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.
53 lines
1.6 KiB
Objective-C
53 lines
1.6 KiB
Objective-C
// RUN: %clang_cc1 %s -emit-llvm -o - -fobjc-gc -fblocks -triple i386-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 | FileCheck %s --check-prefix=CHECK --check-prefix=OBJC
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// RUN: %clang_cc1 -x objective-c++ %s -emit-llvm -o - -fobjc-gc -fblocks -triple i386-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 | FileCheck %s --check-prefix=CHECK --check-prefix=OBJCXX
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// OBJC-LABEL: define{{.*}} void @test1(
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// OBJCXX-LABEL: define{{.*}} void @_Z5test1P12NSDictionary(
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// CHECK-LABEL: define linkonce_odr hidden void @__copy_helper_block_
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// CHECK: call void @_Block_object_assign(
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// CHECK-LABEL: define linkonce_odr hidden void @__destroy_helper_block_
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// CHECK: call void @_Block_object_dispose(
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// OBJC-LABEL: define{{.*}} void @foo(
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// OBJCXX-LABEL: define{{.*}} void @_Z3foov(
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// CHECK: call i8* @objc_read_weak(
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// CHECK: call i8* @objc_assign_weak(
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// CHECK: call void @_Block_object_dispose(
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// OBJC-LABEL: define{{.*}} void @test2(
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// OBJCXX-LABEL: define{{.*}} void @_Z5test2v(
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// CHECK: call i8* @objc_assign_weak(
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// CHECK: call void @_Block_object_dispose(
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// CHECK-LABEL: define linkonce_odr hidden void @__copy_helper_block_
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// CHECK: call void @_Block_object_assign(
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// CHECK-LABEL: define linkonce_odr hidden void @__destroy_helper_block_
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// CHECK: call void @_Block_object_dispose(
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@interface NSDictionary @end
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void test1(NSDictionary * dict) {
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^{ (void)dict; }();
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}
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@interface D
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@end
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void foo() {
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__block __weak D *weakSelf;
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^{ (void)weakSelf; };
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D *l;
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l = weakSelf;
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weakSelf = l;
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}
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void (^__weak b)(void);
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void test2() {
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__block int i = 0;
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b = ^ { ++i; };
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}
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