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.
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
// RUN: %clang_cc1 %s -triple=x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
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struct Field {
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Field();
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~Field();
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};
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struct Base {
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Base();
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~Base();
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};
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struct A : Base {
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A();
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~A();
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virtual void f();
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Field field;
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};
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// CHECK-LABEL: define{{.*}} void @_ZN1AC2Ev(%struct.A* {{[^,]*}} %this) unnamed_addr
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// CHECK: call void @_ZN4BaseC2Ev(
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// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTV1A, i32 0, inrange i32 0, i32 2) to i32 (...)**)
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// CHECK: call void @_ZN5FieldC1Ev(
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// CHECK: ret void
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A::A() { }
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// CHECK-LABEL: define{{.*}} void @_ZN1AD2Ev(%struct.A* {{[^,]*}} %this) unnamed_addr
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// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTV1A, i32 0, inrange i32 0, i32 2) to i32 (...)**)
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// CHECK: call void @_ZN5FieldD1Ev(
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// CHECK: call void @_ZN4BaseD2Ev(
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// CHECK: ret void
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A::~A() { }
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struct B : Base {
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virtual void f();
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Field field;
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};
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void f() { B b; }
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// CHECK-LABEL: define linkonce_odr void @_ZN1BC1Ev(%struct.B* {{[^,]*}} %this) unnamed_addr
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// CHECK: call void @_ZN1BC2Ev(
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// CHECK-LABEL: define linkonce_odr void @_ZN1BD1Ev(%struct.B* {{[^,]*}} %this) unnamed_addr
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// CHECK: call void @_ZN1BD2Ev(
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// CHECK-LABEL: define linkonce_odr void @_ZN1BC2Ev(%struct.B* {{[^,]*}} %this) unnamed_addr
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// CHECK: call void @_ZN4BaseC2Ev(
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// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTV1B, i32 0, inrange i32 0, i32 2) to i32 (...)**)
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// CHECK: call void @_ZN5FieldC1Ev
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// CHECK: ret void
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// CHECK-LABEL: define linkonce_odr void @_ZN1BD2Ev(%struct.B* {{[^,]*}} %this) unnamed_addr
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// CHECK: store i32 (...)** bitcast (i8** getelementptr inbounds ({ [3 x i8*] }, { [3 x i8*] }* @_ZTV1B, i32 0, inrange i32 0, i32 2) to i32 (...)**)
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// CHECK: call void @_ZN5FieldD1Ev(
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// CHECK: call void @_ZN4BaseD2Ev(
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// CHECK: ret void
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