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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.
17 lines
420 B
C++
17 lines
420 B
C++
// RUN: %clang_cc1 %s -triple x86_64-apple-darwin10 -emit-llvm -o - | FileCheck %s
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// Check that we don't emit the complete constructor/destructor for this class.
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struct A {
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virtual void f() = 0;
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A();
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~A();
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};
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// CHECK-NOT: define{{.*}} void @_ZN1AC1Ev
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// CHECK-LABEL: define{{.*}} void @_ZN1AC2Ev
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// CHECK-LABEL: define{{.*}} void @_ZN1AD2Ev
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// CHECK-LABEL: define{{.*}} void @_ZN1AD1Ev
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A::A() { }
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A::~A() { }
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