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* [Bug target/18932] New: [3.4 regression]  -march=pentium4 -O2 causes ICE
@ 2004-12-10 20:21 hjl at lucon dot org
  2004-12-10 20:23 ` [Bug target/18932] " hjl at lucon dot org
                   ` (8 more replies)
  0 siblings, 9 replies; 11+ messages in thread
From: hjl at lucon dot org @ 2004-12-10 20:21 UTC (permalink / raw)
  To: gcc-bugs

This patch

http://gcc.gnu.org/ml/gcc-patches/2004-12/msg00701.html

causes a regression on i386.

-- 
           Summary: [3.4 regression]  -march=pentium4 -O2 causes ICE
           Product: gcc
           Version: 3.4.4
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: target
        AssignedTo: rth at redhat dot com
        ReportedBy: hjl at lucon dot org
                CC: gcc-bugs at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18932


^ permalink raw reply	[flat|nested] 11+ messages in thread
* [Bug target/18932] [3.4 regression]  -march=pentium4 -O2 causes ICE
  2004-12-10 20:21 [Bug target/18932] New: [3.4 regression] -march=pentium4 -O2 causes ICE hjl at lucon dot org
@ 2004-12-10 20:23 ` hjl at lucon dot org
  2004-12-10 20:25 ` rth at gcc dot gnu dot org
                   ` (7 subsequent siblings)
  8 siblings, 0 replies; 11+ messages in thread
From: hjl at lucon dot org @ 2004-12-10 20:23 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From hjl at lucon dot org  2004-12-10 20:23 -------
Created an attachment (id=7721)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=7721&action=view)
A testcase

I got

[hjl@gnu-10 tmp]$ /usr/gcc-3.4/bin/gcc -O2 -march=pentium4  -S ~/foo.c
/export/home/hjl/foo.c: In function `amd74xx_ide_dma_check':
/export/home/hjl/foo.c:16297: error: insn does not satisfy its constraints:
(insn 106 48 50 1 (parallel [
	    (set (reg:CCNO 17 flags)
		(compare:CCNO (and:QI (reg/v:QI 4 si [orig:66 speed ] [66])
			(const_int -16 [0xfffffff0]))
		    (const_int 0 [0x0])))
	    (set (reg/v:QI 4 si [orig:66 speed ] [66])
		(and:QI (reg/v:QI 4 si [orig:66 speed ] [66])
		    (const_int -16 [0xfffffff0])))
	]) 205 {*andqi_2} (nil)
    (expr_list:REG_UNUSED (reg/v:QI 4 si [orig:66 speed ] [66])
	(nil)))
/export/home/hjl/foo.c:16297: internal compiler error: in
copyprop_hardreg_forward_1, at regrename.c:1549
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18932


^ permalink raw reply	[flat|nested] 11+ messages in thread
* [Bug target/18932] [3.4 regression]  -march=pentium4 -O2 causes ICE
  2004-12-10 20:21 [Bug target/18932] New: [3.4 regression] -march=pentium4 -O2 causes ICE hjl at lucon dot org
  2004-12-10 20:23 ` [Bug target/18932] " hjl at lucon dot org
@ 2004-12-10 20:25 ` rth at gcc dot gnu dot org
  2004-12-10 21:06 ` belyshev at lubercy dot com
                   ` (6 subsequent siblings)
  8 siblings, 0 replies; 11+ messages in thread
From: rth at gcc dot gnu dot org @ 2004-12-10 20:25 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From rth at gcc dot gnu dot org  2004-12-10 20:25 -------
Do not assign prs to people unless they request it.  Assignment implies
actively working on the problem.  Use cc for advisory.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|rth at redhat dot com       |rth at gcc dot gnu dot org
             Status|UNCONFIRMED                 |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18932


