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| author | Hans Wennborg <hans@hanshq.net> | 2014-09-10 19:28:48 +0000 |
|---|---|---|
| committer | Hans Wennborg <hans@hanshq.net> | 2014-09-10 19:28:48 +0000 |
| commit | 7b556ead93561522b88d926230db1bba26a9f62e (patch) | |
| tree | 7e4c50671f36fd4b6637e481f789791a7b350d43 /clang/test/CodeGenCXX/microsoft-abi-static-initializers.cpp | |
| parent | 1383d6f80848d0c5ce3139ba0a95b6807f10bd0f (diff) | |
| download | bcm5719-llvm-7b556ead93561522b88d926230db1bba26a9f62e.tar.gz bcm5719-llvm-7b556ead93561522b88d926230db1bba26a9f62e.zip | |
MS ABI: Emit dynamic initializers for selectany globals in comdat-associative sections (PR20889)
This prevents initializers for comdat-folded globals from running multiple times.
Differential Revision: http://reviews.llvm.org/D5281
llvm-svn: 217534
Diffstat (limited to 'clang/test/CodeGenCXX/microsoft-abi-static-initializers.cpp')
| -rw-r--r-- | clang/test/CodeGenCXX/microsoft-abi-static-initializers.cpp | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/clang/test/CodeGenCXX/microsoft-abi-static-initializers.cpp b/clang/test/CodeGenCXX/microsoft-abi-static-initializers.cpp index 5f74c54c1c4..f255ef02a12 100644 --- a/clang/test/CodeGenCXX/microsoft-abi-static-initializers.cpp +++ b/clang/test/CodeGenCXX/microsoft-abi-static-initializers.cpp @@ -1,9 +1,12 @@ // RUN: %clang_cc1 -fms-extensions -emit-llvm %s -o - -mconstructor-aliases -triple=i386-pc-win32 | FileCheck %s -// CHECK: @llvm.global_ctors = appending global [2 x { i32, void ()*, i8* }] -// CHECK: [{ i32, void ()*, i8* } { i32 65535, void ()* @"\01??__Efoo@?$B@H@@2VA@@A@YAXXZ", -// CHECK: i8* bitcast (%class.A* @"\01?foo@?$B@H@@2VA@@A" to i8*) }, -// CHECK: { i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_microsoft_abi_static_initializers.cpp, i8* null }] +// CHECK: @llvm.global_ctors = appending global [5 x { i32, void ()*, i8* }] [ +// CHECK: { i32, void ()*, i8* } { i32 65535, void ()* @"\01??__Eselectany1@@YAXXZ", i8* getelementptr inbounds (%struct.S* @"\01?selectany1@@3US@@A", i32 0, i32 0) }, +// CHECK: { i32, void ()*, i8* } { i32 65535, void ()* @"\01??__Eselectany2@@YAXXZ", i8* getelementptr inbounds (%struct.S* @"\01?selectany2@@3US@@A", i32 0, i32 0) }, +// CHECK: { i32, void ()*, i8* } { i32 65535, void ()* @"\01??__Es@?$ExportedTemplate@H@@2US@@A@YAXXZ", i8* getelementptr inbounds (%struct.S* @"\01?s@?$ExportedTemplate@H@@2US@@A", i32 0, i32 0) }, +// CHECK: { i32, void ()*, i8* } { i32 65535, void ()* @"\01??__Efoo@?$B@H@@2VA@@A@YAXXZ", i8* bitcast (%class.A* @"\01?foo@?$B@H@@2VA@@A" to i8*) }, +// CHECK: { i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_microsoft_abi_static_initializers.cpp, i8* null } +// CHECK: ] struct S { S(); @@ -21,8 +24,8 @@ S s; // CHECK: call x86_thiscallcc void @"\01??1S@@QAE@XZ" // CHECK: ret void -// These globals should use distinct guard variables, and not different bits of -// the same global. +// These globals should have initializers comdat associative with the global. +// See @llvm.global_ctors above. __declspec(selectany) S selectany1; __declspec(selectany) S selectany2; // CHECK: define linkonce_odr void @"\01??__Eselectany1@@YAXXZ"() @@ -34,9 +37,20 @@ __declspec(selectany) S selectany2; // CHECK: call x86_thiscallcc %struct.S* @"\01??0S@@QAE@XZ" // CHECK: ret void +// The implicitly instantiated static data member should have initializer +// comdat associative with the global. +template <typename T> struct __declspec(dllexport) ExportedTemplate { + static S s; +}; +template <typename T> S ExportedTemplate<T>::s; +void useExportedTemplate(ExportedTemplate<int> x) { + (void)x.s; +} + void StaticLocal() { static S TheS; } + // CHECK-LABEL: define void @"\01?StaticLocal@@YAXXZ"() // CHECK: load i32* @"\01?$S1@?0??StaticLocal@@YAXXZ@4IA" // CHECK: store i32 {{.*}}, i32* @"\01?$S1@?0??StaticLocal@@YAXXZ@4IA" |
