teak-llvm/clang/test/Sema/vector-ops.c
Simon Dardis 7cd5876e60 [Sema] Support implicit scalar to vector conversions
This patch teaches clang to perform implicit scalar to vector conversions
when one of the operands of a binary vector expression is a scalar which
can be converted to the element type of the vector without truncation
following GCC's implementation.

If the (constant) scalar is can be casted safely, it is implicitly casted to the
vector elements type and splatted to produce a vector of the same type.

Contributions from: Petar Jovanovic

Reviewers: bruno, vkalintiris

Differential Revision: https://reviews.llvm.org/D25866

llvm-svn: 302935
2017-05-12 19:11:06 +00:00

136 lines
13 KiB
C

// RUN: %clang_cc1 %s -verify -fsyntax-only -Wvector-conversion -triple x86_64-apple-darwin10
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' (vector of 2 'float' values) to unary}}
// Comparison operators
v2ua = (v2ua==v2sa); // expected-warning{{incompatible vector types assigning to 'v2u' (vector of 2 'unsigned int' values) from '__attribute__((__vector_size__(2 * sizeof(int)))) int' (vector of 2 'int' values}}
v2sa = (v2ua==v2sa);
// Arrays
int array1[v2ua]; // expected-error{{size of array has non-integer type 'v2u' (vector of 2 'unsigned int' values}}
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}}
}
void testLogicalVecVec(v2u v2ua, v2s v2sa, v2f v2fa) {
// Logical operators
v2ua = v2ua && v2ua; // expected-error {{logical expression with vector types 'v2u' (vector of 2 'unsigned int' values) and 'v2u'}}
v2ua = v2ua || v2ua; // expected-error {{logical expression with vector types 'v2u' (vector of 2 'unsigned int' values) and 'v2u'}}
v2ua = v2sa && v2ua; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2u' (vector of 2 'unsigned int' values)}}
v2ua = v2sa || v2ua; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2u' (vector of 2 'unsigned int' values)}}
v2ua = v2ua && v2fa; // expected-error {{logical expression with vector types 'v2u' (vector of 2 'unsigned int' values) and 'v2f' (vector of 2 'float' values)}}
v2ua = v2ua || v2fa; // expected-error {{logical expression with vector types 'v2u' (vector of 2 'unsigned int' values) and 'v2f' (vector of 2 'float' values)}}
v2ua = v2sa && v2fa; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2f' (vector of 2 'float' values)}}
v2ua = v2sa || v2fa; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2f' (vector of 2 'float' values)}}
v2sa = v2sa && v2sa; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2s'}}
v2sa = v2sa || v2sa; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2s'}}
v2sa = v2ua && v2ua; // expected-error {{logical expression with vector types 'v2u' (vector of 2 'unsigned int' values) and 'v2u'}}
v2sa = v2ua || v2ua; // expected-error {{logical expression with vector types 'v2u' (vector of 2 'unsigned int' values) and 'v2u'}}
v2sa = v2sa && v2ua; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2u' (vector of 2 'unsigned int' values)}}
v2sa = v2sa || v2ua; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2u' (vector of 2 'unsigned int' values)}}
v2sa = v2sa && v2fa; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2f' (vector of 2 'float' values)}}
v2sa = v2sa || v2fa; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2f' (vector of 2 'float' values)}}
v2sa = v2ua && v2fa; // expected-error {{logical expression with vector types 'v2u' (vector of 2 'unsigned int' values) and 'v2f' (vector of 2 'float' values)}}
v2sa = v2ua || v2fa; // expected-error {{logical expression with vector types 'v2u' (vector of 2 'unsigned int' values) and 'v2f' (vector of 2 'float' values)}}
v2fa = v2fa && v2fa; // expected-error {{logical expression with vector types 'v2f' (vector of 2 'float' values) and 'v2f'}}
v2fa = v2fa || v2fa; // expected-error {{logical expression with vector types 'v2f' (vector of 2 'float' values) and 'v2f'}}
v2fa = v2sa && v2fa; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2f' (vector of 2 'float' values)}}
v2fa = v2sa || v2fa; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2f' (vector of 2 'float' values)}}
v2fa = v2ua && v2fa; // expected-error {{logical expression with vector types 'v2u' (vector of 2 'unsigned int' values) and 'v2f' (vector of 2 'float' values)}}
