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.
35 lines
1.2 KiB
Objective-C
35 lines
1.2 KiB
Objective-C
// RUN: %clang_cc1 -triple x86_64-apple-darwin9 -fobjc-dispatch-method=non-legacy -fobjc-arc -emit-llvm -o - %s | FileCheck %s
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// CHECK: %[[STRUCT_STRONG:.*]] = type { i8* }
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typedef struct {
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id x;
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} Strong;
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Strong getStrong(void);
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@interface I0
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- (void)passStrong:(Strong)a;
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@end
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// CHECK-LABEL: define{{.*}} void @test0(
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// CHECK: %[[AGG_TMP:.*]] = alloca %[[STRUCT_STRONG]], align 8
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// CHECK: %[[CALL:.*]] = call i8* @getStrong()
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// CHECK-NEXT: %[[COERCE_DIVE:.*]] = getelementptr inbounds %[[STRUCT_STRONG]], %[[STRUCT_STRONG]]* %[[AGG_TMP]], i32 0, i32 0
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// CHECK-NEXT: store i8* %[[CALL]], i8** %[[COERCE_DIVE]], align 8
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// CHECK: %[[MSGSEND_FN:.*]] = load i8*, i8**
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// CHECK: %[[V5:.*]] = bitcast i8* %[[MSGSEND_FN]] to void (i8*, i8*, i8*)*
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// CHECK: %[[COERCE_DIVE1:.*]] = getelementptr inbounds %[[STRUCT_STRONG]], %[[STRUCT_STRONG]]* %[[AGG_TMP]], i32 0, i32 0
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// CHECK: %[[V6:.*]] = load i8*, i8** %[[COERCE_DIVE1]], align 8
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// CHECK: call void %[[V5]]({{.*}}, i8* %[[V6]])
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// CHECK: br
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// CHECK: %[[V7:.*]] = bitcast %[[STRUCT_STRONG]]* %[[AGG_TMP]] to i8**
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// CHECK: call void @__destructor_8_s0(i8** %[[V7]])
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// CHECK: br
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void test0(I0 *a) {
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[a passStrong:getStrong()];
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}
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