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From: sayle@gcc.gnu.org
To: nobody@gcc.gnu.org
Cc: gcc-prs@gcc.gnu.org,
Subject: c/10175
Date: Thu, 17 Apr 2003 01:26:00 -0000 [thread overview]
Message-ID: <20030417012601.31943.qmail@sources.redhat.com> (raw)
The following reply was made to PR c/10175; it has been noted by GNATS.
From: sayle@gcc.gnu.org
To: gcc-gnats@gcc.gnu.org
Cc:
Subject: c/10175
Date: 17 Apr 2003 01:22:51 -0000
CVSROOT: /cvs/gcc
Module name: gcc
Changes by: sayle@gcc.gnu.org 2003-04-17 01:22:51
Modified files:
gcc : ChangeLog c-semantics.c Makefile.in
gcc/testsuite : ChangeLog
Added files:
gcc/testsuite/gcc.dg: Wunreachable-5.c
gcc/testsuite/gcc.c-torture/execute: medce-1.c medce-2.c
Log message:
2003-04-16 Roger Sayle <roger@eyesopen.com>
* c-semantics.c (find_reachable_label): New function to find a
potentially reachable label in an expression.
(expand_unreachable_if_stmt): Similar to expand_if_stmt but
assumes the start of the IF_STMT is unreachable (dead) code.
(expand_unreachable_stmt): Similar to expand_stmt but assumes
the start of the statement list is unreachable (dead) code.
(genrtl_if_stmt): If the controlling expression of the IF
is constant, use expand_unreachable_stmt for the THEN or ELSE
clause as appropriate.
(genrtl_switch_stmt): Use expand_unreachable_stmt to expand
the body of a SWITCH statement.
(expand_stmt): The code immediately following a "return",
"break", "continue" or "goto" is unreachable.
* Makefile.in (c-semantics.o): Depend upon tree-inline.h.
* gcc.dg/Wunreachable-5.c: New test case for PR c/10175.
* gcc.c-torture/execute/medce-1.c: New test case.
* gcc.c-torture/execute/medce-2.c: New test case.
Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=1.17475&r2=1.17476
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/c-semantics.c.diff?cvsroot=gcc&r1=1.53&r2=1.54
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/Makefile.in.diff?cvsroot=gcc&r1=1.1034&r2=1.1035
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.2598&r2=1.2599
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/Wunreachable-5.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/medce-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/medce-2.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
next reply other threads:[~2003-04-17 1:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-17 1:26 sayle [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-04-04 1:26 c/10175 jason
2003-04-04 1:26 c/10175 jason
2003-04-04 1:26 c/10175 jason
2003-04-04 1:26 c/10175 jason
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