Re: Housekeeping work in backends.html

[Eric Botcazou <ebotcazou@adacore.com>]

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> the attached patch removes obsolete ports (c4x, m68hc11 and ms1), toggles
> the 'p' letter and adjust accordingly (only avr, fr30, m68k, mcore, rs6000
> and sh still use define_peephole) and removes trailing spaces.

Same treatment for the 'd' letter, the ports that do not use DFA scheduler 
descriptions are a clear minority (avr, cr16, cris, fr30, h8300, m32c, mmix, 
msp430, pdp11, stormy16, vax).  Applied.

-- 
Eric Botcazou

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Index: backends.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/backends.html,v
retrieving revision 1.56
diff -u -p -r1.56 backends.html
--- backends.html	7 Jan 2015 08:10:32 -0000	1.56
+++ backends.html	7 Jan 2015 08:37:40 -0000
@@ -52,7 +52,7 @@ f       Port does not define prologue an
 g       Port does not define TARGET_ASM_FUNCTION_(PRO|EPI)LOGUE.
 m       Port does not use define_constants.
 b       Port does not use '"* ..."' notation for output template code.
-d       Port uses DFA scheduler descriptions.
+d       Port does not use DFA scheduler descriptions.
 a       Port generates multiple inheritance thunks using
         TARGET_ASM_OUTPUT_MI(_VCALL)_THUNK.
 t       All insns either produce exactly one assembly instruction, or
@@ -66,49 +66,49 @@ s       <arch>-elf is the correct 
            |      Characteristics
 Target     | HMSLQNFICBD lqrcpfgmbdates
 -----------+---------------------------
-aarch64    |     Q        q    g  da  s
-alpha      |  ?? Q   C    q    g bda e
-arc        |          B        g  da
-arm        |                      da  s
-avr        |    L  FI    l  cp g b
-bfin       |       F           g  da
-c6x        |   S     CB        g bda
-cr16       |    L  F C         g      s
-cris       |       F  B     c  g b a  s
-epiphany   |         C         g bda  s
-fr30       | ??    FI B      p gm     s
-frv        | ??       B           da  s
-h8300      |       FI       c  g      s
-i386       |   ? Q        q       da
-ia64       |   ? Q   C    qr      da
-iq2000     | ???   FICB        g  d t
-lm32       |       F           g bd
-m32c       |    L  FI    l     g      s
-m32r       |       FI             d   s
+aarch64    |     Q        q    g   a  s
+alpha      |  ?? Q   C    q    g b a e
+arc        |          B        g   a
+arm        |                       a  s
+avr        |    L  FI    l  cp g bd
+bfin       |       F           g   a
+c6x        |   S     CB        g b a
+cr16       |    L  F C         g  d   s
+cris       |       F  B     c  g bda  s
+epiphany   |         C         g b a  s
+fr30       | ??    FI B      p gm d   s
+frv        | ??       B            a  s
+h8300      |       FI       c  g  d   s
+i386       |   ? Q        q        a
+ia64       |   ? Q   C    qr       a
+iq2000     | ???   FICB        g    t
+lm32       |       F           g b 
+m32c       |    L  FI    l     g  d   s
+m32r       |       FI                 s
 m68k       |   ?            cp     a
-mcore      |  ?    FI        p gm d   s
-mep        |       F C         g  d t s
-microblaze |         CB          bd   s
-mips       |     Q   CB   qr     bda  s
-mmix       | HM  Q   C    q      b a e
+mcore      |  ?    FI        p gm     s
+mep        |       F C         g    t s
+microblaze |         CB          b    s
+mips       |     Q   CB   qr     b a  s
+mmix       | HM  Q   C    q      bda e
 mn10300    | ??             c  g      s
-msp430     |    L  FI    l     g      s
-nds32      |       F C            da  s
-nios2      |   S     C           bd
-pa         |   ? Q   CBD  qr    m da e
-pdp11      |    L   IC    qrc        e
-rs6000     |     Q   C    qr p    da
-s390       |   ? Q        qr   g bda e
-sh         |     Q   CB   qr p   bda
-sparc      |     Q   CB   qr      da
-spu        |   ? Q  *C         g bd
-stormy16   | ???L  FIC D l      m  a
-tilegx     |   S Q   C    q    g bda e
-tilepro    |   S   F C         g bda e
-v850       | ??    FI       c  gm d   s
-visium     |          B        g bd   s
-vax        |  M?    I       c      a e
-xtensa     |         C           bd
+msp430     |    L  FI    l     g  d   s
+nds32      |       F C             a  s
+nios2      |   S     C           b 
+pa         |   ? Q   CBD  qr    m  a e
+pdp11      |    L   IC    qrc     d  e
+rs6000     |     Q   C    qr p     a
+s390       |   ? Q        qr   g b a e
+sh         |     Q   CB   qr p   b a
+sparc      |     Q   CB   qr       a
+spu        |   ? Q  *C         g b 
+stormy16   | ???L  FIC D l      m da
+tilegx     |   S Q   C    q    g b a e
+tilepro    |   S   F C         g b a e
+v850       | ??    FI       c  gm     s
+visium     |          B        g b    s
+vax        |  M?    I       c     da e
+xtensa     |         C           b 
 </pre>
 
 <p>For AVR simulator, see <a