summaryrefslogtreecommitdiffstats
path: root/test/Analysis/uninit-vals-ps.c
diff options
context:
space:
mode:
Diffstat (limited to 'test/Analysis/uninit-vals-ps.c')
-rw-r--r--test/Analysis/uninit-vals-ps.c85
1 files changed, 85 insertions, 0 deletions
diff --git a/test/Analysis/uninit-vals-ps.c b/test/Analysis/uninit-vals-ps.c
new file mode 100644
index 0000000..4177126
--- /dev/null
+++ b/test/Analysis/uninit-vals-ps.c
@@ -0,0 +1,85 @@
+// RUN: clang-cc -analyze -checker-cfref -verify %s &&
+// RUN: clang-cc -analyze -checker-cfref -analyzer-store=region -verify %s
+
+struct FPRec {
+ void (*my_func)(int * x);
+};
+
+int bar(int x);
+
+int f1_a(struct FPRec* foo) {
+ int x;
+ (*foo->my_func)(&x);
+ return bar(x)+1; // no-warning
+}
+
+int f1_b() {
+ int x;
+ return bar(x)+1; // expected-warning{{Pass-by-value argument in function call is undefined.}}
+}
+
+int f2() {
+
+ int x;
+
+ if (x+1) // expected-warning{{Branch}}
+ return 1;
+
+ return 2;
+}
+
+int f2_b() {
+ int x;
+
+ return ((x+1)+2+((x))) + 1 ? 1 : 2; // expected-warning{{Branch}}
+}
+
+int f3(void) {
+ int i;
+ int *p = &i;
+ if (*p > 0) // expected-warning{{Branch condition evaluates to an uninitialized value}}
+ return 0;
+ else
+ return 1;
+}
+
+void f4_aux(float* x);
+float f4(void) {
+ float x;
+ f4_aux(&x);
+ return x; // no-warning
+}
+
+struct f5_struct { int x; };
+void f5_aux(struct f5_struct* s);
+int f5(void) {
+ struct f5_struct s;
+ f5_aux(&s);
+ return s.x; // no-warning
+}
+
+int ret_uninit() {
+ int i;
+ int *p = &i;
+ return *p; // expected-warning{{Uninitialized or undefined value returned to caller.}}
+}
+
+// <rdar://problem/6451816>
+typedef unsigned char Boolean;
+typedef const struct __CFNumber * CFNumberRef;
+typedef signed long CFIndex;
+typedef CFIndex CFNumberType;
+typedef unsigned long UInt32;
+typedef UInt32 CFStringEncoding;
+typedef const struct __CFString * CFStringRef;
+extern Boolean CFNumberGetValue(CFNumberRef number, CFNumberType theType, void *valuePtr);
+extern CFStringRef CFStringConvertEncodingToIANACharSetName(CFStringEncoding encoding);
+
+CFStringRef rdar_6451816(CFNumberRef nr) {
+ CFStringEncoding encoding;
+ // &encoding is casted to void*. This test case tests whether or not
+ // we properly invalidate the value of 'encoding'.
+ CFNumberGetValue(nr, 9, &encoding);
+ return CFStringConvertEncodingToIANACharSetName(encoding); // no-warning
+}
+
OpenPOWER on IntegriCloud