Argyrios Kyrtzidis | 2a5c45b | 2011-01-27 18:16:48 +0000 | [diff] [blame] | 1 | // RUN: %clang_cc1 -fsyntax-only -Wunused-parameter -Wused-but-marked-unused -Wunused -verify %s |
Ted Kremenek | 4726d03 | 2009-03-23 22:28:25 +0000 | [diff] [blame] | 2 | |
| 3 | void f1(void) { |
| 4 | int x, y, z; |
| 5 | #pragma unused(x) |
| 6 | #pragma unused(y, z) |
| 7 | |
Argyrios Kyrtzidis | 2a5c45b | 2011-01-27 18:16:48 +0000 | [diff] [blame] | 8 | int w; // expected-warning {{unused}} |
Ted Kremenek | 4726d03 | 2009-03-23 22:28:25 +0000 | [diff] [blame] | 9 | #pragma unused w // expected-warning{{missing '(' after '#pragma unused' - ignoring}} |
| 10 | } |
| 11 | |
| 12 | void f2(void) { |
Argyrios Kyrtzidis | 2a5c45b | 2011-01-27 18:16:48 +0000 | [diff] [blame] | 13 | int x, y; // expected-warning {{unused}} expected-warning {{unused}} |
Ted Kremenek | 4726d03 | 2009-03-23 22:28:25 +0000 | [diff] [blame] | 14 | #pragma unused(x,) // expected-warning{{expected '#pragma unused' argument to be a variable name}} |
| 15 | #pragma unused() // expected-warning{{expected '#pragma unused' argument to be a variable name}} |
| 16 | } |
| 17 | |
| 18 | void f3(void) { |
Ted Kremenek | 7a02a37 | 2009-08-03 23:24:57 +0000 | [diff] [blame] | 19 | #pragma unused(x) // expected-warning{{undeclared variable 'x' used as an argument for '#pragma unused'}} |
Ted Kremenek | 4726d03 | 2009-03-23 22:28:25 +0000 | [diff] [blame] | 20 | } |
| 21 | |
| 22 | void f4(void) { |
Argyrios Kyrtzidis | 2a5c45b | 2011-01-27 18:16:48 +0000 | [diff] [blame] | 23 | int w; // expected-warning {{unused}} |
Ted Kremenek | 4726d03 | 2009-03-23 22:28:25 +0000 | [diff] [blame] | 24 | #pragma unused((w)) // expected-warning{{expected '#pragma unused' argument to be a variable name}} |
| 25 | } |
| 26 | |
Ted Kremenek | 4726d03 | 2009-03-23 22:28:25 +0000 | [diff] [blame] | 27 | void f6(void) { |
| 28 | int z; // no-warning |
| 29 | { |
| 30 | #pragma unused(z) // no-warning |
| 31 | } |
| 32 | } |
| 33 | |
Ted Kremenek | 7a02a37 | 2009-08-03 23:24:57 +0000 | [diff] [blame] | 34 | void f7() { |
| 35 | int y; |
| 36 | #pragma unused(undeclared, undefined, y) // expected-warning{{undeclared variable 'undeclared' used as an argument for '#pragma unused'}} expected-warning{{undeclared variable 'undefined' used as an argument for '#pragma unused'}} |
| 37 | } |
| 38 | |
Anders Carlsson | 2127ecc | 2010-10-22 23:37:08 +0000 | [diff] [blame] | 39 | int f8(int x) { // expected-warning{{unused parameter 'x'}} |
| 40 | return 0; |
| 41 | } |
| 42 | |
| 43 | int f9(int x) { |
| 44 | return x; |
| 45 | } |
| 46 | |
| 47 | int f10(int x) { |
| 48 | #pragma unused(x) |
| 49 | return 0; |
| 50 | } |
| 51 | |
| 52 | int f11(int x) { |
| 53 | #pragma unused(x) |
| 54 | return x; // expected-warning{{'x' was marked unused but was used}} |
| 55 | } |
| 56 | |
| 57 | int f12(int x) { |
| 58 | int y = x; |
| 59 | #pragma unused(x) // expected-warning{{'x' was marked unused but was used}} |
| 60 | return y; |
| 61 | } |
Argyrios Kyrtzidis | 2a5c45b | 2011-01-27 18:16:48 +0000 | [diff] [blame] | 62 | |
| 63 | // rdar://8793832 |
| 64 | static int glob_var = 0; |
| 65 | #pragma unused(glob_var) |