llvm-project/clang/test/Sema/vector-ops.c
Tanya Lattner 49b3841398 The comparison of two vectors should return a signed result. hasIntegerRepresentation() used to always return false for vectors, but since it was changed, it also
changed the return type of a compare of two unsigned vectors to be unsigned. This patch removes the check for hasIntegerRepresentation since its not needed and returns the appropriate signed type.
I added a new test case and updated exisiting test cases that assumed an unsigned result.

llvm-svn: 142250
2011-10-17 21:00:38 +00:00

30 lines
1.1 KiB
C

// RUN: %clang_cc1 %s -verify -fsyntax-only -Wvector-conversions
typedef unsigned int v2u __attribute__ ((vector_size (8)));
typedef int v2s __attribute__ ((vector_size (8)));
typedef float v2f __attribute__ ((vector_size(8)));
void test1(v2u v2ua, v2s v2sa, v2f v2fa) {
// Bitwise binary operators
(void)(v2ua & v2ua);
(void)(v2fa & v2fa); // expected-error{{invalid operands to binary expression}}
// Unary operators
(void)(~v2ua);
(void)(~v2fa); // expected-error{{invalid argument type 'v2f' to unary}}
// Comparison operators
v2ua = (v2ua==v2sa); // expected-warning{{incompatible vector types assigning to 'v2u' from 'int __attribute__((ext_vector_type(2)))'}}
v2sa = (v2ua==v2sa);
// Arrays
int array1[v2ua]; // expected-error{{size of array has non-integer type 'v2u'}}
int array2[17];
// FIXME: error message below needs type!
(void)(array2[v2ua]); // expected-error{{array subscript is not an integer}}
v2u *v2u_ptr = 0;
v2s *v2s_ptr;
v2s_ptr = v2u_ptr; // expected-warning{{converts between pointers to integer types with different sign}}
}