Import Clang, at r72732.

1 files changed, 53 insertions, 0 deletions

diff --git a/test/Analysis/uninit-vals.c b/test/Analysis/uninit-vals.c
new file mode 100644
index 0000000..d69250b
--- /dev/null
+++ b/test/Analysis/uninit-vals.c
@@ -0,0 +1,53 @@
+// RUN: clang-cc -analyze -warn-uninit-values -verify %s
+
+int f1() {
+  int x;
+  return x; // expected-warning {{use of uninitialized variable}}
+}
+
+int f2(int x) {
+  int y;
+  int z = x + y; // expected-warning {{use of uninitialized variable}}
+  return z;
+}
+
+
+int f3(int x) {
+  int y;
+  return x ? 1 : y; // expected-warning {{use of uninitialized variable}}
+}
+
+int f4(int x) {
+  int y;
+  if (x) y = 1;
+  return y; // expected-warning {{use of uninitialized variable}}
+}
+
+int f5() {
+  int a;
+  a = 30; // no-warning
+}
+
+void f6(int i) {
+  int x;
+  for (i = 0 ; i < 10; i++)
+    printf("%d",x++); // expected-warning {{use of uninitialized variable}} \
+  // expected-warning{{implicitly declaring C library function 'printf' with type 'int (char const *, ...)'}} \
+  // expected-note{{please include the header <stdio.h> or explicitly provide a declaration for 'printf'}}
+}
+
+void f7(int i) {
+  int x = i;
+  int y;
+  for (i = 0; i < 10; i++ ) {
+    printf("%d",x++); // no-warning
+    x += y; // expected-warning {{use of uninitialized variable}}
+  }
+}
+
+int f8(int j) {
+  int x = 1, y = x + 1;
+  if (y) // no-warning
+    return x;
+  return y;
+}