| 1 | // RUN: %clang_cc1 -fsyntax-only -Wunused-parameter -Wused-but-marked-unused -Wunused -verify %s |
|---|
| 2 | |
|---|
| 3 | void f1(void) { |
|---|
| 4 | int x, y, z; |
|---|
| 5 | #pragma unused(x) |
|---|
| 6 | #pragma unused(y, z) |
|---|
| 7 | |
|---|
| 8 | int w; // expected-warning {{unused}} |
|---|
| 9 | #pragma unused w // expected-warning{{missing '(' after '#pragma unused' - ignoring}} |
|---|
| 10 | } |
|---|
| 11 | |
|---|
| 12 | void f2(void) { |
|---|
| 13 | int x, y; // expected-warning {{unused}} expected-warning {{unused}} |
|---|
| 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) { |
|---|
| 19 | #pragma unused(x) // expected-warning{{undeclared variable 'x' used as an argument for '#pragma unused'}} |
|---|
| 20 | } |
|---|
| 21 | |
|---|
| 22 | void f4(void) { |
|---|
| 23 | int w; // expected-warning {{unused}} |
|---|
| 24 | #pragma unused((w)) // expected-warning{{expected '#pragma unused' argument to be a variable name}} |
|---|
| 25 | } |
|---|
| 26 | |
|---|
| 27 | void f6(void) { |
|---|
| 28 | int z; // no-warning |
|---|
| 29 | { |
|---|
| 30 | #pragma unused(z) // no-warning |
|---|
| 31 | } |
|---|
| 32 | } |
|---|
| 33 | |
|---|
| 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 | |
|---|
| 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 | } |
|---|
| 62 | |
|---|
| 63 | // rdar://8793832 |
|---|
| 64 | static int glob_var = 0; |
|---|
| 65 | #pragma unused(glob_var) |
|---|
| 66 | |
|---|