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[analyzer] NFC: Run many existing C++ tests with a custom operator new(). 

In order to provide more test coverage for inlined operator new(), add more
run-lines to existing test cases, which would trigger our fake header
to provide a body for operator new(). Most of the code should still behave
reasonably. When behavior intentionally changes, #ifs are provided.

Differential Revision: https://reviews.llvm.org/D42221

llvm-svn: 323376
This commit is contained in:
Artem Dergachev 2018-01-24 21:24:10 +00:00
parent 7f20eacf77
commit d3c54313ab
11 changed files with 40 additions and 3 deletions
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11
clang/test/Analysis/Inputs/system-header-simulator-cxx.h
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@ -584,10 +584,21 @@ namespace std {
}
#ifdef TEST_INLINABLE_ALLOCATORS
namespace std {
void *malloc(size_t);
void free(void *);
}
void* operator new(std::size_t size, const std::nothrow_t&) throw() { return std::malloc(size); }
void* operator new[](std::size_t size, const std::nothrow_t&) throw() { return std::malloc(size); }
void operator delete(void* ptr, const std::nothrow_t&) throw() { std::free(ptr); }
void operator delete[](void* ptr, const std::nothrow_t&) throw() { std::free(ptr); }
#else
void* operator new(std::size_t, const std::nothrow_t&) throw();
void* operator new[](std::size_t, const std::nothrow_t&) throw();
void operator delete(void*, const std::nothrow_t&) throw();
void operator delete[](void*, const std::nothrow_t&) throw();
#endif
void* operator new (std::size_t size, void* ptr) throw() { return ptr; };
void* operator new[] (std::size_t size, void* ptr) throw() { return ptr; };

1
clang/test/Analysis/MismatchedDeallocator-checker-test.mm
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@ -1,4 +1,5 @@
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.MismatchedDeallocator -fblocks -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.MismatchedDeallocator -fblocks -DTEST_INLINABLE_ALLOCATORS -verify %s
#include "Inputs/system-header-simulator-objc.h"
#include "Inputs/system-header-simulator-cxx.h"

18
clang/test/Analysis/NewDelete-checker-test.cpp
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@ -2,6 +2,11 @@
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDeleteLeaks -DLEAKS -std=c++11 -fblocks -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete -std=c++11 -fblocks -analyzer-config c++-allocator-inlining=true -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDeleteLeaks -DLEAKS -std=c++11 -fblocks -analyzer-config c++-allocator-inlining=true -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete -std=c++11 -fblocks -DTEST_INLINABLE_ALLOCATORS -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDeleteLeaks -DLEAKS -std=c++11 -fblocks -DTEST_INLINABLE_ALLOCATORS -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete -std=c++11 -fblocks -analyzer-config c++-allocator-inlining=true -DTEST_INLINABLE_ALLOCATORS -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDeleteLeaks -DLEAKS -std=c++11 -fblocks -analyzer-config c++-allocator-inlining=true -DTEST_INLINABLE_ALLOCATORS -verify %s
#include "Inputs/system-header-simulator-cxx.h"
typedef __typeof__(sizeof(int)) size_t;
@ -47,14 +52,18 @@ void testGlobalNoThrowPlacementOpNewBeforeOverload() {
void *p = operator new(0, std::nothrow);
}
#ifdef LEAKS
// expected-warning@-2{{Potential leak of memory pointed to by 'p'}}
#ifndef TEST_INLINABLE_ALLOCATORS
// expected-warning@-3{{Potential leak of memory pointed to by 'p'}}
#endif
#endif
void testGlobalNoThrowPlacementExprNewBeforeOverload() {
int *p = new(std::nothrow) int;
}
#ifdef LEAKS
// expected-warning@-2{{Potential leak of memory pointed to by 'p'}}
#ifndef TEST_INLINABLE_ALLOCATORS
// expected-warning@-3{{Potential leak of memory pointed to by 'p'}}
#endif
#endif
//----- Standard pointer placement operators
@ -188,7 +197,10 @@ void testExprDeleteArrArg() {
void testAllocDeallocNames() {
int *p = new(std::nothrow) int[1];
delete[] (++p); // expected-warning{{Argument to 'delete[]' is offset by 4 bytes from the start of memory allocated by 'new[]'}}
delete[] (++p);
#ifndef TEST_INLINABLE_ALLOCATORS
// expected-warning@-2{{Argument to 'delete[]' is offset by 4 bytes from the start of memory allocated by 'new[]'}}
#endif
}
//--------------------------------

2
clang/test/Analysis/NewDelete-intersections.mm
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@ -1,5 +1,7 @@
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete -std=c++11 -fblocks -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete,cplusplus.NewDeleteLeaks -std=c++11 -DLEAKS -fblocks -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete -std=c++11 -fblocks -DTEST_INLINABLE_ALLOCATORS -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,cplusplus.NewDelete,cplusplus.NewDeleteLeaks -std=c++11 -DLEAKS -fblocks -DTEST_INLINABLE_ALLOCATORS -verify %s
#include "Inputs/system-header-simulator-cxx.h"
#include "Inputs/system-header-simulator-objc.h"

