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.
69 lines
1.3 KiB
Objective-C
69 lines
1.3 KiB
Objective-C
// RUN: %clang_cc1 -triple x86_64-apple-darwin -fblocks -emit-llvm -o - %s | FileCheck %s
|
|
|
|
@interface NSObject
|
|
+ (id) new;
|
|
- (id) init;
|
|
@end
|
|
|
|
@interface Base : NSObject @end
|
|
|
|
// @implementation Base
|
|
// {
|
|
// int dummy;
|
|
// }
|
|
// @end
|
|
|
|
@interface Derived : Base
|
|
{
|
|
@public int member;
|
|
}
|
|
@end
|
|
|
|
@implementation Derived
|
|
- (id) init
|
|
{
|
|
self = [super init];
|
|
member = 42;
|
|
return self;
|
|
}
|
|
@end
|
|
|
|
// CHECK: define internal i8* @"\01-[Derived init]"
|
|
// CHECK: [[IVAR:%.*]] = load i64, i64* @"OBJC_IVAR_$_Derived.member", align 8, !invariant.load
|
|
|
|
void * variant_load_1(int i) {
|
|
void *ptr;
|
|
while (i--) {
|
|
Derived *d = [Derived new];
|
|
ptr = &d->member;
|
|
}
|
|
return ptr;
|
|
}
|
|
|
|
// CHECK-LABEL: define{{.*}} i8* @variant_load_1(i32 %i)
|
|
// CHECK: [[IVAR:%.*]] = load i64, i64* @"OBJC_IVAR_$_Derived.member", align 8{{$}}
|
|
|
|
@interface Container : Derived @end
|
|
@implementation Container
|
|
- (void *) invariant_load_1
|
|
{
|
|
return &self->member;
|
|
}
|
|
@end
|
|
|
|
// CHECK-LABEL: define internal i8* @"\01-[Container invariant_load_1]"
|
|
// CHECK: [[IVAR:%.*]] = load i64, i64* @"OBJC_IVAR_$_Derived.member", align 8, !invariant.load
|
|
|
|
@interface ForBlock
|
|
{
|
|
@public
|
|
id foo;
|
|
}
|
|
@end
|
|
|
|
// CHECK-LABEL: define internal i8* @block_block_invoke
|
|
// CHECK: load i64, i64* @"OBJC_IVAR_$_ForBlock.foo"
|
|
id (^block)(ForBlock*) = ^(ForBlock* a) {
|
|
return a->foo;
|
|
};
|