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.
15 lines
445 B
Objective-C
15 lines
445 B
Objective-C
// RUN: %clang_cc1 -triple x86_64-apple-macosx10.14.0 %s -emit-llvm -o - | FileCheck %s
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// rdar://45077269
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extern void OBJC_CLASS_$_f;
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Class c = (Class)&OBJC_CLASS_$_f;
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@implementation f @end
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// Check that we override the initializer for c, and that OBJC_CLASS_$_f gets
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// the right definition.
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// CHECK: @c ={{.*}} global i8* bitcast (%struct._class_t* @"OBJC_CLASS_$_f" to i8*)
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// CHECK: @"OBJC_CLASS_$_f" ={{.*}} global %struct._class_t
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