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[Bug middle-end/13325] [tree-ssa] Weird warning on memcpy(d, s, 0)
- From: "cvs-commit at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 4 Feb 2004 02:24:36 -0000
- Subject: [Bug middle-end/13325] [tree-ssa] Weird warning on memcpy(d, s, 0)
- References: <20031205222859.13325.falk@debian.org>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-02-04 02:24 -------
Subject: Bug 13325
CVSROOT: /cvs/gcc
Module name: gcc
Branch: tree-ssa-20020619-branch
Changes by: rth@gcc.gnu.org 2004-02-04 02:24:28
Modified files:
gcc : ChangeLog.tree-ssa builtins.c c-simplify.c
c-typeck.c stmt.c tree.h
gcc/cp : ChangeLog.tree-ssa call.c cvt.c init.c typeck.c
Added files:
gcc/testsuite/g++.dg/warn: noeffect5.C
gcc/testsuite/gcc.dg: 20040202-1.c
Log message:
PR middle-end/13325
* builtins.c (fold_builtin_1): Rename from fold_builtin.
(fold_builtin): New.
* c-simplify.c (gimplify_expr_stmt): Check TREE_NO_WARNING.
* stmt.c (expand_expr_stmt_value): Likewise.
* tree.h (struct tree_common): Add nowarning_flag.
(TREE_NO_WARNING): New.
(TREE_NO_UNUSED_WARNING): Remove.
* c-typeck.c (build_unary_op): Use TREE_NO_WARNING instead.
* stmt.c (warn_if_unused_value): Likewise.
cp/
* call.c, cvt.c, init.c, typeck.c: Use TREE_NO_WARNING instead
of TREE_NO_UNUSED_WARNING.
* cvt.c (convert_to_void): Also use it for "has no effect" warning.
testsuite/
* g++.dg/warn/noeffect5.C: New.
* gcc.dg/20040202-1.c: New.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.tree-ssa.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.1146&r2=1.1.2.1147
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/builtins.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.152.2.47&r2=1.152.2.48
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-simplify.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.4.90&r2=1.1.4.91
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-typeck.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.196.2.37&r2=1.196.2.38
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/stmt.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.267.2.45&r2=1.267.2.46
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.h.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.342.2.165&r2=1.342.2.166
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.tree-ssa.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.1.2.67&r2=1.1.2.68
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/call.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.320.2.41&r2=1.320.2.42
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/cvt.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.118.2.20&r2=1.118.2.21
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/init.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.281.2.35&r2=1.281.2.36
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/typeck.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=1.408.2.39&r2=1.408.2.40
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/warn/noeffect5.C.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=NONE&r2=1.1.2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/20040202-1.c.diff?cvsroot=gcc&only_with_tag=tree-ssa-20020619-branch&r1=NONE&r2=1.1.2.1
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13325