| Douglas Gregor | 5d8e67e | 2010-06-08 19:50:34 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -fsyntax-only -verify -Wno-unreachable-code %s |
| 2 | |
| 3 | typedef __attribute__(( ext_vector_type(4) )) int int4; |
| 4 | |
| 5 | static int4 test1() { |
| 6 | int4 vec, rv; |
| 7 | |
| 8 | // comparisons to self... |
| 9 | return vec == vec; // expected-warning{{self-comparison always evaluates to a constant}} |
| 10 | return vec != vec; // expected-warning{{self-comparison always evaluates to a constant}} |
| 11 | return vec < vec; // expected-warning{{self-comparison always evaluates to a constant}} |
| 12 | return vec <= vec; // expected-warning{{self-comparison always evaluates to a constant}} |
| 13 | return vec > vec; // expected-warning{{self-comparison always evaluates to a constant}} |
| 14 | return vec >= vec; // expected-warning{{self-comparison always evaluates to a constant}} |
| 15 | } |
| 16 | |
| 17 | |
| 18 | typedef __attribute__(( ext_vector_type(4) )) float float4; |
| 19 | |
| 20 | static int4 test2() { |
| 21 | float4 vec, rv; |
| 22 | |
| 23 | // comparisons to self. no warning, they're floats |
| 24 | return vec == vec; // no-warning |
| 25 | return vec != vec; // no-warning |
| 26 | return vec < vec; // no-warning |
| 27 | return vec <= vec; // no-warning |
| 28 | return vec > vec; // no-warning |
| 29 | return vec >= vec; // no-warning |
| 30 | } |