More type checking for blocks. Still incomplete (will hopefully finish up this weekend).
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55862 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/block-misc.c b/test/Sema/block-misc.c
new file mode 100644
index 0000000..92632f3
--- /dev/null
+++ b/test/Sema/block-misc.c
@@ -0,0 +1,50 @@
+// RUN: clang -fsyntax-only -verify %s
+void donotwarn();
+
+int (^IFP) ();
+int (^II) (int);
+int test1() {
+ int (^PFR) (int) = 0; // OK
+ PFR = II; // OK
+
+ if (PFR == II) // OK
+ donotwarn();
+
+ if (PFR == IFP) // expected-error {{comparison of distinct block types}}
+ donotwarn();
+
+ if (PFR == (int (^) (int))IFP) // OK
+ donotwarn();
+
+ if (PFR == 0) // OK
+ donotwarn();
+
+ if (PFR) // OK
+ donotwarn();
+
+ if (!PFR) // OK
+ donotwarn();
+
+ return PFR != IFP; // expected-error {{comparison of distinct block types}}
+}
+
+int test2(double (^S)()) {
+ double (^I)(int) = (void*) S;
+ (void*)I = (void *)S; // expected-error {{expression is not assignable}}
+
+ void *pv = I;
+
+ pv = S;
+
+ I(1);
+
+ return (void*)I == (void *)S;
+}
+
+int^ x; // expected-error {{block pointer to non-function type is invalid}}
+int^^ x1; // expected-error {{block pointer to non-function type is invalid}}
+
+int test3() {
+ char *^ y; // expected-error {{block pointer to non-function type is invalid}}
+}
+