v2fa = v2ua || v2fa; // expected-error {{logical expression with vector types 'v2u' (vector of 2 'unsigned int' values) and 'v2f' (vector of 2 'float' values)}}
v2fa = v2ua && v2ua; // expected-error {{logical expression with vector types 'v2u' (vector of 2 'unsigned int' values) and 'v2u'}}
v2fa = v2ua || v2ua; // expected-error {{logical expression with vector types 'v2u' (vector of 2 'unsigned int' values) and 'v2u'}}
v2fa = v2sa && v2sa; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2s'}}
v2fa = v2sa || v2sa; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2s'}}
v2fa = v2sa && v2ua; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2u' (vector of 2 'unsigned int' values)}}
v2fa = v2sa || v2ua; // expected-error {{logical expression with vector types 'v2s' (vector of 2 'int' values) and 'v2u' (vector of 2 'unsigned int' values)}}
}
void testLogicalVecScalar(v2u v2ua, v2s v2sa, v2f v2fa) {
unsigned u1;
v2ua = v2ua && u1; // expected-error {{logical expression with vector type 'v2u' (vector of 2 'unsigned int' values) and non-vector type 'unsigned int' is only supported in C++}}
v2ua = v2ua || u1; // expected-error {{logical expression with vector type 'v2u' (vector of 2 'unsigned int' values) and non-vector type 'unsigned int' is only supported in C++}}
v2sa = v2sa && u1; // expected-error {{cannot convert between scalar type 'unsigned int' and vector type 'v2s' (vector of 2 'int' values) as implicit conversion would cause truncation}} expected-error {{invalid operands to binary expression ('v2s' (vector of 2 'int' values) and 'unsigned int')}}
v2sa = v2sa || u1; // expected-error {{cannot convert between scalar type 'unsigned int' and vector type 'v2s' (vector of 2 'int' values) as implicit conversion would cause truncation}} expected-error {{invalid operands to binary expression ('v2s' (vector of 2 'int' values) and 'unsigned int')}}
v2ua = v2sa && u1; // expected-error {{cannot convert between scalar type 'unsigned int' and vector type 'v2s' (vector of 2 'int' values) as implicit conversion would cause truncation}} expected-error {{invalid operands to binary expression ('v2s' (vector of 2 'int' values) and 'unsigned int')}}
v2ua = v2sa || u1; // expected-error {{cannot convert between scalar type 'unsigned int' and vector type 'v2s' (vector of 2 'int' values) as implicit conversion would cause truncation}} expected-error {{invalid operands to binary expression ('v2s' (vector of 2 'int' values) and 'unsigned int')}}
v2sa = v2ua && u1; // expected-error {{logical expression with vector type 'v2u' (vector of 2 'unsigned int' values) and non-vector type 'unsigned int' is only supported in C++}}
v2sa = v2ua || u1; // expected-error {{logical expression with vector type 'v2u' (vector of 2 'unsigned int' values) and non-vector type 'unsigned int' is only supported in C++}}
v2ua = v2fa && u1; // expected-error {{cannot convert between scalar type 'unsigned int' and vector type 'v2f' (vector of 2 'float' values) as implicit conversion would cause truncation}} expected-error {{invalid operands to binary expression ('v2f' (vector of 2 'float' values) and 'unsigned int')}}
v2ua = v2fa || u1; // expected-error {{cannot convert between scalar type 'unsigned int' and vector type 'v2f' (vector of 2 'float' values) as implicit conversion would cause truncation}} expected-error {{invalid operands to binary expression ('v2f' (vector of 2 'float' values) and 'unsigned int')}}
v2sa = v2fa && u1; // expected-error {{cannot convert between scalar type 'unsigned int' and vector type 'v2f' (vector of 2 'float' values) as implicit conversion would cause truncation}} expected-error {{invalid operands to binary expression ('v2f' (vector of 2 'float' values) and 'unsigned int')}}
v2sa = v2fa || u1; // expected-error {{cannot convert between scalar type 'unsigned int' and vector type 'v2f' (vector of 2 'float' values) as implicit conversion would cause truncation}} expected-error {{invalid operands to binary expression ('v2f' (vector of 2 'float' values) and 'unsigned int')}}
int s1;
v2ua = v2ua && s1; // expected-error {{logical expression with vector type 'v2u' (vector of 2 'unsigned int' values) and non-vector type 'int' is only supported in C++}}
