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.
45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fno-use-cxa-atexit -fapple-kext -emit-llvm -o - %s | FileCheck %s
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// CHECK: @_ZN5test01aE ={{.*}} global [[A:%.*]] zeroinitializer
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// CHECK: @llvm.global_ctors = appending global {{.*}} { i32 65535, void ()* [[CTOR0:@.*]], i8* null }
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// CHECK: @llvm.global_dtors = appending global {{.*}} { i32 65535, void ()* [[DTOR0:@.*]], i8* null }
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// Check that the base destructor is marked as always_inline when generating
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// code for kext.
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namespace testBaseDestructor {
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#pragma clang optimize off
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struct D {
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virtual ~D();
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};
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D::~D() {}
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#pragma clang optimize on
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}
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// CHECK: define{{.*}} void @_ZN18testBaseDestructor1DD2Ev({{.*}}) unnamed_addr #[[ATTR0:.*]] align 2 {
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// CHECK: define{{.*}} void @_ZN18testBaseDestructor1DD1Ev({{.*}}) unnamed_addr #[[ATTR1:.*]] align 2 {
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// CHECK: define{{.*}} void @_ZN18testBaseDestructor1DD0Ev({{.*}}) unnamed_addr #[[ATTR1]] align 2 {
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// rdar://11241230
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namespace test0 {
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struct A { A(); ~A(); };
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A a;
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}
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// CHECK: define internal void [[CTOR0_:@.*]]()
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// CHECK: call void @_ZN5test01AC1Ev([[A]]* {{[^,]*}} @_ZN5test01aE)
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// CHECK-NEXT: ret void
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// CHECK: define internal void [[CTOR0]]()
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// CHECK: call void [[CTOR0_]]()
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// CHECK-NEXT: ret void
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// CHECK: define internal void [[DTOR0]]()
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// CHECK: call void @_ZN5test01AD1Ev([[A]]* @_ZN5test01aE)
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// CHECK-NEXT: ret void
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// CHECK: attributes #[[ATTR0]] = { alwaysinline nounwind {{.*}} }
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// CHECK: attributes #[[ATTR1]] = { noinline nounwind {{.*}} }
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