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| author | Jakub Jelinek <jakub@redhat.com> | 2011-08-26 16:37:22 +0200 |
|---|---|---|
| committer | Jakub Jelinek <jakub@gcc.gnu.org> | 2011-08-26 16:37:22 +0200 |
| commit | f1a89dd00ccfb6e77ecec7203f40653b53a93cff (patch) | |
| tree | 413636b1ba12d92675262e9fef4b7c81c3aab4d0 /gcc/testsuite/c-c++-common/Wunused-var-14.c | |
| parent | fd3e0a33c7df8b478e10c3d4ac6af11e77aae425 (diff) | |
| download | gcc-f1a89dd00ccfb6e77ecec7203f40653b53a93cff.zip gcc-f1a89dd00ccfb6e77ecec7203f40653b53a93cff.tar.gz gcc-f1a89dd00ccfb6e77ecec7203f40653b53a93cff.tar.bz2 | |
re PR c/50179 (wrong "set but not used" warning)
PR c/50179
* c-typeck.c (c_process_expr_stmt): Skip over nops and
call mark_exp_read even if exprv is ADDR_EXPR.
* c-c++-common/Wunused-var-14.c: New test.
From-SVN: r178110
Diffstat (limited to 'gcc/testsuite/c-c++-common/Wunused-var-14.c')
| -rw-r--r-- | gcc/testsuite/c-c++-common/Wunused-var-14.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/gcc/testsuite/c-c++-common/Wunused-var-14.c b/gcc/testsuite/c-c++-common/Wunused-var-14.c new file mode 100644 index 0000000..389feba --- /dev/null +++ b/gcc/testsuite/c-c++-common/Wunused-var-14.c @@ -0,0 +1,13 @@ +/* PR c/50179 */ +/* { dg-options "-Wunused" } */ +/* { dg-do compile } */ + +void bar (int, ...); + +char * +foo (void) +{ + bar (1, (__extension__ ({ static char b[2]; b[0] = 1; b; }))); + bar (1, ({ static char c[2]; c[0] = 1; c; })); + return ({ static char d[2]; d[0] = 1; d; }); +} |