patches/gcc/4.3.1/230-pr34571.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Wed Sep 09 00:02:01 2009 +0200 (2009-09-09)
changeset 1525 4647e6fb994a
parent 746 b150d6f590fc
permissions -rw-r--r--
gcc: add patch to fix EABI for armv4t

As pointed out by Martin GUY, gcc incorrectly generates armv5t
instrcutions for EABI, even for cores that are an armv4t.
The new patch (for the 4.3 series) fixes the problem by downgrading
the default CPU for EABI to being an armv4t core.
     1 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/64_all_gcc43-pr34571.patch
     2 http://gcc.gnu.org/PR34571
     3 
     4 2007-12-26  Rask Ingemann Lambertsen  <rask@sygehus.dk>
     5 
     6 	PR target/34571
     7 	* config/alpha/alpha.c (alpha_cannot_force_const_mem): Use
     8 	symbolic_operand.
     9 	* varasm.c (output_constant_pool_1): Fix typo.
    10 
    11 diff -durN gcc-4.3.1.orig/gcc/config/alpha/alpha.c gcc-4.3.1/gcc/config/alpha/alpha.c
    12 --- gcc-4.3.1.orig/gcc/config/alpha/alpha.c	2008-02-07 18:45:24.000000000 +0100
    13 +++ gcc-4.3.1/gcc/config/alpha/alpha.c	2008-06-10 14:58:24.000000000 +0200
    14 @@ -1113,8 +1113,7 @@
    15  static bool
    16  alpha_cannot_force_const_mem (rtx x)
    17  {
    18 -  enum rtx_code code = GET_CODE (x);
    19 -  return code == SYMBOL_REF || code == LABEL_REF || code == CONST;
    20 +  return symbolic_operand (x, GET_MODE (x));
    21  }
    22  
    23  /* We do not allow indirect calls to be optimized into sibling calls, nor
    24 diff -durN gcc-4.3.1.orig/gcc/varasm.c gcc-4.3.1/gcc/varasm.c
    25 --- gcc-4.3.1.orig/gcc/varasm.c	2007-12-05 22:55:10.000000000 +0100
    26 +++ gcc-4.3.1/gcc/varasm.c	2008-06-10 14:58:24.000000000 +0200
    27 @@ -3710,7 +3710,7 @@
    28        /* FALLTHRU  */
    29  
    30      case LABEL_REF:
    31 -      tmp = XEXP (x, 0);
    32 +      tmp = XEXP (tmp, 0);
    33        gcc_assert (!INSN_DELETED_P (tmp));
    34        gcc_assert (!NOTE_P (tmp)
    35  		  || NOTE_KIND (tmp) != NOTE_INSN_DELETED);