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.
44 lines
1.4 KiB
Objective-C
44 lines
1.4 KiB
Objective-C
// RUN: %clang_cc1 -triple i386-apple-darwin10 -emit-llvm -fblocks -fobjc-arc -o - %s | FileCheck %s
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// RUN: %clang_cc1 -triple i386-apple-iossimulator6.0 -emit-llvm -fblocks -fobjc-arc -o - %s | FileCheck %s
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// <rdar://24531556>: implement objc_retainAutoreleasedReturnValue on i386
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// CHECK-LABEL: define{{.*}} i8* @test0()
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id test0(void) {
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extern id test0_helper(void);
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// CHECK: [[T0:%.*]] = call i8* @test0_helper()
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// CHECK-NEXT: ret i8* [[T0]]
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return test0_helper();
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}
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// CHECK-LABEL: define{{.*}} void @test1()
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void test1(void) {
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extern id test1_helper(void);
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// CHECK: [[T0:%.*]] = call i8* @test1_helper()
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// CHECK-NEXT: call void asm sideeffect "mov
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// CHECK-NEXT: [[T1:%.*]] = call i8* @llvm.objc.retainAutoreleasedReturnValue(i8* [[T0]])
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// CHECK-NEXT: store i8* [[T1]],
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// CHECK-NEXT: call void @llvm.objc.storeStrong(
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// CHECK-NEXT: ret void
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id x = test1_helper();
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}
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// rdar://problem/12133032
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// CHECK-LABEL: define {{.*}} @test2()
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@class A;
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A *test2(void) {
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extern A *test2_helper(void);
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// CHECK: [[T0:%.*]] = call [[A:%.*]]* @test2_helper()
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// CHECK-NEXT: ret [[A]]* [[T0]]
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return test2_helper();
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}
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// CHECK-LABEL: define{{.*}} i8* @test3()
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id test3(void) {
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extern A *test3_helper(void);
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// CHECK: [[T0:%.*]] = call [[A]]* @test3_helper()
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// CHECK-NEXT: [[T1:%.*]] = bitcast [[A]]* [[T0]] to i8*
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// CHECK-NEXT: ret i8* [[T1]]
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return test3_helper();
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}
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