6b3351792c
For a definition (of most linkage types), dso_local is set for ELF -fno-pic/-fpie
and COFF, but not for Mach-O. This nuance causes unneeded binary format differences.
This patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `
if there is an explicit linkage.
* Clang will set dso_local for Mach-O, which is currently implied by TargetMachine.cpp. This will make COFF/Mach-O and executable ELF similar.
* Eventually I hope we can make dso_local the textual LLVM IR default (write explicit "dso_preemptable" when applicable) and -fpic ELF will be similar to everything else. This patch helps move toward that goal.
24 lines
825 B
C++
24 lines
825 B
C++
// RUN: %clang_cc1 -triple x86_64-apple-macosx -std=c++11 -fvisibility hidden -emit-llvm -o - %s -O2 -disable-llvm-passes | FileCheck %s
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// RUN: %clang_cc1 -triple x86_64-apple-macosx -DUNDEF_G -std=c++11 -fvisibility hidden -emit-llvm -o - %s -O2 -disable-llvm-passes | FileCheck %s
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namespace std {
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template <class>
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class __attribute__((__type_visibility__("default"))) shared_ptr {
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template <class> friend class shared_ptr;
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};
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}
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struct dict;
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#ifndef UNDEF_G
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std::shared_ptr<dict> g;
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#endif
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class __attribute__((visibility("default"))) Bar;
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template <class = std::shared_ptr<Bar>>
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class __attribute__((visibility("default"))) i {
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std::shared_ptr<int> foo() const;
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};
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// CHECK: define{{.*}} void @_ZNK1iISt10shared_ptrI3BarEE3fooEv
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template <> std::shared_ptr<int> i<>::foo() const {
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return std::shared_ptr<int>();
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}
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