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.
67 lines
1.5 KiB
Objective-C
67 lines
1.5 KiB
Objective-C
// RUN: %clang_cc1 -triple x86_64-apple-darwin -emit-llvm -o %t %s
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// RUN: FileCheck < %t %s
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// rdar://11777609
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typedef struct {} Z;
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@interface A
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-(void)bar:(Z)a;
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-(void)foo:(Z)a : (char*)b : (Z)c : (double) d;
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@end
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@implementation A
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-(void)bar:(Z)a {}
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-(void)foo:(Z)a: (char*)b : (Z)c : (double) d {}
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@end
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// CHECK: private unnamed_addr constant [14 x i8] c"v16@0:8{?=}16
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// CHECK: private unnamed_addr constant [26 x i8] c"v32@0:8{?=}16*16{?=}24d24
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// rdar://13190095
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@interface NSObject @end
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@class BABugExample;
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typedef BABugExample BABugExampleRedefinition;
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@interface BABugExample : NSObject {
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BABugExampleRedefinition *_property; // .asciz "^{BABugExample=^{BABugExample}}"
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}
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@property (copy) BABugExampleRedefinition *property;
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@end
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@implementation BABugExample
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@synthesize property = _property;
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@end
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// CHECK: private unnamed_addr constant [8 x i8] c"@16
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// rdar://14408244
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@class SCNCamera;
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typedef SCNCamera C3DCamera;
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typedef struct
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{
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C3DCamera *presentationInstance;
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} C3DCameraStorage;
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@interface SCNCamera
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@end
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@implementation SCNCamera
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{
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C3DCameraStorage _storage;
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}
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@end
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// CHECK: private unnamed_addr constant [39 x i8] c"{?=\22presentationInstance\22@\22SCNCamera\22}\00"
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// rdar://16655340
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int i;
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typeof(@encode(typeof(i))) e = @encode(typeof(i));
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const char * Test()
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{
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return e;
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}
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// CHECK: @e ={{.*}} global [2 x i8] c"i\00", align 1
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// CHECK: define{{.*}} i8* @Test()
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// CHECK: ret i8* getelementptr inbounds ([2 x i8], [2 x i8]* @e, i64 0, i64 0)
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