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.
19 lines
940 B
Objective-C
19 lines
940 B
Objective-C
// RUN: %clang_cc1 %s -emit-llvm -o - -fblocks -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 | FileCheck %s
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// rdar://8893785
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void MYFUNC() {
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// CHECK-LABEL: define{{.*}} void @MYFUNC()
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// CHECK: [[OBSERVER_SLOT:%.*]] = alloca [[OBSERVER_T:%.*]], align 8
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// CHECK: [[T0:%.*]] = getelementptr inbounds [[OBSERVER_T]], [[OBSERVER_T]]* [[OBSERVER_SLOT]], i32 0, i32 1
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// CHECK: store [[OBSERVER_T]]* [[OBSERVER_SLOT]], [[OBSERVER_T]]** [[T0]]
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// CHECK: [[T1:%.*]] = bitcast i8* ()*
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// CHECK: [[FORWARDING:%.*]] = getelementptr inbounds [[OBSERVER_T]], [[OBSERVER_T]]* [[OBSERVER_SLOT]], i32 0, i32 1
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// CHECK-NEXT: [[T0:%.*]] = load [[OBSERVER_T]]*, [[OBSERVER_T]]** [[FORWARDING]]
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// CHECK-NEXT: [[OBSERVER:%.*]] = getelementptr inbounds [[OBSERVER_T]], [[OBSERVER_T]]* [[T0]], i32 0, i32 6
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// CHECK-NEXT: store i8* [[T1]], i8** [[OBSERVER]]
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__block id observer = ^{ return observer; };
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}
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