fd739804e0
For a default visibility external linkage definition, dso_local is set for ELF
-fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar
to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences.
To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition,
which sets dso_local for default visibility external linkage definitions.
To make this flip smooth and enable future (dso_local as definition default),
this patch replaces (function) `define ` with `define{{.*}} `,
(variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
40 lines
1.2 KiB
Objective-C
40 lines
1.2 KiB
Objective-C
// RUN: %clang_cc1 -triple x86_64-unknown-freebsd -S -emit-llvm -fobjc-runtime=gnustep-2.0 -o - %s | FileCheck %s
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@protocol X
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@optional
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- (id)x;
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@required
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+ (void*)y;
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@property int reqProp;
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@optional
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@property int optProp;
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@end
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// Check that we get some plausible-looking method lists.
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// CHECK: internal global { i32, i32, [2 x { i8*, i8* }] } { i32 2, i32 16,
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// CHECK-SAME: @".objc_selector_reqProp_i16\010:8"
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// CHECK-SAME: @".objc_selector_setReqProp:_v20\010:8i16"
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// CHECK: internal global { i32, i32, [3 x { i8*, i8* }] } { i32 3, i32 16,
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// CHECK-SAME: @".objc_selector_x_\0116\010:8"
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// CHECK-SAME: @".objc_selector_optProp_i16\010:8"
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// CHECK-SAME: @".objc_selector_setOptProp:_v20\010:8i16"
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// Check that we're emitting the protocol and a correctly initialised
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// indirection variable.
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// CHECK: @._OBJC_PROTOCOL_X ={{.*}} global
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// CHECK-SAME: , section "__objc_protocols", comdat, align 8
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// CHECK: @._OBJC_REF_PROTOCOL_X = linkonce_odr global
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// CHECK-SAME: @._OBJC_PROTOCOL_X
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// CHECK-SAME: , section "__objc_protocol_refs", comdat, align 8
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// Check that we load from the indirection variable on protocol references.
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// CHECK: define{{.*}} i8* @x()
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// CHECK: = load
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// CHECK-SAME: @._OBJC_REF_PROTOCOL_X, align 8
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void *x()
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{
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return @protocol(X);
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}
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