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.
30 lines
570 B
C++
30 lines
570 B
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -o - %s | FileCheck %s
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struct Foo {
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Foo();
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Foo(const Foo&);
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};
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struct Bar {
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Bar();
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operator const Foo&() const;
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};
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void f(Foo);
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// CHECK-LABEL: define{{.*}} void @_Z1g3Foo(%struct.Foo* %foo)
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void g(Foo foo) {
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// CHECK: call void @_ZN3BarC1Ev
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// CHECK: @_ZNK3BarcvRK3FooEv
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// CHECK: call void @_Z1f3Foo
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f(Bar());
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// CHECK: call void @_ZN3FooC1Ev
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// CHECK: call void @_Z1f3Foo
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f(Foo());
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// CHECK: call void @_ZN3FooC1ERKS_
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// CHECK: call void @_Z1f3Foo
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f(foo);
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// CHECK: ret
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}
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