patches/gcc/4.3.3/230-pr34571.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sat Jan 31 17:49:27 2009 +0000 (2009-01-31)
changeset 1183 268544004e77
permissions -rw-r--r--
On 20090131.1659+0100, Vincent Sanders <vince@kyllikki.org> wrote:
[This]patch is a bit more involved. The patch addresses a gcc
regression in the 4.3 series (specifically this patch is against 4.3.2
which does *not* have a lot of other issues which affect kernel building)

GCC bug tracker has this issue as
#38453 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38453
#32044 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32044

comment 65 of #32044 has the fix being applied to gcc trunk as revision #142719

The attached patch is a backport to gcc 4.3.2 which allows this
version to be used to generate correct output for various ARM kernel
build (and indeed is teh correct answer in general).

/trunk/patches/gcc/4.3.2/360-fix-expensive-optimize.patch | 207 207 0 0 +++++++++++++++++++++
1 file changed, 207 insertions(+)
     1 Original patch from: ../4.3.2/230-pr34571.patch
     2 
     3 -= BEGIN original header =-
     4 Original patch from gentoo: gentoo/src/patchsets/gcc/4.3.1/gentoo/64_all_gcc43-pr34571.patch
     5 http://gcc.gnu.org/PR34571
     6 
     7 2007-12-26  Rask Ingemann Lambertsen  <rask@sygehus.dk>
     8 
     9 	PR target/34571
    10 	* config/alpha/alpha.c (alpha_cannot_force_const_mem): Use
    11 	symbolic_operand.
    12 	* varasm.c (output_constant_pool_1): Fix typo.
    13 
    14 -= END original header =-
    15 
    16 diff -durN gcc-4.3.3.orig/gcc/config/alpha/alpha.c gcc-4.3.3/gcc/config/alpha/alpha.c
    17 --- gcc-4.3.3.orig/gcc/config/alpha/alpha.c	2008-09-09 01:16:55.000000000 +0200
    18 +++ gcc-4.3.3/gcc/config/alpha/alpha.c	2009-01-27 22:25:29.000000000 +0100
    19 @@ -1113,8 +1113,7 @@
    20  static bool
    21  alpha_cannot_force_const_mem (rtx x)
    22  {
    23 -  enum rtx_code code = GET_CODE (x);
    24 -  return code == SYMBOL_REF || code == LABEL_REF || code == CONST;
    25 +  return symbolic_operand (x, GET_MODE (x));
    26  }
    27  
    28  /* We do not allow indirect calls to be optimized into sibling calls, nor