[Bug target/27991] New: [4.2 regression] ICE in reload_cse_simplify_operands

[Bug target/27991] New: [4.2 regression] ICE in reload_cse_simplify_operands

[schwab at suse dot de]

s_ctanhl.c: In function ‘__ctanhl’:
s_ctanhl.c:59: error: insn does not satisfy its constraints:
(insn 265 149 150 14 (set (mem:XF (pre_dec:SI (reg/f:SI 15 %sp)) [0 S12 A8])
        (reg/v:XF 5 %d5 [orig:60 x+12 ] [60])) 51 {*m68k.md:1087} (nil)
    (nil))
s_ctanhl.c:59: internal compiler error: in reload_cse_simplify_operands, at
postreload.c:393

Broken by this change:
r110091 | pbrook | 2006-01-22 16:01:02 +0100 (So, 22 Jan 2006) | 37 lines


-- 
           Summary: [4.2 regression] ICE in reload_cse_simplify_operands
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: schwab at suse dot de
GCC target triplet: m68k-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27991

[Bug target/27991] [4.2 regression] ICE in reload_cse_simplify_operands

[schwab at suse dot de]

------- Comment #1 from schwab at suse dot de  2006-06-11 20:43 -------
Created an attachment (id=11651)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11651&action=view)
Testcase


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27991

[Bug target/27991] [4.2 regression] ICE in reload_cse_simplify_operands

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |pinskia at gcc dot gnu dot
                   |                            |org
   Target Milestone|---                         |4.2.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27991

[Bug target/27991] [4.2 regression] ICE in reload_cse_simplify_operands

[mmitchel at gcc dot gnu dot org]

------- Comment #2 from mmitchel at gcc dot gnu dot org  2006-07-05 18:00 -------
68K is not release-critical.

However, Paul, would you please look into this, as Andreas believes this to be
caused by your change?


-- 

mmitchel at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|P3                          |P5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27991

[Bug target/27991] [4.2 regression] ICE in reload_cse_simplify_operands

[pbrook at gcc dot gnu dot org]

------- Comment #3 from pbrook at gcc dot gnu dot org  2006-07-06 15:26 -------
It looks like this is a latent bug.
My patch allows negxf to operate on integer registers (previously it was only
implemented on FP regs).
This causes the register allocator to make different register choices, and
reload falls over.


-- 

pbrook at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |pbrook at gcc dot gnu dot
                   |dot org                     |org
             Status|UNCONFIRMED                 |ASSIGNED
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2006-07-06 15:26:24
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27991

[Bug target/27991] [4.2 regression] ICE in reload_cse_simplify_operands

[pbrook at gcc dot gnu dot org]

------- Comment #4 from pbrook at gcc dot gnu dot org  2006-07-07 23:39 -------
Subject: Bug 27991

Author: pbrook
Date: Fri Jul  7 23:38:56 2006
New Revision: 115272

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=115272
Log:
2006-07-08  Paul Brook  <paul@codesourcery.com>

        PR target/27991
        * config/m68k/m68k.md: Add r-m patterns for 68881 movxf.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/m68k/m68k.md


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27991

[Bug target/27991] [4.2 regression] ICE in reload_cse_simplify_operands

[pbrook at gcc dot gnu dot org]

------- Comment #5 from pbrook at gcc dot gnu dot org  2006-07-07 23:39 -------
Fixed.


-- 

pbrook at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27991