-pc-win32 -gcodeview -debug-info-kind=limited | FileCheck %s --check-prefix=DBG
namespace FTypeWithQuals {
template <typename T>
@ -350,3 +351,10 @@ enum { enumerator };
void f(decltype(enumerator)) {}
// CHECK-DAG: define internal void @"?f@@YAXW4<unnamed-enum-enumerator>@@@Z"(
void use_f() { f(enumerator); }
namespace pr37723 {
struct s { enum {}; enum {}; };
// DBG-DAG: DW_TAG_enumeration_type{{.*}}identifier: ".?AW4<unnamed-type-$S2>@s@pr37723@@"
// DBG-DAG: DW_TAG_enumeration_type{{.*}}identifier: ".?AW4<unnamed-type-$S3>@s@pr37723@@"
s x;
}