forked from OSchip/llvm-project
71 lines
2.9 KiB
C++
71 lines
2.9 KiB
C++
// RUN: %clang_cc1 -triple x86_64-unknown-unknown %s \
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// RUN: -faligned-allocation -fsized-deallocation -emit-llvm -o - \
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// RUN: | FileCheck %s
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typedef __SIZE_TYPE__ size_t;
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// Declare an 'operator new' template to tickle a bug in __builtin_operator_new.
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template<typename T> void *operator new(size_t, int (*)(T));
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// Ensure that this declaration doesn't cause operator new to lose its
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// 'noalias' attribute.
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void *operator new(size_t);
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namespace std {
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struct nothrow_t {};
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enum class align_val_t : size_t { __zero = 0,
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__max = (size_t)-1 };
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}
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std::nothrow_t nothrow;
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// Declare the reserved placement operators.
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void *operator new(size_t, void*) throw();
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void operator delete(void*, void*) throw();
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void *operator new[](size_t, void*) throw();
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void operator delete[](void*, void*) throw();
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// Declare the replaceable global allocation operators.
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void *operator new(size_t, const std::nothrow_t &) throw();
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void *operator new[](size_t, const std::nothrow_t &) throw();
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void operator delete(void *, const std::nothrow_t &) throw();
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void operator delete[](void *, const std::nothrow_t &) throw();
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// Declare some other placement operators.
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void *operator new(size_t, void*, bool) throw();
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void *operator new[](size_t, void*, bool) throw();
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// CHECK-LABEL: define void @test_basic(
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extern "C" void test_basic() {
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// CHECK: call noalias nonnull i8* @_Znwm(i64 4) [[ATTR_BUILTIN_NEW:#[^ ]*]]
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// CHECK: call void @_ZdlPv({{.*}}) [[ATTR_BUILTIN_DELETE:#[^ ]*]]
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// CHECK: ret void
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__builtin_operator_delete(__builtin_operator_new(4));
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}
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// CHECK: declare nonnull i8* @_Znwm(i64) [[ATTR_NOBUILTIN:#[^ ]*]]
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// CHECK: declare void @_ZdlPv(i8*) [[ATTR_NOBUILTIN_NOUNWIND:#[^ ]*]]
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// CHECK-LABEL: define void @test_aligned_alloc(
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extern "C" void test_aligned_alloc() {
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// CHECK: call noalias nonnull align 4 i8* @_ZnwmSt11align_val_t(i64 4, i64 4) [[ATTR_BUILTIN_NEW:#[^ ]*]]
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// CHECK: call void @_ZdlPvSt11align_val_t({{.*}}, i64 4) [[ATTR_BUILTIN_DELETE:#[^ ]*]]
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__builtin_operator_delete(__builtin_operator_new(4, std::align_val_t(4)), std::align_val_t(4));
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}
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// CHECK: declare nonnull i8* @_ZnwmSt11align_val_t(i64, i64) [[ATTR_NOBUILTIN:#[^ ]*]]
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// CHECK: declare void @_ZdlPvSt11align_val_t(i8*, i64) [[ATTR_NOBUILTIN_NOUNWIND:#[^ ]*]]
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// CHECK-LABEL: define void @test_sized_delete(
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extern "C" void test_sized_delete() {
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// CHECK: call noalias nonnull i8* @_Znwm(i64 4) [[ATTR_BUILTIN_NEW:#[^ ]*]]
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// CHECK: call void @_ZdlPvm({{.*}}, i64 4) [[ATTR_BUILTIN_DELETE:#[^ ]*]]
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__builtin_operator_delete(__builtin_operator_new(4), 4);
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}
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// CHECK: declare void @_ZdlPvm(i8*, i64) [[ATTR_NOBUILTIN_UNWIND:#[^ ]*]]
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// CHECK-DAG: attributes [[ATTR_NOBUILTIN]] = {{[{].*}} nobuiltin {{.*[}]}}
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// CHECK-DAG: attributes [[ATTR_NOBUILTIN_NOUNWIND]] = {{[{].*}} nobuiltin nounwind {{.*[}]}}
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// CHECK-DAG: attributes [[ATTR_BUILTIN_NEW]] = {{[{].*}} builtin {{.*[}]}}
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// CHECK-DAG: attributes [[ATTR_BUILTIN_DELETE]] = {{[{].*}} builtin {{.*[}]}}
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