Add the clang library to the repo (with some of my changes, too).

1 files changed, 95 insertions, 0 deletions

diff --git a/clang/test/Analysis/nil-receiver-undefined-larger-than-voidptr-ret.m b/clang/test/Analysis/nil-receiver-undefined-larger-than-voidptr-ret.m
new file mode 100644
index 0000000..e4d5aaf
--- /dev/null
+++ b/clang/test/Analysis/nil-receiver-undefined-larger-than-voidptr-ret.m
@@ -0,0 +1,95 @@
+// RUN: %clang_cc1 -triple i386-apple-darwin8 -analyze -analyzer-checker=core,experimental.core -analyzer-constraints=basic -analyzer-store=region -Wno-objc-root-class %s 2>&1 | FileCheck -check-prefix=darwin8 %s
+// RUN: %clang_cc1 -triple i386-apple-darwin9 -analyze -analyzer-checker=core,experimental.core -analyzer-constraints=basic -analyzer-store=region -Wno-objc-root-class %s 2>&1 | FileCheck -check-prefix=darwin9 %s
+// RUN: %clang_cc1 -triple thumbv6-apple-ios4.0 -analyze -analyzer-checker=core,experimental.core -analyzer-constraints=basic -analyzer-store=region -Wno-objc-root-class %s 2>&1 | FileCheck -check-prefix=darwin9 %s
+
+@interface MyClass {}
+- (void *)voidPtrM;
+- (int)intM;
+- (long long)longlongM;
+- (unsigned long long)unsignedLongLongM;
+- (double)doubleM;
+- (long double)longDoubleM;
+- (void)voidM;
+@end
+@implementation MyClass
+- (void *)voidPtrM { return (void *)0; }
+- (int)intM { return 0; }
+- (long long)longlongM { return 0; }
+- (unsigned long long)unsignedLongLongM { return 0; }
+- (double)doubleM { return 0.0; }
+- (long double)longDoubleM { return 0.0; }
+- (void)voidM {}
+@end
+
+void createFoo() {
+  MyClass *obj = 0;  
+  
+  void *v = [obj voidPtrM]; // no-warning
+  int i = [obj intM]; // no-warning
+}
+
+void createFoo2() {
+  MyClass *obj = 0;  
+  
+  long double ld = [obj longDoubleM];
+}
+
+void createFoo3() {
+  MyClass *obj;
+  obj = 0;  
+  
+  long long ll = [obj longlongM];
+}
+
+void createFoo4() {
+  MyClass *obj = 0;  
+  
+  double d = [obj doubleM];
+}
+
+void createFoo5() {
+  MyClass *obj = (id)@"";  
+  
+  double d = [obj doubleM]; // no-warning
+}
+
+void createFoo6() {
+  MyClass *obj;
+  obj = 0;  
+  
+  unsigned long long ull = [obj unsignedLongLongM];
+}
+
+void handleNilPruneLoop(MyClass *obj) {
+  if (!!obj)
+    return;
+  
+  // Test if [obj intM] evaluates to 0, thus pruning the entire loop.
+  for (int i = 0; i < [obj intM]; i++) {
+    long long j = [obj longlongM];
+  }
+  
+  long long j = [obj longlongM];
+}
+
+int handleVoidInComma() {
+  MyClass *obj = 0;
+  return [obj voidM], 0;
+}
+
+int marker(void) { // control reaches end of non-void function
+}
+
+// CHECK-darwin8: warning: The receiver of message 'longlongM' is nil and returns a value of type 'long long' that will be garbage
+// CHECK-darwin8: warning: The receiver of message 'unsignedLongLongM' is nil and returns a value of type 'unsigned long long' that will be garbage
+// CHECK-darwin8: warning: The receiver of message 'doubleM' is nil and returns a value of type 'double' that will be garbage
+// CHECK-darwin8: warning: The receiver of message 'longlongM' is nil and returns a value of type 'long long' that will be garbage
+// CHECK-darwin8: warning: The receiver of message 'longDoubleM' is nil and returns a value of type 'long double' that will be garbage
+
+// CHECK-darwin9-NOT: warning: The receiver of message 'longlongM' is nil and returns a value of type 'long long' that will be garbage
+// CHECK-darwin9-NOT: warning: The receiver of message 'unsignedLongLongM' is nil and returns a value of type 'unsigned long long' that will be garbage
+// CHECK-darwin9-NOT: warning: The receiver of message 'doubleM' is nil and returns a value of type 'double' that will be garbage
+// CHECK-darwin9-NOT: warning: The receiver of message 'longlongM' is nil and returns a value of type 'long long' that will be garbage
+// CHECK-darwin9-NOT: warning: The receiver of message 'longDoubleM' is nil and returns a value of type 'long double' that will be garbage
+// CHECK-darwin9: 1 warning generated
+