ext_vector_comparisons.c
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// RUN: %clang_cc1 -fsyntax-only -verify -Wno-unreachable-code %s
typedef __attribute__(( ext_vector_type(4) )) int int4;
static int4 test1() {
int4 vec, rv;
// comparisons to self...
return vec == vec; // expected-warning{{self-comparison always evaluates to true}}
return vec != vec; // expected-warning{{self-comparison always evaluates to false}}
return vec < vec; // expected-warning{{self-comparison always evaluates to false}}
return vec <= vec; // expected-warning{{self-comparison always evaluates to true}}
return vec > vec; // expected-warning{{self-comparison always evaluates to false}}
return vec >= vec; // expected-warning{{self-comparison always evaluates to true}}
}
typedef __attribute__(( ext_vector_type(4) )) float float4;
static int4 test2() {
float4 vec, rv;
// comparisons to self. no warning, they're floats
return vec == vec; // no-warning
return vec != vec; // no-warning
return vec < vec; // no-warning
return vec <= vec; // no-warning
return vec > vec; // no-warning
return vec >= vec; // no-warning
}
static int4 test3() {
int4 i0, i1;
return i0 > i1 ? i0 : i1; // no-error
return i0 ? i0 : i1; // no-error
}
static float4 test4() {
float4 f0, f1;
// This would actually generate implicit casting warning
// under Weverything flag but we don't really care here
return f0 > f1 ? f0 : f1; // no-error
return f0 ? f0 : f1; // expected-error {{used type 'float4' (vector of 4 'float' values) where floating point type is not allowed}}
}