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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.
87 lines
1.4 KiB
C++
87 lines
1.4 KiB
C++
// RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-apple-darwin10 | FileCheck %s
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// PR5392
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namespace PR5392 {
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struct A
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{
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static int a;
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};
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A a1;
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void f()
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{
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// CHECK: store i32 10, i32* @_ZN6PR53921A1aE
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a1.a = 10;
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// CHECK: store i32 20, i32* @_ZN6PR53921A1aE
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A().a = 20;
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}
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}
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struct A {
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A();
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~A();
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enum E { Foo };
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};
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A *g();
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void f(A *a) {
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A::E e1 = a->Foo;
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// CHECK: call %struct.A* @_Z1gv()
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A::E e2 = g()->Foo;
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// CHECK: call void @_ZN1AC1Ev(
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// CHECK: call void @_ZN1AD1Ev(
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A::E e3 = A().Foo;
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}
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namespace test3 {
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struct A {
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static int foo();
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};
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int f() {
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return A().foo();
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}
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}
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namespace test4 {
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struct A {
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int x;
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};
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struct B {
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int x;
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void foo();
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};
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struct C : A, B {
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};
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extern C *c_ptr;
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// CHECK-LABEL: define{{.*}} i32 @_ZN5test44testEv()
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int test() {
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// CHECK: load {{.*}} @_ZN5test45c_ptrE
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: getelementptr
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: call void @_ZN5test41B3fooEv
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c_ptr->B::foo();
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// CHECK: load {{.*}} @_ZN5test45c_ptrE
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: getelementptr
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: getelementptr
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// CHECK-NEXT: store i32 5
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c_ptr->B::x = 5;
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// CHECK: load {{.*}} @_ZN5test45c_ptrE
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: getelementptr
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// CHECK-NEXT: bitcast
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// CHECK-NEXT: getelementptr
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// CHECK-NEXT: load i32, i32*
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return c_ptr->B::x;
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}
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}
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