^ permalink raw reply	[flat|nested] 11+ messages in thread
* [Bug target/18932] [3.4 regression]  -march=pentium4 -O2 causes ICE
  2004-12-10 20:21 [Bug target/18932] New: [3.4 regression] -march=pentium4 -O2 causes ICE hjl at lucon dot org
  2004-12-10 20:23 ` [Bug target/18932] " hjl at lucon dot org
  2004-12-10 20:25 ` rth at gcc dot gnu dot org
@ 2004-12-10 21:06 ` belyshev at lubercy dot com
  2004-12-12 19:20 ` [Bug target/18932] [3.4/4.0 regression] ICE in copyprop_hardreg_forward_1, at regrename.c belyshev at lubercy dot com
                   ` (5 subsequent siblings)
  8 siblings, 0 replies; 11+ messages in thread
From: belyshev at lubercy dot com @ 2004-12-10 21:06 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From belyshev at lubercy dot com  2004-12-10 21:06 -------
// small testcase:

int bar (int p, char c)
{
 foo (p, c);
 if (c & 0xF0)
  return p;
}


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
  GCC build triplet|i686-pc-linux-gnu           |
   GCC host triplet|i686-pc-linux-gnu           |
      Known to fail|                            |3.4.4
      Known to work|                            |3.4.3
   Last reconfirmed|0000-00-00 00:00:00         |2004-12-10 21:06:02
               date|                            |
   Target Milestone|---                         |3.4.4


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18932


^ permalink raw reply	[flat|nested] 11+ messages in thread
* [Bug target/18932] [3.4/4.0 regression] ICE in copyprop_hardreg_forward_1, at regrename.c
  2004-12-10 20:21 [Bug target/18932] New: [3.4 regression] -march=pentium4 -O2 causes ICE hjl at lucon dot org
                   ` (2 preceding siblings ...)
  2004-12-10 21:06 ` belyshev at lubercy dot com
@ 2004-12-12 19:20 ` belyshev at lubercy dot com
  2004-12-12 20:57 ` cvs-commit at gcc dot gnu dot org
                   ` (4 subsequent siblings)
  8 siblings, 0 replies; 11+ messages in thread
From: belyshev at lubercy dot com @ 2004-12-12 19:20 UTC (permalink / raw)
  To: gcc-bugs

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain, Size: 1981 bytes --]


------- Additional Comments From belyshev at lubercy dot com  2004-12-12 19:20 -------
testcase for 4.0.0, use "-O2" to reproduce:
----------------------------------------------------------------------------------------
char m[2];
char o[2];
short i[2];
int t[2];

void foo ()
{
  int c;
  
  for (c = 0; c < 2; c++)
    {
      if (i[c & 0xff] & 4)
	o[0] = 0;
      else if (i[c & 0xff] & 128)
	{
	  m[c] = t[c & 0xff];
	  o[c] = c;
	}
      
      if ((i[c & 0xff] & 136) || (i[c & 0xff] & 4))
	o[0] = 0;
    }
}
----------------------------------------------------------------------------------------
/usr/local/libexec/gcc/i686-pc-linux-gnu/4.0.0/cc1 -quiet tc-i386.c -O2
tc-i386.c: In function ‘foo’:
tc-i386.c:25: error: insn does not satisfy its constraints:
(insn 166 96 98 5 (parallel [
            (set (reg:CCNO 17 flags)
                (compare:CCNO (and:QI (reg:QI 4 si [orig:107 D.1127 ] [107])
                        (const_int -120 [0xffffff88]))
                    (const_int 0 [0x0])))
            (set (reg:QI 4 si [orig:107 D.1127 ] [107])
                (and:QI (reg:QI 4 si [orig:107 D.1127 ] [107])
                    (const_int -120 [0xffffff88])))
        ]) 207 {*andqi_2} (nil)
    (expr_list:REG_UNUSED (reg:QI 4 si [orig:107 D.1127 ] [107])
        (nil)))
tc-i386.c:25: internal compiler error: in copyprop_hardreg_forward_1, at
regrename.c:1567


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to fail|3.4.4                       |3.4.4 4.0.0
   Last reconfirmed|2004-12-10 21:06:02         |2004-12-12 19:20:28
               date|                            |
            Summary|[3.4 regression]  -         |[3.4/4.0 regression] ICE in
                   |march=pentium4 -O2 causes   |copyprop_hardreg_forward_1,
                   |ICE                         |at regrename.c


