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.
44 lines
1.6 KiB
Plaintext
44 lines
1.6 KiB
Plaintext
// RUN: %clang_cc1 -triple x86_64-darwin -std=c++11 -fobjc-arc -emit-llvm -o - %s | FileCheck %s --implicit-check-not "call\ "
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// rdar://problem/45805151
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struct Strong {
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__strong id x;
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};
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struct Base {
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// Use variadic args to cause inlining the inherited constructor.
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Base(Strong s, ...) {}
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};
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struct NonTrivialDtor {
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~NonTrivialDtor() {}
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};
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struct Inheritor : public NonTrivialDtor, public Base {
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using Base::Base;
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};
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id g(void);
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void f() {
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Inheritor({g()});
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}
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// CHECK-LABEL: define{{.*}} void @_Z1fv
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// CHECK: %[[TMP:.*]] = call i8* @_Z1gv()
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// CHECK: {{.*}} = notail call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* %[[TMP]])
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// CHECK: call void (%struct.Base*, i8*, ...) @_ZN4BaseC2E6Strongz(%struct.Base* {{.*}}, i8* {{.*}})
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// CHECK-NEXT: call void @_ZN9InheritorD1Ev(%struct.Inheritor* {{.*}})
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// CHECK-LABEL: define linkonce_odr void @_ZN4BaseC2E6Strongz(%struct.Base* {{.*}}, i8* {{.*}}, ...)
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// CHECK: call void @_ZN6StrongD1Ev(%struct.Strong* {{.*}})
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// CHECK-LABEL: define linkonce_odr void @_ZN9InheritorD1Ev(%struct.Inheritor* {{.*}})
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// CHECK: call void @_ZN9InheritorD2Ev(%struct.Inheritor* {{.*}})
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// CHECK-LABEL: define linkonce_odr void @_ZN6StrongD1Ev(%struct.Strong* {{.*}})
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// CHECK: call void @_ZN6StrongD2Ev(%struct.Strong* {{.*}})
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// CHECK-LABEL: define linkonce_odr void @_ZN6StrongD2Ev(%struct.Strong* {{.*}})
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// CHECK: call void @llvm.objc.storeStrong(i8** {{.*}}, i8* null)
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// CHECK-LABEL: define linkonce_odr void @_ZN9InheritorD2Ev(%struct.Inheritor* {{.*}})
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// CHECK: call void @_ZN14NonTrivialDtorD2Ev(%struct.NonTrivialDtor* {{.*}})
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