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llvm-project/clang/test/CodeGenCXX/virt-dtor-key.cpp

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Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// RUN: %clang_cc1 -triple i386-linux -emit-llvm %s -o - | FileCheck %s
Reland r312224 - [ItaniumCXXABI] Always use linkonce_odr linkage for RTTI data on MinGW This fixes cases where dynamic classes produced RTTI data with external linkage, producing linker errors about duplicate symbols. This touches code close to what was changed in SVN r244266, but this change doesn't break the tests added in that revision. The previous version had missed to update CodeGenCXX/virt-dtor-key.cpp, which had a behaviour change only when running the testsuite on windows. Differential revision: https://reviews.llvm.org/D37327 llvm-svn: 312306
2017-09-01 14:41:55 +08:00
// RUN: %clang_cc1 -triple i386-windows-gnu -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-MINGW
[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences For a default visibility external linkage definition, dso_local is set for ELF -fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences. To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition, which sets dso_local for default visibility external linkage definitions. To make this flip smooth and enable future (dso_local as definition default), this patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
2020-12-31 16:27:11 +08:00
// CHECK: @_ZTI3foo ={{.*}} constant
Reland r312224 - [ItaniumCXXABI] Always use linkonce_odr linkage for RTTI data on MinGW This fixes cases where dynamic classes produced RTTI data with external linkage, producing linker errors about duplicate symbols. This touches code close to what was changed in SVN r244266, but this change doesn't break the tests added in that revision. The previous version had missed to update CodeGenCXX/virt-dtor-key.cpp, which had a behaviour change only when running the testsuite on windows. Differential revision: https://reviews.llvm.org/D37327 llvm-svn: 312306
2017-09-01 14:41:55 +08:00
// CHECK-MINGW: @_ZTI3foo = linkonce_odr
Fix for PR5594: use EmitGlobalDefinition instead of EmitCXXDestructor so that we check whether the vtable needs to be generated. llvm-svn: 89984
2009-11-27 09:42:12 +08:00
class foo {
foo();
virtual ~foo();
};
foo::~foo() {
}