[Bug rtl-optimization/48575] New: RTL vector patterns are limited to 26 elements

[Bug rtl-optimization/48575] New: RTL vector patterns are limited to 26 elements

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48575

           Summary: RTL vector patterns are limited to 26 elements
           Product: gcc
           Version: 4.7.0
               URL: http://gcc.gnu.org/ml/gcc-patches/2011-03/msg02105.htm
                    l
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com


genrecog.c uses 26 lower case letters for vector elements.
Patterns like

;;(define_insn "vec_interleave_evenv32qi"
;;  [(set (match_operand:V32QI 0 "register_operand" "=r")
;;    (vec_select:V32QI
;;      (vec_concat:V64QI
;;        (match_operand:V32QI 1 "register_operand" "0")
;;        (match_operand:V32QI 2 "register_operand" "r"))
;;      (parallel [(const_int  0) (const_int 32)
;;             (const_int  2) (const_int 34)
;;             (const_int  4) (const_int 36)
;;             (const_int  6) (const_int 38)
;;             (const_int  8) (const_int 40)
;;             (const_int 10) (const_int 42)
;;             (const_int 12) (const_int 44)
;;             (const_int 14) (const_int 46)
;;             (const_int 16) (const_int 48)
;;             (const_int 18) (const_int 50)
;;             (const_int 20) (const_int 52)
;;             (const_int 22) (const_int 54)
;;             (const_int 24) (const_int 56)
;;             (const_int 26) (const_int 58)
;;             (const_int 28) (const_int 60)
;;             (const_int 30) (const_int 62)])))]
;;  ""
;;  "rimihv\t%0,%2,8,15,8"
;;  [(set_attr "type" "rimi")])

don't work since they have more 26 elements. There is no
fundamental reason to use lower case letters for vector
elements. A patch is posted at

http://gcc.gnu.org/ml/gcc-patches/2011-03/msg02105.html

to use [0x80...UCHAR_MAX] for vector elements.

[Bug rtl-optimization/48575] RTL vector patterns are limited to 26 elements

[rsandifo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48575

--- Comment #1 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> 2011-05-26 19:16:10 UTC ---
Author: rsandifo
Date: Thu May 26 19:16:05 2011
New Revision: 174305

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174305
Log:
gcc/
    PR rtl-optimization/48575
    * genrecog.c (position_type): New enum.
    (position): New structure.
    (decision): Use position structure instead of a string.
    (root_pos, peep2_insn_pos_list): New variables.
    (next_position, compare_positions): New functions.
    (new_decision): Use position structures instead of strings.
    (maybe_both_true): Likewise.
    (change_state): Likewise.
    (write_tree): Likewise.
    (make_insn_sequence): Likewise.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/genrecog.c

[Bug rtl-optimization/48575] RTL vector patterns are limited to 26 elements

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48575

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.7.0

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> 2011-08-25 15:20:10 UTC ---
Fixed.