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.
28 lines
1.0 KiB
Objective-C
28 lines
1.0 KiB
Objective-C
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fexceptions -fobjc-exceptions -o - %s | FileCheck %s
|
|
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -emit-llvm -fexceptions -fobjc-exceptions -fvisibility hidden -o - %s | FileCheck -check-prefix=CHECK-HIDDEN %s
|
|
|
|
__attribute__((objc_root_class))
|
|
@interface Root {
|
|
Class isa;
|
|
}
|
|
@end
|
|
|
|
__attribute__((objc_exception))
|
|
@interface A : Root
|
|
@end
|
|
|
|
@implementation A
|
|
@end
|
|
// CHECK: @"OBJC_EHTYPE_$_A" ={{.*}} global {{%.*}} { i8** getelementptr inbounds (i8*, i8** @objc_ehtype_vtable, i32 2)
|
|
// CHECK-HIDDEN: @"OBJC_EHTYPE_$_A" = hidden global {{%.*}} { i8** getelementptr inbounds (i8*, i8** @objc_ehtype_vtable, i32 2)
|
|
|
|
__attribute__((objc_exception))
|
|
__attribute__((visibility("default")))
|
|
@interface B : Root
|
|
@end
|
|
|
|
@implementation B
|
|
@end
|
|
// CHECK: @"OBJC_EHTYPE_$_B" ={{.*}} global {{%.*}} { i8** getelementptr inbounds (i8*, i8** @objc_ehtype_vtable, i32 2)
|
|
// CHECK-HIDDEN: @"OBJC_EHTYPE_$_B" ={{.*}} global {{%.*}} { i8** getelementptr inbounds (i8*, i8** @objc_ehtype_vtable, i32 2)
|