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1b9a6e58a8
Conversion done using the script at https://gist.github.com/nikic/98357b71fd67756b0f064c9517b62a34. These are tests where the conversion worked out of the box and no manual fixup was performed.
34 lines
1.4 KiB
C++
34 lines
1.4 KiB
C++
// RUN: %clang_cc1 %s -triple=x86_64-pc-linux -emit-llvm -o - | FileCheck --check-prefix=X86 %s
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// RUN: %clang_cc1 %s -triple=wasm32 -emit-llvm -o - | FileCheck --check-prefix=WASM %s
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// RUN: %clang_cc1 %s -triple=armv7-apple-darwin9 -emit-llvm -o - | FileCheck --check-prefix=ARM %s
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// Test that destructors are not passed directly to __cxa_atexit when their
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// signatures do not match the type of its first argument.
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// e.g. ARM and WebAssembly have destructors that return this instead of void.
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class Foo {
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public:
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~Foo() {
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}
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};
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Foo global;
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// X86 destructors have void return, and are registered directly with __cxa_atexit.
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// X86: define internal void @__cxx_global_var_init()
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// X86: call i32 @__cxa_atexit(ptr @_ZN3FooD1Ev, ptr @global, ptr @__dso_handle)
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// ARM destructors return this, but can be registered directly with __cxa_atexit
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// because the calling conventions tolerate the mismatch.
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// ARM: define internal void @__cxx_global_var_init()
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// ARM: call i32 @__cxa_atexit(ptr @_ZN3FooD1Ev, ptr @global, ptr @__dso_handle)
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// Wasm destructors return this, and use a wrapper function, which is registered
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// with __cxa_atexit.
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// WASM: define internal void @__cxx_global_var_init()
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// WASM: call i32 @__cxa_atexit(ptr @__cxx_global_array_dtor, ptr null, ptr @__dso_handle)
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// WASM: define internal void @__cxx_global_array_dtor(ptr noundef %0)
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// WASM: %call = call noundef ptr @_ZN3FooD1Ev(ptr {{[^,]*}} @global)
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