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[Bug c/50179] [4.6/4.7 Regression] wrong "set but not used" warning
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 26 Aug 2011 14:37:25 +0000
- Subject: [Bug c/50179] [4.6/4.7 Regression] wrong "set but not used" warning
- Auto-submitted: auto-generated
- References: <bug-50179-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50179
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-08-26 14:37:25 UTC ---
Author: jakub
Date: Fri Aug 26 14:37:22 2011
New Revision: 178110
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=178110
Log:
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.
Added:
trunk/gcc/testsuite/c-c++-common/Wunused-var-14.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/c-typeck.c
trunk/gcc/testsuite/ChangeLog