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| author | Jason Merrill <jason@redhat.com> | 2004-08-07 12:11:10 -0400 |
|---|---|---|
| committer | Jason Merrill <jason@gcc.gnu.org> | 2004-08-07 12:11:10 -0400 |
| commit | 5201931ea147af4f55fe47ed879fbef5b3461ef0 (patch) | |
| tree | ed52c7e668a41a71abd14d2bc80216a67ea6d0f5 /gcc/c-common.c | |
| parent | 8844a2f541582d58075af46362d57a1f75fc6eff (diff) | |
| download | gcc-5201931ea147af4f55fe47ed879fbef5b3461ef0.zip gcc-5201931ea147af4f55fe47ed879fbef5b3461ef0.tar.gz gcc-5201931ea147af4f55fe47ed879fbef5b3461ef0.tar.bz2 | |
gimplify.c (gimplify_call_expr): Make return in memory explicit.
* gimplify.c (gimplify_call_expr): Make return in memory explicit.
(gimplify_modify_expr_rhs): Likewise.
* c-common.c (c_warn_unused_result): Check TREE_USED before
warning about a CALL_EXPR with an unused value.
From-SVN: r85671
Diffstat (limited to 'gcc/c-common.c')
| -rw-r--r-- | gcc/c-common.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/gcc/c-common.c b/gcc/c-common.c index c3dc4ea..868088f 100644 --- a/gcc/c-common.c +++ b/gcc/c-common.c @@ -5378,6 +5378,9 @@ c_warn_unused_result (tree *top_p) break; case CALL_EXPR: + if (TREE_USED (t)) + break; + /* This is a naked call, as opposed to a CALL_EXPR nested inside a MODIFY_EXPR. All calls whose value is ignored should be represented like this. Look for the attribute. */ |