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* [Bug target/17626] New: Recent peephole2:s may cause internal compiler errors
@ 2004-09-23  1:28 hp at gcc dot gnu dot org
  2004-09-23 21:59 ` [Bug target/17626] " cvs-commit at gcc dot gnu dot org
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: hp at gcc dot gnu dot org @ 2004-09-23  1:28 UTC (permalink / raw)
  To: gcc-bugs

The peephole2s marked "moverside" and "movemside" may cause noncanonical RTX,
which leads to an ICE that looks like this:

x/hws3.c: In function `f0':
x/hws3.c:47: unrecognizable insn:
(insn 196 106 108 (parallel[
            (set (reg:HI 11 r11)
                (mem/u:HI (plus:SI (reg/f:SI 13 r13 [67])
                        (mult:SI (reg/v:SI 1 r1 [23])
                            (const_int 2 [0x2]))) [7 cav1 S2 A8]))
            (set (reg/f:SI 12 r12 [70])
                (plus:SI (reg/f:SI 13 r13 [67])
                    (mult:SI (reg/v:SI 1 r1 [23])
                        (const_int 2 [0x2]))))
        ] ) -1 (nil)
    (expr_list:REG_DEAD (reg/v:SI 1 r1 [23])
        (nil)))

The left operand of the PLUS should have been the MULT, not the register.
No testcase for trunk, as this was only observed with a 3.2.1-derivate
with the peephole2-patch applied, and the failing code "works" on trunk.

-- 
           Summary: Recent peephole2:s may cause internal compiler errors
           Product: gcc
           Version: 4.0.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: hp at gcc dot gnu dot org
        ReportedBy: hp at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: cris-*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17626


^ permalink raw reply	[flat|nested] 4+ messages in thread
* [Bug target/17626] Recent peephole2:s may cause internal compiler errors
  2004-09-23  1:28 [Bug target/17626] New: Recent peephole2:s may cause internal compiler errors hp at gcc dot gnu dot org
@ 2004-09-23 21:59 ` cvs-commit at gcc dot gnu dot org
  2004-09-23 22:10 ` hp at gcc dot gnu dot org
  2004-09-29 19:50 ` hp at gcc dot gnu dot org
  2 siblings, 0 replies; 4+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-09-23 21:59 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-09-23 21:59 -------
Subject: Bug 17626

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	hp@gcc.gnu.org	2004-09-23 21:59:14

Modified files:
	gcc            : ChangeLog 
	gcc/config/cris: cris.md 

Log message:
	PR target/17626
	* config/cris/cris.md (moverside, movemside): Rename variable
	"reg" to "otherop".  To generate canonical RTX, check that otherop
	isn't constant instead of checking that operand 1 is a register.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.5593&r2=2.5594
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/cris/cris.md.diff?cvsroot=gcc&r1=1.18&r2=1.19



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17626


^ permalink raw reply	[flat|nested] 4+ messages in thread
* [Bug target/17626] Recent peephole2:s may cause internal compiler errors
  2004-09-23  1:28 [Bug target/17626] New: Recent peephole2:s may cause internal compiler errors hp at gcc dot gnu dot org
  2004-09-23 21:59 ` [Bug target/17626] " cvs-commit at gcc dot gnu dot org
@ 2004-09-23 22:10 ` hp at gcc dot gnu dot org
  2004-09-29 19:50 ` hp at gcc dot gnu dot org
  2 siblings, 0 replies; 4+ messages in thread
From: hp at gcc dot gnu dot org @ 2004-09-23 22:10 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From hp at gcc dot gnu dot org  2004-09-23 22:10 -------
<URL:http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02464.html>

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.0.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17626


^ permalink raw reply	[flat|nested] 4+ messages in thread
* [Bug target/17626] Recent peephole2:s may cause internal compiler errors
  2004-09-23  1:28 [Bug target/17626] New: Recent peephole2:s may cause internal compiler errors hp at gcc dot gnu dot org
  2004-09-23 21:59 ` [Bug target/17626] " cvs-commit at gcc dot gnu dot org
  2004-09-23 22:10 ` hp at gcc dot gnu dot org
@ 2004-09-29 19:50 ` hp at gcc dot gnu dot org
  2 siblings, 0 replies; 4+ messages in thread
From: hp at gcc dot gnu dot org @ 2004-09-29 19:50 UTC (permalink / raw)
  To: gcc-bugs


------- Additional Comments From hp at gcc dot gnu dot org  2004-09-29 19:50 -------
For the record, a necessary follow-up patch (aka. brown-paper-bag patch)
is at <URL:http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02979.html>.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17626


^ permalink raw reply	[flat|nested] 4+ messages in thread
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2004-09-23 21:59 ` [Bug target/17626] " cvs-commit at gcc dot gnu dot org
2004-09-23 22:10 ` hp at gcc dot gnu dot org
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