toolchain/gcc/patches/4.3.4/410-fix_pr37436.patch

   1 --- a/gcc/config/arm/arm.c
   2 +++ b/gcc/config/arm/arm.c
   3 @@ -3769,6 +3769,7 @@ arm_legitimate_address_p (enum machine_m
   4        rtx xop1 = XEXP (x, 1);
   5
   6        return ((arm_address_register_rtx_p (xop0, strict_p)
   7 +              && GET_CODE(xop1) == CONST_INT
   8                && arm_legitimate_index_p (mode, xop1, outer, strict_p))
   9               || (arm_address_register_rtx_p (xop1, strict_p)
  10                   && arm_legitimate_index_p (mode, xop0, outer, strict_p)));
  11 --- a/gcc/config/arm/arm.md
  12 +++ b/gcc/config/arm/arm.md
  13 @@ -4199,7 +4199,7 @@
  14
  15  (define_expand "extendqihi2"
  16    [(set (match_dup 2)
  17 -       (ashift:SI (match_operand:QI 1 "general_operand" "")
  18 +       (ashift:SI (match_operand:QI 1 "arm_reg_or_extendqisi_mem_op" "")
  19                    (const_int 24)))
  20     (set (match_operand:HI 0 "s_register_operand" "")
  21         (ashiftrt:SI (match_dup 2)
  22 @@ -4224,7 +4224,7 @@
  23
  24  (define_insn "*arm_extendqihi_insn"
  25    [(set (match_operand:HI 0 "s_register_operand" "=r")
  26 -       (sign_extend:HI (match_operand:QI 1 "memory_operand" "Uq")))]
  27 +       (sign_extend:HI (match_operand:QI 1 "arm_extendqisi_mem_op" "Uq")))]
  28    "TARGET_ARM && arm_arch4"
  29    "ldr%(sb%)\\t%0, %1"
  30    [(set_attr "type" "load_byte")
  31 @@ -4235,7 +4235,7 @@
  32
  33  (define_expand "extendqisi2"
  34    [(set (match_dup 2)
  35 -       (ashift:SI (match_operand:QI 1 "general_operand" "")
  36 +       (ashift:SI (match_operand:QI 1 "arm_reg_or_extendqisi_mem_op" "")
  37                    (const_int 24)))
  38     (set (match_operand:SI 0 "s_register_operand" "")
  39         (ashiftrt:SI (match_dup 2)
  40 @@ -4267,7 +4267,7 @@
  41
  42  (define_insn "*arm_extendqisi"
  43    [(set (match_operand:SI 0 "s_register_operand" "=r")
  44 -       (sign_extend:SI (match_operand:QI 1 "memory_operand" "Uq")))]
  45 +       (sign_extend:SI (match_operand:QI 1 "arm_extendqisi_mem_op" "Uq")))]
  46    "TARGET_ARM && arm_arch4 && !arm_arch6"
  47    "ldr%(sb%)\\t%0, %1"
  48    [(set_attr "type" "load_byte")
  49 @@ -4278,7 +4278,8 @@
  50
  51  (define_insn "*arm_extendqisi_v6"
  52    [(set (match_operand:SI 0 "s_register_operand" "=r,r")
  53 -       (sign_extend:SI (match_operand:QI 1 "nonimmediate_operand" "r,Uq")))]
  54 +       (sign_extend:SI
  55 +        (match_operand:QI 1 "arm_reg_or_extendqisi_mem_op" "r,Uq")))]
  56    "TARGET_ARM && arm_arch6"
  57    "@
  58     sxtb%?\\t%0, %1
  59 --- a/gcc/config/arm/predicates.md
  60 +++ b/gcc/config/arm/predicates.md
  61 @@ -234,6 +234,10 @@
  62         (match_test "arm_legitimate_address_p (mode, XEXP (op, 0), SIGN_EXTEND,
  63                                               0)")))
  64
  65 +(define_special_predicate "arm_reg_or_extendqisi_mem_op"
  66 +  (ior (match_operand 0 "arm_extendqisi_mem_op")
  67 +       (match_operand 0 "s_register_operand")))
  68 +
  69  (define_predicate "power_of_two_operand"
  70    (match_code "const_int")
  71  {