v2ua = v2ua || s1; // expected-error {{logical expression with vector type 'v2u' (vector of 2 'unsigned int' values) and non-vector type 'int' is only supported in C++}}
v2sa = v2sa && s1; // expected-error {{logical expression with vector type 'v2s' (vector of 2 'int' values) and non-vector type 'int' is only supported in C++}}
v2sa = v2sa || s1; // expected-error {{logical expression with vector type 'v2s' (vector of 2 'int' values) and non-vector type 'int' is only supported in C++}}
v2ua = v2sa && s1; // expected-error {{logical expression with vector type 'v2s' (vector of 2 'int' values) and non-vector type 'int' is only supported in C++}}
v2ua = v2sa || s1; // expected-error {{logical expression with vector type 'v2s' (vector of 2 'int' values) and non-vector type 'int' is only supported in C++}}
v2sa = v2ua && s1; // expected-error {{logical expression with vector type 'v2u' (vector of 2 'unsigned int' values) and non-vector type 'int' is only supported in C++}}
v2sa = v2ua || s1; // expected-error {{logical expression with vector type 'v2u' (vector of 2 'unsigned int' values) and non-vector type 'int' is only supported in C++}}
v2ua = v2fa && s1; // expected-error {{cannot convert between scalar type 'int' and vector type 'v2f' (vector of 2 'float' values) as implicit conversion would cause truncation}} expected-error {{invalid operands to binary expression ('v2f' (vector of 2 'float' values) and 'int'}}
v2ua = v2fa || s1; // expected-error {{cannot convert between scalar type 'int' and vector type 'v2f' (vector of 2 'float' values) as implicit conversion would cause truncation}} expected-error {{invalid operands to binary expression ('v2f' (vector of 2 'float' values) and 'int'}}
v2sa = v2fa && s1; // expected-error {{cannot convert between scalar type 'int' and vector type 'v2f' (vector of 2 'float' values) as implicit conversion would cause truncation}} expected-error {{invalid operands to binary expression ('v2f' (vector of 2 'float' values) and 'int'}}
v2sa = v2fa || s1; // expected-error {{cannot convert between scalar type 'int' and vector type 'v2f' (vector of 2 'float' values) as implicit conversion would cause truncation}} expected-error {{invalid operands to binary expression ('v2f' (vector of 2 'float' values) and 'int'}}
float f1;
v2ua = v2ua && f1; // expected-error {{logical expression with vector type 'v2u' (vector of 2 'unsigned int' values) and non-vector type 'float' is only supported in C++}}
v2ua = v2ua || f1; // expected-error {{logical expression with vector type 'v2u' (vector of 2 'unsigned int' values) and non-vector type 'float' is only supported in C++}}
v2sa = v2sa && f1; // expected-error {{logical expression with vector type 'v2s' (vector of 2 'int' values) and non-vector type 'float' is only supported in C++}}
v2sa = v2sa || f1; // expected-error {{logical expression with vector type 'v2s' (vector of 2 'int' values) and non-vector type 'float' is only supported in C++}}
v2ua = v2sa && f1; // expected-error {{logical expression with vector type 'v2s' (vector of 2 'int' values) and non-vector type 'float' is only supported in C++}}
v2ua = v2sa || f1; // expected-error {{logical expression with vector type 'v2s' (vector of 2 'int' values) and non-vector type 'float' is only supported in C++}}
v2sa = v2ua && f1; // expected-error {{logical expression with vector type 'v2u' (vector of 2 'unsigned int' values) and non-vector type 'float' is only supported in C++}}
v2sa = v2ua || f1; // expected-error {{logical expression with vector type 'v2u' (vector of 2 'unsigned int' values) and non-vector type 'float' is only supported in C++}}
v2ua = v2fa && f1; // expected-error {{logical expression with vector type 'v2f' (vector of 2 'float' values) and non-vector type 'float' is only supported in C++}}
v2ua = v2fa || f1; // expected-error {{logical expression with vector type 'v2f' (vector of 2 'float' values) and non-vector type 'float' is only supported in C++}}
v2sa = v2fa && f1; // expected-error {{logical expression with vector type 'v2f' (vector of 2 'float' values) and non-vector type 'float' is only supported in C++}}
v2sa = v2fa || f1; // expected-error {{logical expression with vector type 'v2f' (vector of 2 'float' values) and non-vector type 'float' is only supported in C++}}
}