vendor/clang/clang-release_39-r276489

1 files changed, 53 insertions, 0 deletions

diff --git a/test/SemaOpenCL/invalid-block.cl b/test/SemaOpenCL/invalid-block.cl
new file mode 100644
index 000000000000..6721d0ea234a
--- /dev/null
+++ b/test/SemaOpenCL/invalid-block.cl
@@ -0,0 +1,53 @@
+// RUN: %clang_cc1 -verify -fblocks -cl-std=CL2.0 %s
+
+// OpenCL v2.0 s6.12.5
+void f0(int (^const bl)());
+// All blocks declarations must be const qualified and initialized.
+void f1() {
+  int (^bl1)() = ^() {return 1;};
+  int (^const bl2)() = ^(){return 1;};
+  f0(bl1);
+  f0(bl2);
+  bl1 = bl2; // expected-error{{invalid operands to binary expression ('int (^const)()' and 'int (^const)()')}}
+  int (^const bl3)(); // expected-error{{invalid block variable declaration - must be initialized}}
+}
+
+// A block with extern storage class is not allowed.
+extern int (^bl)() = ^(){return 1;}; // expected-error{{invalid block variable declaration - using 'extern' storage class is disallowed}}
+void f2() {
+  extern int (^bl)() = ^(){return 1;}; // expected-error{{invalid block variable declaration - using 'extern' storage class is disallowed}}
+}
+
+// A block cannot be the return value of a function.
+typedef int (^bl_t)(void);
+bl_t f3(bl_t bl); // expected-error{{declaring function return value of type 'bl_t' (aka 'int (^const)(void)') is not allowed}}
+
+struct bl_s {
+  int (^bl)(void); // expected-error {{the 'int (^const)(void)' type cannot be used to declare a structure or union field}}
+};
+
+void f4() {
+  __block int a = 10; // expected-error {{the __block storage type is not permitted}}
+}
+
+// A block with variadic argument is not allowed.
+int (^bl)(int, ...) = ^int(int I, ...) { // expected-error {{invalid block prototype, variadic arguments are not allowed in OpenCL}}
+  return 0;
+};
+
+// A block can't be used to declare an array
+typedef int (^bl1_t)(int);
+void f5(int i) {
+  bl1_t bl1 = ^(int i) {return 1;};
+  bl1_t bl2 = ^(int i) {return 2;};
+  bl1_t arr[] = {bl1, bl2}; // expected-error {{array of 'bl1_t' (aka 'int (^const)(int)') type is invalid in OpenCL}}
+  int tmp = i ? bl1(i)      // expected-error {{block type cannot be used as expression in ternary expression in OpenCL}}
+              : bl2(i);     // expected-error {{block type cannot be used as expression in ternary expression in OpenCL}}
+}
+// A block pointer type and all pointer operations are disallowed
+void f6(bl1_t * bl_ptr) { // expected-error{{pointer to type '__generic bl1_t' (aka 'int (^const __generic)(int)') is invalid in OpenCL}}
+  bl1_t bl = ^(int i) {return 1;};
+  bl1_t *p; // expected-error {{pointer to type '__generic bl1_t' (aka 'int (^const __generic)(int)') is invalid in OpenCL}}
+  *bl;  // expected-error {{invalid argument type 'bl1_t' (aka 'int (^const)(int)') to unary expression}}
+  &bl; // expected-error {{invalid argument type 'bl1_t' (aka 'int (^const)(int)') to unary expression}}
+}