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18932


^ permalink raw reply	[flat|nested] 11+ messages in thread
* [Bug target/18932] [3.4/4.0 regression] ICE in copyprop_hardreg_forward_1, at regrename.c
  2004-12-10 20:21 [Bug target/18932] New: [3.4 regression] -march=pentium4 -O2 causes ICE hjl at lucon dot org
                   ` (3 preceding siblings ...)
  2004-12-12 19:20 ` [Bug target/18932] [3.4/4.0 regression] ICE in copyprop_hardreg_forward_1, at regrename.c belyshev at lubercy dot com
@ 2004-12-12 20:57 ` cvs-commit at gcc dot gnu dot org
  2004-12-12 20:59 ` cvs-commit at gcc dot gnu dot org
                   ` (3 subsequent siblings)
  8 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-12-12 20:57 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-12-12 20:57 -------
Subject: Bug 18932

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rth@gcc.gnu.org	2004-12-12 20:57:28

Modified files:
	gcc            : ChangeLog 
	gcc/config/i386: i386.md predicates.md 

Log message:
	PR target/18932
	* config/i386/i386.md (all splits and peepholes): Use flags_reg_operand
	and compare_operator to propagate the input CC mode to the output.
	* config/i386/predicates.md (compare_operator): New.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.6792&r2=2.6793
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.md.diff?cvsroot=gcc&r1=1.570&r2=1.571
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/predicates.md.diff?cvsroot=gcc&r1=1.6&r2=1.7



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18932


^ permalink raw reply	[flat|nested] 11+ messages in thread
* [Bug target/18932] [3.4/4.0 regression] ICE in copyprop_hardreg_forward_1, at regrename.c
  2004-12-10 20:21 [Bug target/18932] New: [3.4 regression] -march=pentium4 -O2 causes ICE hjl at lucon dot org
                   ` (4 preceding siblings ...)
  2004-12-12 20:57 ` cvs-commit at gcc dot gnu dot org
@ 2004-12-12 20:59 ` cvs-commit at gcc dot gnu dot org
  2004-12-12 21:00 ` cvs-commit at gcc dot gnu dot org
                   ` (2 subsequent siblings)
  8 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-12-12 20:59 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-12-12 20:59 -------
Subject: Bug 18932

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	rth@gcc.gnu.org	2004-12-12 20:59:24

Modified files:
	gcc            : ChangeLog 
	gcc/config/i386: i386-protos.h i386.c i386.h i386.md 

Log message:
	PR target/18932
	* config/i386/i386.md (all splits and peepholes): Use flags_reg_operand
	and compare_operator to propagate the input CC mode to the output.
	* config/i386/i386.c (compare_operator): New.
	* config/i386/i386.h (PREDICATE_CODES): Add it.
	* config/i386/i386-protos.h: Update.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=2.2326.2.727&r2=2.2326.2.728
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386-protos.h.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.104.4.2&r2=1.104.4.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.635.2.15&r2=1.635.2.16
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.h.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.368.2.5&r2=1.368.2.6
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.md.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.502.2.9&r2=1.502.2.10



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18932


^ permalink raw reply	[flat|nested] 11+ messages in thread
* [Bug target/18932] [3.4/4.0 regression] ICE in copyprop_hardreg_forward_1, at regrename.c
  2004-12-10 20:21 [Bug target/18932] New: [3.4 regression] -march=pentium4 -O2 causes ICE hjl at lucon dot org
                   ` (5 preceding siblings ...)
  2004-12-12 20:59 ` cvs-commit at gcc dot gnu dot org
@ 2004-12-12 21:00 ` cvs-commit at gcc dot gnu dot org
  2004-12-12 21:07 ` rth at gcc dot gnu dot org
  2004-12-17 15:32 ` pinskia at gcc dot gnu dot org
  8 siblings, 0 replies; 11+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-12-12 21:00 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-12-12 21:00 -------
Subject: Bug 18932

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_3-branch
Changes by:	rth@gcc.gnu.org	2004-12-12 21:00:49

Modified files:
	gcc            : ChangeLog 
	gcc/config/i386: i386-protos.h i386.c i386.h i386.md 