1
clang/test/Analysis/ctor.mm
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@ -1,4 +1,5 @@
// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -fobjc-arc -analyzer-config c++-inlining=constructors -Wno-null-dereference -std=c++11 -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,debug.ExprInspection -fobjc-arc -analyzer-config c++-inlining=constructors -Wno-null-dereference -std=c++11 -verify -DTEST_INLINABLE_ALLOCATORS %s
#include "Inputs/system-header-simulator-cxx.h"

2
clang/test/Analysis/diagnostics/implicit-cxx-std-suppression.cpp
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@ -1,5 +1,7 @@
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,cplusplus.NewDelete,debug.ExprInspection -analyzer-config c++-container-inlining=true -analyzer-config c++-stdlib-inlining=false -std=c++11 -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,cplusplus.NewDelete,debug.ExprInspection -analyzer-config c++-container-inlining=true -analyzer-config c++-stdlib-inlining=true -std=c++11 -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,cplusplus.NewDelete,debug.ExprInspection -analyzer-config c++-container-inlining=true -analyzer-config c++-stdlib-inlining=false -std=c++11 -DTEST_INLINABLE_ALLOCATORS -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,cplusplus.NewDelete,debug.ExprInspection -analyzer-config c++-container-inlining=true -analyzer-config c++-stdlib-inlining=true -std=c++11 -DTEST_INLINABLE_ALLOCATORS -verify %s
// expected-no-diagnostics

2
clang/test/Analysis/initializer.cpp
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@ -1,5 +1,7 @@
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,cplusplus.NewDeleteLeaks,debug.ExprInspection -analyzer-config c++-inlining=constructors -std=c++11 -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,cplusplus.NewDeleteLeaks,debug.ExprInspection -analyzer-config c++-inlining=constructors -std=c++17 -DCPLUSPLUS17 -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,cplusplus.NewDeleteLeaks,debug.ExprInspection -analyzer-config c++-inlining=constructors -std=c++11 -DTEST_INLINABLE_ALLOCATORS -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,cplusplus.NewDeleteLeaks,debug.ExprInspection -analyzer-config c++-inlining=constructors -std=c++17 -DCPLUSPLUS17 -DTEST_INLINABLE_ALLOCATORS -verify %s
void clang_analyzer_eval(bool);

2
clang/test/Analysis/inlining/containers.cpp
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@ -1,5 +1,7 @@
// RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core,unix.Malloc,debug.ExprInspection -analyzer-config c++-inlining=destructors -analyzer-config c++-container-inlining=false -verify %s
// RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core,unix.Malloc,debug.ExprInspection -analyzer-config c++-inlining=destructors -analyzer-config c++-container-inlining=true -DINLINE=1 -verify %s
// RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core,unix.Malloc,debug.ExprInspection -analyzer-config c++-inlining=destructors -analyzer-config c++-container-inlining=false -DTEST_INLINABLE_ALLOCATORS -verify %s
// RUN: %clang_analyze_cc1 -std=c++11 -analyzer-checker=core,unix.Malloc,debug.ExprInspection -analyzer-config c++-inlining=destructors -analyzer-config c++-container-inlining=true -DTEST_INLINABLE_ALLOCATORS -DINLINE=1 -verify %s
#ifndef HEADER

2
clang/test/Analysis/malloc.cpp
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@ -1,5 +1,7 @@
// RUN: %clang_analyze_cc1 -w -analyzer-checker=core,alpha.deadcode.UnreachableCode,alpha.core.CastSize,unix.Malloc,cplusplus.NewDelete -analyzer-store=region -verify %s
// RUN: %clang_analyze_cc1 -triple i386-unknown-linux-gnu -w -analyzer-checker=core,alpha.deadcode.UnreachableCode,alpha.core.CastSize,unix.Malloc,cplusplus.NewDelete -analyzer-store=region -verify %s
// RUN: %clang_analyze_cc1 -w -analyzer-checker=core,alpha.deadcode.UnreachableCode,alpha.core.CastSize,unix.Malloc,cplusplus.NewDelete -analyzer-store=region -DTEST_INLINABLE_ALLOCATORS -verify %s
// RUN: %clang_analyze_cc1 -triple i386-unknown-linux-gnu -w -analyzer-checker=core,alpha.deadcode.UnreachableCode,alpha.core.CastSize,unix.Malloc,cplusplus.NewDelete -analyzer-store=region -DTEST_INLINABLE_ALLOCATORS -verify %s
#include "Inputs/system-header-simulator-cxx.h"

1
clang/test/Analysis/new.cpp
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@ -1,4 +1,5 @@
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,debug.ExprInspection -analyzer-store region -std=c++11 -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=core,unix.Malloc,debug.ExprInspection -analyzer-store region -std=c++11 -DTEST_INLINABLE_ALLOCATORS -verify %s
#include "Inputs/system-header-simulator-cxx.h"
void clang_analyzer_eval(bool);

1
clang/test/Analysis/uninit-const.cpp
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@ -1,4 +1,5 @@
// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.NewDelete,core,alpha.core.CallAndMessageUnInitRefArg -analyzer-output=text -verify %s
// RUN: %clang_analyze_cc1 -analyzer-checker=cplusplus.NewDelete,core,alpha.core.CallAndMessageUnInitRefArg -analyzer-output=text -DTEST_INLINABLE_ALLOCATORS -verify %s
// Passing uninitialized const data to unknown function
#include "Inputs/system-header-simulator-cxx.h"