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fac5243493
Out-of-line definitions of static data members which have an inline initializer must get GVA_DiscardableODR linkage instead of GVA_StrongExternal linkage. MSVC 2013's behavior is different with respect to this and would cause link errors if one TU provided a definition while another did not. MSVC 2015 fixed this bug, making this OK. Note that the 2015 behavior is always compatible with 2013: it never produces a strong definition. This essentially reverts r237787. llvm-svn: 250757
53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
// RUN: %clang_cc1 -emit-llvm -triple=i386-pc-win32 -fms-compatibility %s -o - | FileCheck %s
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struct S {
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static const int NoInit_Ref;
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static const int Inline_NotDef_NotRef = 5;
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static const int Inline_NotDef_Ref = 5;
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static const int Inline_Def_NotRef = 5;
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static const int Inline_Def_Ref = 5;
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static const int OutOfLine_Def_NotRef;
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static const int OutOfLine_Def_Ref;
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};
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const int *foo1() {
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return &S::NoInit_Ref;
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};
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const int *foo2() {
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return &S::Inline_NotDef_Ref;
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};
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const int *foo3() {
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return &S::Inline_Def_Ref;
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};
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const int *foo4() {
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return &S::OutOfLine_Def_Ref;
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};
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const int S::Inline_Def_NotRef;
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const int S::Inline_Def_Ref;
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const int S::OutOfLine_Def_NotRef = 5;
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const int S::OutOfLine_Def_Ref = 5;
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// No initialization.
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// CHECK-DAG: @"\01?NoInit_Ref@S@@2HB" = external constant i32
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// Inline initialization, no real definiton, not referenced.
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// CHECK-NOT: @"\01?Inline_NotDef_NotRef@S@@2HB" = {{.*}} constant i32 5
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// Inline initialization, no real definiton, referenced.
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// CHECK-DAG: @"\01?Inline_NotDef_Ref@S@@2HB" = linkonce_odr constant i32 5, comdat, align 4
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// Inline initialization, real definiton, not referenced.
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// CHECK-NOT: @"\01?Inline_Def_NotRef@S@@2HB" = constant i32 5, align 4
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// Inline initialization, real definiton, referenced.
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// CHECK-DAG: @"\01?Inline_Def_Ref@S@@2HB" = linkonce_odr constant i32 5, comdat, align 4
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// Out-of-line initialization.
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// CHECK-DAG: @"\01?OutOfLine_Def_NotRef@S@@2HB" = constant i32 5, align 4
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// CHECK-DAG: @"\01?OutOfLine_Def_Ref@S@@2HB" = constant i32 5, align 4
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