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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.
34 lines
910 B
C++
34 lines
910 B
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin10 -fapple-kext -emit-llvm -o - %s | FileCheck %s
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struct Base {
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virtual ~Base();
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} ;
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struct Derived : Base {
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void operator delete(void *) { }
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Derived();
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};
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void foo() {
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Derived d1; // ok
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}
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// CHECK-LABEL: define internal i32 @_Z1fj(
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inline unsigned f(unsigned n) { return n == 0 ? 0 : n + f(n-1); }
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unsigned g(unsigned n) { return f(n); }
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// rdar://problem/10133200: give explicit instantiations external linkage in kernel mode
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// CHECK-LABEL: define{{.*}} void @_Z3barIiEvv()
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template <typename T> void bar() {}
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template void bar<int>();
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// CHECK-LABEL: define internal i32 @_Z5identIiET_S0_(
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template <typename X> X ident(X x) { return x; }
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int foo(int n) { return ident(n); }
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// CHECK-LABEL: define internal void @_ZN7DerivedD1Ev(
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// CHECK-LABEL: define internal void @_ZN7DerivedD0Ev(
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// CHECK-LABEL: define internal void @_ZN7DeriveddlEPv(
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