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.
21 lines
681 B
Plaintext
21 lines
681 B
Plaintext
// RUN: %clang_cc1 -fobjc-gc -triple x86_64-apple-darwin10 -fobjc-runtime=macosx-fragile-10.5 -emit-llvm -o - %s | FileCheck %s
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namespace test0 {
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extern id x;
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struct A {
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id x;
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A();
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};
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A::A() : x(test0::x) {}
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// CHECK-LABEL: define{{.*}} void @_ZN5test01AC2Ev(
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// CHECK: [[THIS:%.*]] = alloca [[TEST0:%.*]]*, align 8
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// CHECK-NEXT: store
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// CHECK-NEXT: [[T0:%.*]] = load [[TEST0]]*, [[TEST0]]** [[THIS]]
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// CHECK-NEXT: [[T1:%.*]] = getelementptr inbounds [[TEST0]], [[TEST0]]* [[T0]], i32 0, i32 0
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// CHECK-NEXT: [[T2:%.*]] = load i8*, i8** @_ZN5test01xE
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// CHECK-NEXT: call i8* @objc_assign_strongCast(i8* [[T2]], i8** [[T1]])
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// CHECK-NEXT: ret void
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}
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