c/10175

c/10175

[jason]

The following reply was made to PR c/10175; it has been noted by GNATS.

From: jason@gcc.gnu.org
To: gcc-gnats@gcc.gnu.org
Cc:  
Subject: c/10175
Date: 4 Apr 2003 01:21:46 -0000

 CVSROOT:	/cvs/gcc
 Module name:	gcc
 Branch: 	gcc-3_3-branch
 Changes by:	jason@gcc.gnu.org	2003-04-04 01:21:46
 
 Modified files:
 	gcc            : ChangeLog jump.c 
 
 Log message:
 	PR c/10175
 	* jump.c (never_reached_warning): Revert patch of 2002-11-02.
 	Look backwards for a line note.
 
 Patches:
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.401&r2=1.16114.2.402
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/jump.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.214.2.3&r2=1.214.2.4
 

c/10175

[sayle]

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
 

c/10175

[jason]

The following reply was made to PR c/10175; it has been noted by GNATS.

From: jason@gcc.gnu.org
To: gcc-gnats@gcc.gnu.org
Cc:  
Subject: c/10175
Date: 4 Apr 2003 01:25:40 -0000

 CVSROOT:	/cvs/gcc
 Module name:	gcc
 Changes by:	jason@gcc.gnu.org	2003-04-04 01:25:40
 
 Added files:
 	gcc/testsuite/gcc.dg: Wunreachable-3.c 
 
 Log message:
 	PR c/10175
 	* jump.c (never_reached_warning): Revert patch of 2002-11-02.
 	Look backwards for a line note.
 
 Patches:
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/Wunreachable-3.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
 

c/10175

[jason]

The following reply was made to PR c/10175; it has been noted by GNATS.

From: jason@gcc.gnu.org
To: gcc-gnats@gcc.gnu.org
Cc:  
Subject: c/10175
Date: 4 Apr 2003 01:22:48 -0000

 CVSROOT:	/cvs/gcc
 Module name:	gcc
 Branch: 	gcc-3_2-branch
 Changes by:	jason@gcc.gnu.org	2003-04-04 01:22:48
 
 Modified files:
 	gcc            : ChangeLog jump.c 
 
 Log message:
 	PR c/10175
 	* jump.c (never_reached_warning): Look backwards for a line note.
 
 Patches:
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_2-branch&r1=1.13152.2.657.2.297&r2=1.13152.2.657.2.298
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/jump.c.diff?cvsroot=gcc&only_with_tag=gcc-3_2-branch&r1=1.205.2.1.4.4&r2=1.205.2.1.4.5
 

c/10175

[jason]

The following reply was made to PR c/10175; it has been noted by GNATS.

From: jason@gcc.gnu.org
To: gcc-gnats@gcc.gnu.org
Cc:  
Subject: c/10175
Date: 4 Apr 2003 01:21:57 -0000

 CVSROOT:	/cvs/gcc
 Module name:	gcc
 Changes by:	jason@gcc.gnu.org	2003-04-04 01:21:57
 
 Modified files:
 	gcc            : ChangeLog jump.c 
 
 Log message:
 	PR c/10175
 	* jump.c (never_reached_warning): Revert patch of 2002-11-02.
 	Look backwards for a line note.
 
 Patches:
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=1.17319&r2=1.17320
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/jump.c.diff?cvsroot=gcc&r1=1.220&r2=1.221