package/gcc/4.9.3/880-nios2_legitimize_address.patch

   1 From b0ea54f3f995754881e0ea6651133aa7b58eeaa2 Mon Sep 17 00:00:00 2001
   2 From: cltang <cltang@138bc75d-0d04-0410-961f-82ee72b054a4>
   3 Date: Tue, 22 Sep 2015 12:23:20 +0000
   4 Subject: [PATCH] nios2_legitimize_address 2015-09-22  Chung-Lin Tang
   5  <cltang@codesourcery.com>
   6
   7         Backport from mainline
   8         2015-09-22  Chung-Lin Tang  <cltang@codesourcery.com>
   9
  10         * config/nios2/nios2.c (nios2_legitimize_address): When handling
  11         'reg + reloc' cases, allow first operand to be non-REG, and use
  12         force_reg() to enforce address pattern.
  13
  14 git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/gcc-5-branch@228013 138bc75d-0d04-0410-961f-82ee72b054a4
  15
  16 Fixes:
  17 http://autobuild.buildroot.net/results/901/90186d1fe134b804c0101554296b1235dc0ccbb0
  18
  19 [backported to 4.9.3]
  20 Signed-off-by: Romain Naour <romain.naour@gmail.com>
  21 ---
  22  gcc/config/nios2/nios2.c | 4 ++--
  23  1 file changed, 2 insertions(+), 2 deletions(-)
  24
  25 diff --git a/gcc/config/nios2/nios2.c b/gcc/config/nios2/nios2.c
  26 index 047b615..41dd6f9 100644
  27 --- a/gcc/config/nios2/nios2.c
  28 +++ b/gcc/config/nios2/nios2.c
  29 @@ -1786,15 +1786,15 @@ nios2_legitimize_address (rtx x, rtx oldx ATTRIBUTE_UNUSED,
  30
  31       Which will be output as '%tls_le(var+48)(r23)' in assembly.  */
  32    if (GET_CODE (x) == PLUS
  33 -      && GET_CODE (XEXP (x, 0)) == REG
  34        && GET_CODE (XEXP (x, 1)) == CONST)
  35      {
  36 -      rtx unspec, offset, reg = XEXP (x, 0);
  37 +      rtx unspec, offset;
  38        split_const (XEXP (x, 1), &unspec, &offset);
  39        if (GET_CODE (unspec) == UNSPEC
  40           && !nios2_large_offset_p (XINT (unspec, 1))
  41           && offset != const0_rtx)
  42         {
  43 +         rtx reg = force_reg (Pmode, XEXP (x, 0));
  44           unspec = copy_rtx (unspec);
  45           XVECEXP (unspec, 0, 0)
  46             = plus_constant (Pmode, XVECEXP (unspec, 0, 0), INTVAL (offset));
  47 --
  48 2.5.0
  49