137 lines
6.3 KiB
C++
137 lines
6.3 KiB
C++
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// RUN: %clang_analyze_cc1 -std=c++20 -fblocks -verify %s \
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// RUN: -analyzer-checker=core \
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// RUN: -analyzer-checker=debug.AnalysisOrder \
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// RUN: -analyzer-config debug.AnalysisOrder:PreStmtCXXNewExpr=true \
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// RUN: -analyzer-config debug.AnalysisOrder:PostStmtCXXNewExpr=true \
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// RUN: -analyzer-config debug.AnalysisOrder:PreStmtCXXDeleteExpr=true \
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// RUN: -analyzer-config debug.AnalysisOrder:PostStmtCXXDeleteExpr=true \
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// RUN: -analyzer-config debug.AnalysisOrder:PreCall=true \
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// RUN: -analyzer-config debug.AnalysisOrder:PostCall=true \
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// RUN: 2>&1 | FileCheck %s
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// expected-no-diagnostics
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#include "Inputs/system-header-simulator-cxx.h"
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void f() {
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// C++20 standard draft 17.6.1.15:
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// Required behavior: A call to an operator delete with a size parameter may
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// be changed to a call to the corresponding operator delete without a size
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// parameter, without affecting memory allocation. [ Note: A conforming
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// implementation is for operator delete(void* ptr, size_t size) to simply
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// call operator delete(ptr). — end note ]
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//
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// C++20 standard draft 17.6.1.24, about nothrow operator delete:
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// void operator delete(void* ptr, const std::nothrow_t&) noexcept;
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// void operator delete(void* ptr, std::align_val_t alignment,
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// const std::nothrow_t&) noexcept;
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// Default behavior: Calls operator delete(ptr), or operator delete(ptr,
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// alignment), respectively.
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// FIXME: All calls to operator new should be CXXAllocatorCall, and calls to
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// operator delete should be CXXDeallocatorCall.
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{
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int *p = new int;
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delete p;
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// CHECK: PreCall (operator new) [CXXAllocatorCall]
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// CHECK-NEXT: PostCall (operator new) [CXXAllocatorCall]
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// CHECK-NEXT: PreStmt<CXXNewExpr>
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// CHECK-NEXT: PostStmt<CXXNewExpr>
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// CHECK-NEXT: PreStmt<CXXDeleteExpr>
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// CHECK-NEXT: PostStmt<CXXDeleteExpr>
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// CHECK-NEXT: PreCall (operator delete) [CXXDeallocatorCall]
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// CHECK-NEXT: PostCall (operator delete) [CXXDeallocatorCall]
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p = new int;
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operator delete(p, 23542368);
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// CHECK-NEXT: PreCall (operator new) [CXXAllocatorCall]
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// CHECK-NEXT: PostCall (operator new) [CXXAllocatorCall]
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// CHECK-NEXT: PreStmt<CXXNewExpr>
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// CHECK-NEXT: PostStmt<CXXNewExpr>
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// CHECK-NEXT: PreCall (operator delete) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator delete) [SimpleFunctionCall]
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void *v = operator new(sizeof(int[2]), std::align_val_t(2));
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operator delete(v, std::align_val_t(2));
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// CHECK-NEXT: PreCall (operator new) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator new) [SimpleFunctionCall]
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// CHECK-NEXT: PreCall (operator delete) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator delete) [SimpleFunctionCall]
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v = operator new(sizeof(int[2]), std::align_val_t(2));
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operator delete(v, 345345, std::align_val_t(2));
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// CHECK-NEXT: PreCall (operator new) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator new) [SimpleFunctionCall]
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// CHECK-NEXT: PreCall (operator delete) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator delete) [SimpleFunctionCall]
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p = new (std::nothrow) int;
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operator delete(p, std::nothrow);
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// CHECK-NEXT: PreCall (operator new) [CXXAllocatorCall]
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// CHECK-NEXT: PostCall (operator new) [CXXAllocatorCall]
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// CHECK-NEXT: PreStmt<CXXNewExpr>
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// CHECK-NEXT: PostStmt<CXXNewExpr>
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// CHECK-NEXT: PreCall (operator delete) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator delete) [SimpleFunctionCall]
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v = operator new(sizeof(int[2]), std::align_val_t(2), std::nothrow);
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operator delete(v, std::align_val_t(2), std::nothrow);
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// CHECK-NEXT: PreCall (operator new) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator new) [SimpleFunctionCall]
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// CHECK-NEXT: PreCall (operator delete) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator delete) [SimpleFunctionCall]
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}
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{
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int *p = new int[2];
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delete[] p;
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// CHECK-NEXT: PreCall (operator new[]) [CXXAllocatorCall]
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// CHECK-NEXT: PostCall (operator new[]) [CXXAllocatorCall]
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// CHECK-NEXT: PreStmt<CXXNewExpr>
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// CHECK-NEXT: PostStmt<CXXNewExpr>
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// CHECK-NEXT: PreStmt<CXXDeleteExpr>
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// CHECK-NEXT: PostStmt<CXXDeleteExpr>
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// CHECK-NEXT: PreCall (operator delete[]) [CXXDeallocatorCall]
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// CHECK-NEXT: PostCall (operator delete[]) [CXXDeallocatorCall]
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p = new int[2];
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operator delete[](p, 23542368);
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// CHECK-NEXT: PreCall (operator new[]) [CXXAllocatorCall]
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// CHECK-NEXT: PostCall (operator new[]) [CXXAllocatorCall]
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// CHECK-NEXT: PreStmt<CXXNewExpr>
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// CHECK-NEXT: PostStmt<CXXNewExpr>
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// CHECK-NEXT: PreCall (operator delete[]) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator delete[]) [SimpleFunctionCall]
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void *v = operator new[](sizeof(int[2]), std::align_val_t(2));
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operator delete[](v, std::align_val_t(2));
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// CHECK-NEXT: PreCall (operator new[]) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator new[]) [SimpleFunctionCall]
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// CHECK-NEXT: PreCall (operator delete[]) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator delete[]) [SimpleFunctionCall]
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v = operator new[](sizeof(int[2]), std::align_val_t(2));
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operator delete[](v, 345345, std::align_val_t(2));
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// CHECK-NEXT: PreCall (operator new[]) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator new[]) [SimpleFunctionCall]
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// CHECK-NEXT: PreCall (operator delete[]) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator delete[]) [SimpleFunctionCall]
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p = new (std::nothrow) int[2];
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operator delete[](p, std::nothrow);
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// CHECK-NEXT: PreCall (operator new[]) [CXXAllocatorCall]
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// CHECK-NEXT: PostCall (operator new[]) [CXXAllocatorCall]
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// CHECK-NEXT: PreStmt<CXXNewExpr>
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// CHECK-NEXT: PostStmt<CXXNewExpr>
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// CHECK-NEXT: PreCall (operator delete[]) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator delete[]) [SimpleFunctionCall]
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v = operator new[](sizeof(int[2]), std::align_val_t(2), std::nothrow);
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operator delete[](v, std::align_val_t(2), std::nothrow);
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// CHECK-NEXT: PreCall (operator new[]) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator new[]) [SimpleFunctionCall]
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// CHECK-NEXT: PreCall (operator delete[]) [SimpleFunctionCall]
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// CHECK-NEXT: PostCall (operator delete[]) [SimpleFunctionCall]
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}
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}
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