From b3d5a323a5ca92ea73443499cee2f15db1ff0fb3 Mon Sep 17 00:00:00 2001 From: Roman Divacky Date: Wed, 18 Nov 2009 14:59:57 +0000 Subject: Update clang to r89205. --- test/Analysis/malloc.c | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 test/Analysis/malloc.c (limited to 'test/Analysis/malloc.c') diff --git a/test/Analysis/malloc.c b/test/Analysis/malloc.c new file mode 100644 index 000000000000..6a17cba3497b --- /dev/null +++ b/test/Analysis/malloc.c @@ -0,0 +1,37 @@ +// RUN: clang-cc -analyze -analyzer-experimental-internal-checks -checker-cfref -analyzer-experimental-checks -analyzer-store=region -verify %s +typedef __typeof(sizeof(int)) size_t; +void *malloc(size_t); +void free(void *); + +void f1() { + int *p = malloc(10); + return; // expected-warning{{Allocated memory never released. Potential memory leak.}} +} + +void f1_b() { + int *p = malloc(10); // expected-warning{{Allocated memory never released. Potential memory leak.}} +} + +void f2() { + int *p = malloc(10); + free(p); + free(p); // expected-warning{{Try to free a memory block that has been released}} +} + +// This case tests that storing malloc'ed memory to a static variable which is +// then returned is not leaked. In the absence of known contracts for functions +// or inter-procedural analysis, this is a conservative answer. +int *f3() { + static int *p = 0; + p = malloc(10); + return p; // no-warning +} + +// This case tests that storing malloc'ed memory to a static global variable +// which is then returned is not leaked. In the absence of known contracts for +// functions or inter-procedural analysis, this is a conservative answer. +static int *p_f4 = 0; +int *f4() { + p_f4 = malloc(10); + return p_f4; // no-warning +} -- cgit v1.3