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patches/gcc/4.3.6/340-make-mno-spe-work-as-expected.patch
author Michael Hope <michael.hope@linaro.org>
Wed Oct 19 15:27:32 2011 +1300 (2011-10-19)
changeset 2739 f320e22f2cba
parent 2124 5dd0b83ae528
permissions -rw-r--r--
arch: add softfp support

Some architectures support a mixed hard/soft floating point, where
the compiler emits hardware floating point instructions, but passes
the operands in core (aka integer) registers.

For example, ARM supports this mode (to come in the next changeset).

Add support for softfp cross compilers to the GCC and GLIBC
configuration. Needed for Ubuntu and other distros that are softfp.

Signed-off-by: Michael Hope <michael.hope@linaro.org>
[yann.morin.1998@anciens.enib.fr: split the original patch]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr> 
     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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