teak-llvm/clang/test/SemaOpenCL/queue_t_overload.cl
Anastasia Stulova 5b6dda33d1 [Sema][OpenCL] Make address space conversions a bit stricter.
The semantics for converting nested pointers between address
spaces are not very well defined. Some conversions which do not
really carry any meaning only produce warnings, and in some cases
warnings hide invalid conversions, such as 'global int*' to
'local float*'!

This patch changes the logic in checkPointerTypesForAssignment
and checkAddressSpaceCast to fail properly on implicit conversions
that should definitely not be permitted. We also dig deeper into the
pointer types and warn on explicit conversions where the address
space in a nested pointer changes, regardless of whether the address
space is compatible with the corresponding pointer nesting level
on the destination type.

Fixes PR39674!

Patch by ebevhan (Bevin Hansson)!

Differential Revision: https://reviews.llvm.org/D58236

llvm-svn: 360258
2019-05-08 14:23:49 +00:00

13 lines
787 B
Common Lisp

// RUN: %clang_cc1 %s -cl-std=CL2.0 -verify -pedantic -fsyntax-only
void __attribute__((overloadable)) foo(queue_t, __local char *); // expected-note {{candidate function not viable: no known conversion from 'int' to 'queue_t' for 1st argument}} // expected-note {{candidate function}}
void __attribute__((overloadable)) foo(queue_t, __local float *); // expected-note {{candidate function not viable: no known conversion from 'int' to 'queue_t' for 1st argument}} // expected-note {{candidate function}}
void kernel ker(__local char *src1, __local float *src2, __global int *src3) {
queue_t q;
foo(q, src1);
foo(0, src2);
foo(q, src3); // expected-error {{no matching function for call to 'foo'}}
foo(1, src3); // expected-error {{no matching function for call to 'foo'}}
}