mirror of
https://github.com/capstone-engine/llvm-capstone.git
synced 2025-01-10 01:55:08 +00:00
baa78cc6d3
Tracking those can help to provide much better diagnostics in many cases. In general, most of the visitor machinery should be refactored to allow tracking the origin of arbitrary values. rdar://36039765 Differential Revision: https://reviews.llvm.org/D51131 llvm-svn: 340475
132 lines
3.7 KiB
C++
132 lines
3.7 KiB
C++
// 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"
|
|
|
|
void doStuff6(const int& c);
|
|
void doStuff4(const int y);
|
|
void doStuff3(int& g);
|
|
void doStuff_uninit(const int *u);
|
|
|
|
|
|
int f10(void) {
|
|
int *ptr;
|
|
|
|
ptr = new int; //
|
|
if(*ptr) {
|
|
doStuff4(*ptr);
|
|
}
|
|
delete ptr;
|
|
return 0;
|
|
}
|
|
|
|
int f9(void) {
|
|
int *ptr;
|
|
|
|
ptr = new int; //
|
|
|
|
doStuff_uninit(ptr); // no warning
|
|
delete ptr;
|
|
return 0;
|
|
}
|
|
|
|
int f8(void) {
|
|
int *ptr;
|
|
|
|
ptr = new int;
|
|
*ptr = 25;
|
|
|
|
doStuff_uninit(ptr); // no warning?
|
|
delete ptr;
|
|
return 0;
|
|
}
|
|
|
|
void f7(void) {
|
|
int m = 3;
|
|
doStuff6(m); // no warning
|
|
}
|
|
|
|
|
|
int& f6_1_sub(int &p) {
|
|
return p; // expected-note{{Returning without writing to 'p'}}
|
|
// expected-note@-1{{Returning pointer (reference to 't')}}
|
|
}
|
|
|
|
void f6_1(void) {
|
|
int t; // expected-note{{'t' declared without an initial value}}
|
|
int p = f6_1_sub(t); //expected-warning {{Assigned value is garbage or undefined}}
|
|
//expected-note@-1 {{Passing value via 1st parameter 'p'}}
|
|
//expected-note@-2 {{Calling 'f6_1_sub'}}
|
|
//expected-note@-3 {{Returning from 'f6_1_sub'}}
|
|
//expected-note@-4 {{Assigned value is garbage or undefined}}
|
|
int q = p;
|
|
doStuff6(q);
|
|
}
|
|
|
|
void f6_2(void) {
|
|
int t; //expected-note {{'t' declared without an initial value}}
|
|
int &p = t;
|
|
int &s = p;
|
|
int &q = s; //expected-note {{'q' initialized here}}
|
|
doStuff6(q); //expected-warning {{1st function call argument is an uninitialized value}}
|
|
//expected-note@-1 {{1st function call argument is an uninitialized value}}
|
|
}
|
|
|
|
void doStuff6_3(int& q_, int *ptr_) {}
|
|
|
|
void f6_3(void) {
|
|
int *ptr; //expected-note {{'ptr' declared without an initial value}}
|
|
int t;
|
|
int &p = t;
|
|
int &s = p;
|
|
int &q = s;
|
|
doStuff6_3(q,ptr); //expected-warning {{2nd function call argument is an uninitialized value}}
|
|
//expected-note@-1 {{2nd function call argument is an uninitialized value}}
|
|
|
|
}
|
|
|
|
void f6(void) {
|
|
int k; // expected-note {{'k' declared without an initial value}}
|
|
doStuff6(k); // expected-warning {{1st function call argument is an uninitialized value}}
|
|
// expected-note@-1 {{1st function call argument is an uninitialized value}}
|
|
|
|
}
|
|
|
|
|
|
|
|
void f5(void) {
|
|
int t;
|
|
int* tp = &t; // expected-note {{'tp' initialized here}}
|
|
doStuff_uninit(tp); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
|
|
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
|
|
}
|
|
|
|
|
|
void f4(void) {
|
|
int y; // expected-note {{'y' declared without an initial value}}
|
|
doStuff4(y); // expected-warning {{1st function call argument is an uninitialized value}}
|
|
// expected-note@-1 {{1st function call argument is an uninitialized value}}
|
|
}
|
|
|
|
void f3(void) {
|
|
int g;
|
|
doStuff3(g); // no warning
|
|
}
|
|
|
|
int z;
|
|
void f2(void) {
|
|
doStuff_uninit(&z); // no warning
|
|
}
|
|
|
|
void f1(void) {
|
|
int x_=5;
|
|
doStuff_uninit(&x_); // no warning
|
|
}
|
|
|
|
void f_uninit(void) {
|
|
int x; // expected-note {{'x' declared without an initial value}}
|
|
doStuff_uninit(&x); // expected-warning {{1st function call argument is a pointer to uninitialized value}}
|
|
// expected-note@-1 {{1st function call argument is a pointer to uninitialized value}}
|
|
}
|