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.
36 lines
874 B
Objective-C
36 lines
874 B
Objective-C
// RUN: %clang_cc1 -triple i386-apple-darwin9 -fobjc-runtime=macosx-fragile-10.5 -fno-constant-cfstrings -fconstant-string-class Foo -emit-llvm -o %t %s
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// RUN: FileCheck --check-prefix CHECK-FRAGILE < %t %s
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// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fno-constant-cfstrings -fconstant-string-class Foo -emit-llvm -o %t %s
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// RUN: FileCheck --check-prefix CHECK-NONFRAGILE < %t %s
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// rdar: // 8564463
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// PR6056
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@interface Object {
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id isa;
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}
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@end
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@interface Foo : Object{
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char *cString;
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unsigned int len;
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}
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- (char *)customString;
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@end
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id _FooClassReference[20];
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@implementation Foo
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- (char *)customString { return cString ; }
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@end
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int main () {
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Foo *string = @"bla";
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return 0;
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}
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// CHECK-FRAGILE: @_FooClassReference ={{.*}} global
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// CHECK-NONFRAGILE: @"OBJC_CLASS_$_Object" = external global
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// CHECK-NONFRAGILE: "OBJC_CLASS_$_Foo" ={{.*}} global
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