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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.
37 lines
982 B
C++
37 lines
982 B
C++
// RUN: %clangxx -target x86_64-apple-darwin10 %s -flto -S -o - |\
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// RUN: FileCheck --check-prefix=CHECK-NO-KEXT %s
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// RUN: %clangxx -target x86_64-apple-darwin10 %s -fapple-kext -flto -S -o - |\
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// RUN: FileCheck --check-prefix=CHECK-KEXT %s
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// CHECK-NO-KEXT-NOT: _GLOBAL__D_a
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// CHECK-NO-KEXT: @is_hosted ={{.*}} global
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// CHECK-NO-KEXT: @_ZTI3foo = {{.*}} @_ZTVN10__cxxabiv117
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// CHECK-NO-KEXT: call i32 @__cxa_atexit({{.*}} @_ZN3fooD1Ev
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// CHECK-NO-KEXT: declare i32 @__cxa_atexit
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// CHECK-KEXT: @_ZTV3foo =
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// CHECK-KEXT-NOT: @_ZTVN10__cxxabiv117
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// CHECK-KEXT-NOT: call i32 @__cxa_atexit({{.*}} @_ZN3fooD1Ev
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// CHECK-KEXT-NOT: declare i32 @__cxa_atexit
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// CHECK-KEXT: @is_freestanding ={{.*}} global
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// CHECK-KEXT: _GLOBAL__D_a
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// CHECK-KEXT: call void @_ZN3fooD1Ev(%class.foo* @a)
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class foo {
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public:
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foo();
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virtual ~foo();
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};
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foo a;
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foo::~foo() {}
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#if !(__STDC_HOSTED__ == 1)
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int is_freestanding = 1;
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#else
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int is_hosted = 1;
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#endif
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extern "C" void f1() {
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}
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