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patches/gcc/4.3.3/340-make-mno-spe-work-as-expected.patch
author Anthony Foiani <anthony.foiani@gmail.com>
Thu May 19 23:06:16 2011 +0200 (2011-05-19)
changeset 2461 ec30b191f0e3
permissions -rw-r--r--
complibs/ppl: build only C and C++ interfaces for PPL

By default, PPL wants to build interfaces for any of a variety of
langauges it finds on the local host (python, java, possibly perl, also
more esoteric languages such as ocaml and prolog).

These extra interfaces can double the compile time for the library. For
single-process builds, I found a savings of more than 40%:

default / j1: 716s total, 143.2s avg, 0.52s stdev
just_c / j1: 406s total, 81.2s avg, 0.33s stdev
just_c_cpp / j1: 413s total, 82.6s avg, 0.22s stdev

And for multi-process builds, it approached 50%:

default / j4: 625s total, 125.0s avg, 0.57s stdev
just_c / j4: 338s total, 67.6s avg, 1.25s stdev
just_c_cpp / j4: 327s total, 65.4s avg, 0.36s stdev

Since the PPL we build within ct-ng is only used by GCC, we only need to
build the C and C++ interfaces.

Signed-Off-By: Anthony Foiani <anthony.foiani@gmail.com> 
     1 Original patch from: ../4.3.2/340-make-mno-spe-work-as-expected.patch

     2 

     3 -= BEGIN original header =-

     4 2008-04-03  Nathan Froyd  <froydnj@codesourcery.com>

     5             Nathan Sidwell  <nathan@codesourcery.com>

     6 

     7         * config/rs6000/rs6000.opt (mspe): Remove Var property.

     8         (misel): Likewise.

     9         * config/rs6000/rs6000.h (rs6000_spe): Declare.

    10         (rs6000_isel): Likewise.

    11         * config/rs6000/rs6000.c (rs6000_spe): New variable.

    12         (rs6000_isel): New variable.

    13         (rs6000_handle_option): Handle OPT_mspe and OPT_misel.                                                                                         

    14 

    15 -= END original header =-

    16 

    17 diff -durN gcc-4.3.3.orig/gcc/config/rs6000/rs6000.c gcc-4.3.3/gcc/config/rs6000/rs6000.c

    18 --- gcc-4.3.3.orig/gcc/config/rs6000/rs6000.c	2008-11-18 23:07:58.000000000 +0100

    19 +++ gcc-4.3.3/gcc/config/rs6000/rs6000.c	2009-01-27 22:28:55.000000000 +0100

    20 @@ -174,9 +174,15 @@

    21  /* Nonzero to use AltiVec ABI.  */

    22  int rs6000_altivec_abi;

    23  

    24 +/* Nonzero if we want SPE SIMD instructions.  */

    25 +int rs6000_spe;

    26 +

    27  /* Nonzero if we want SPE ABI extensions.  */

    28  int rs6000_spe_abi;

    29  

    30 +/* Nonzero to use isel instructions.  */

    31 +int rs6000_isel;

    32 +

    33  /* Nonzero if floating point operations are done in the GPRs.  */

    34  int rs6000_float_gprs = 0;

    35  

    36 @@ -2144,11 +2150,21 @@

    37        rs6000_parse_yes_no_option ("vrsave", arg, &(TARGET_ALTIVEC_VRSAVE));

    38        break;

    39  

    40 +    case OPT_misel:

    41 +      rs6000_explicit_options.isel = true;

    42 +      rs6000_isel = value;

    43 +      break;

    44 +

    45      case OPT_misel_:

    46        rs6000_explicit_options.isel = true;

    47        rs6000_parse_yes_no_option ("isel", arg, &(rs6000_isel));

    48        break;

    49  

    50 +    case OPT_mspe:

    51 +      rs6000_explicit_options.spe = true;

    52 +      rs6000_spe = value;

    53 +      break;

    54 +

    55      case OPT_mspe_:

    56        rs6000_explicit_options.spe = true;

    57        rs6000_parse_yes_no_option ("spe", arg, &(rs6000_spe));

    58 diff -durN gcc-4.3.3.orig/gcc/config/rs6000/rs6000.h gcc-4.3.3/gcc/config/rs6000/rs6000.h

    59 --- gcc-4.3.3.orig/gcc/config/rs6000/rs6000.h	2008-01-26 18:18:35.000000000 +0100

    60 +++ gcc-4.3.3/gcc/config/rs6000/rs6000.h	2009-01-27 22:28:55.000000000 +0100

    61 @@ -349,6 +349,8 @@

    62  extern int rs6000_ieeequad;

    63  extern int rs6000_altivec_abi;

    64  extern int rs6000_spe_abi;

    65 +extern int rs6000_spe;

    66 +extern int rs6000_isel;

    67  extern int rs6000_float_gprs;

    68  extern int rs6000_alignment_flags;

    69  extern const char *rs6000_sched_insert_nops_str;

    70 diff -durN gcc-4.3.3.orig/gcc/config/rs6000/rs6000.opt gcc-4.3.3/gcc/config/rs6000/rs6000.opt

    71 --- gcc-4.3.3.orig/gcc/config/rs6000/rs6000.opt	2007-10-31 08:56:01.000000000 +0100

    72 +++ gcc-4.3.3/gcc/config/rs6000/rs6000.opt	2009-01-27 22:28:55.000000000 +0100

    73 @@ -190,7 +190,7 @@

    74  -mvrsave=yes/no	Deprecated option.  Use -mvrsave/-mno-vrsave instead

    75  

    76  misel

    77 -Target Var(rs6000_isel)

    78 +Target

    79  Generate isel instructions

    80  

    81  misel=

    82 @@ -198,7 +198,7 @@

    83  -misel=yes/no	Deprecated option.  Use -misel/-mno-isel instead

    84  

    85  mspe

    86 -Target Var(rs6000_spe)

    87 +Target

    88  Generate SPE SIMD instructions on E500

    89  

    90  mpaired
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