Log message:
	PR target/18932
	* config/i386/i386.md (all splits and peepholes): Use flags_reg_operand
	and compare_operator to propagate the input CC mode to the output.
	* config/i386/i386.c (flags_reg_operand, compare_operator): New.
	* config/i386/i386.h (PREDICATE_CODES): Add them.
	* config/i386/i386-protos.h: Update.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.16114.2.1037&r2=1.16114.2.1038
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386-protos.h.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.86.2.2&r2=1.86.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.c.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.495.2.36&r2=1.495.2.37
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.h.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.309.2.11&r2=1.309.2.12
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/i386/i386.md.diff?cvsroot=gcc&only_with_tag=gcc-3_3-branch&r1=1.404.2.26&r2=1.404.2.27



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18932


^ permalink raw reply	[flat|nested] 11+ messages in thread
* [Bug target/18932] [3.4/4.0 regression] ICE in copyprop_hardreg_forward_1, at regrename.c
  2004-12-10 20:21 [Bug target/18932] New: [3.4 regression] -march=pentium4 -O2 causes ICE hjl at lucon dot org
                   ` (6 preceding siblings ...)
  2004-12-12 21:00 ` cvs-commit at gcc dot gnu dot org
@ 2004-12-12 21:07 ` rth at gcc dot gnu dot org
  2004-12-17 15:32 ` pinskia at gcc dot gnu dot org
  8 siblings, 0 replies; 11+ messages in thread
From: rth at gcc dot gnu dot org @ 2004-12-12 21:07 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From rth at gcc dot gnu dot org  2004-12-12 21:07 -------
Fixed.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|3.4.4                       |3.3.6


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18932


^ permalink raw reply	[flat|nested] 11+ messages in thread
* [Bug target/18932] [3.4/4.0 regression] ICE in copyprop_hardreg_forward_1, at regrename.c
  2004-12-10 20:21 [Bug target/18932] New: [3.4 regression] -march=pentium4 -O2 causes ICE hjl at lucon dot org
                   ` (7 preceding siblings ...)
  2004-12-12 21:07 ` rth at gcc dot gnu dot org
@ 2004-12-17 15:32 ` pinskia at gcc dot gnu dot org
  8 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2004-12-17 15:32 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From pinskia at gcc dot gnu dot org  2004-12-17 15:32 -------
*** Bug 19057 has been marked as a duplicate of this bug. ***

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bero at arklinux dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18932


^ permalink raw reply	[flat|nested] 11+ messages in thread
* [Bug target/18932] [3.4/4.0 regression] ICE in copyprop_hardreg_forward_1, at regrename.c
       [not found] <bug-18932-682@http.gcc.gnu.org/bugzilla/>
@ 2005-10-24  1:39 ` pinskia at gcc dot gnu dot org
  0 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-10-24  1:39 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #10 from pinskia at gcc dot gnu dot org  2005-10-24 01:39 -------
*** Bug 19593 has been marked as a duplicate of this bug. ***


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |joel at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18932


^ permalink raw reply	[flat|nested] 11+ messages in thread
end of thread, other threads:[~2005-10-24  1:39 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2004-12-10 20:21 [Bug target/18932] New: [3.4 regression] -march=pentium4 -O2 causes ICE hjl at lucon dot org
2004-12-10 20:23 ` [Bug target/18932] " hjl at lucon dot org
2004-12-10 20:25 ` rth at gcc dot gnu dot org
2004-12-10 21:06 ` belyshev at lubercy dot com
2004-12-12 19:20 ` [Bug target/18932] [3.4/4.0 regression] ICE in copyprop_hardreg_forward_1, at regrename.c belyshev at lubercy dot com
2004-12-12 20:57 ` cvs-commit at gcc dot gnu dot org
2004-12-12 20:59 ` cvs-commit at gcc dot gnu dot org
2004-12-12 21:00 ` cvs-commit at gcc dot gnu dot org
2004-12-12 21:07 ` rth at gcc dot gnu dot org
2004-12-17 15:32 ` pinskia at gcc dot gnu dot org
     [not found] <bug-18932-682@http.gcc.gnu.org/bugzilla/>
2005-10-24  1:39 ` pinskia at gcc dot gnu dot org

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