3849dea8c9
A patch by Karthik Bhat!
This patch fixes a regression introduced by r224398. Prior to r224398
we were able to analyze the following code in test-include.c and report
a null deref in this case. But post r224398 this analysis is being skipped.
E.g.
// test-include.c
#include "test-include.h"
void test(int * data) {
data = 0;
*data = 1;
}
// test-include.h
void test(int * data);
This patch uses the function body (instead of its declaration) as the location
of the function when deciding if the Decl should be analyzed with path-sensitive
analysis. (Prior to r224398, the call graph was guaranteed to have a definition
when available.)
llvm-svn: 240800
21 lines
570 B
C
21 lines
570 B
C
// RUN: %clang_cc1 -analyze -analyzer-checker=core -verify %s
|
|
|
|
#include "test-include.h"
|
|
#define DIVYX(X,Y) Y/X
|
|
|
|
void test_01(int *data) {
|
|
data = 0;
|
|
*data = 1; // expected-warning{{Dereference of null pointer}}
|
|
}
|
|
|
|
int test_02() {
|
|
int res = DIVXY(1,0); // expected-warning{{Division by zero}}
|
|
// expected-warning@-1{{division by zero is undefined}}
|
|
return res;
|
|
}
|
|
|
|
int test_03() {
|
|
int res = DIVYX(0,1); // expected-warning{{Division by zero}}
|
|
// expected-warning@-1{{division by zero is undefined}}
|
|
return res;
|
|
} |