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patches/gcc/3.3.6/120-gcc-3.3.4-arm-pr22528.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun Feb 17 22:08:06 2008 +0000 (2008-02-17)
changeset 431 8bde4c6ea47a
permissions -rw-r--r--
Robert P. J. DAY says:

apparently, the patchset for gcc 4.2.1 applies properly to the
source for gcc 4.2.2 and gcc 4.2.3. so, if you want, you can simply
add support for those last two just by augmenting menuconfig and
adding a couple symlinks for those two directories. seems like a
cheap way to add a couple new versions. 
     1 From http://gcc.gnu.org/ml/gcc-patches/2003-11/msg00832.html, by

     2 Richard Earnshaw.  Fixes http://gcc.gnu.org/PR22528

     3 

     4 --- gcc-3.3.4/gcc/config/arm/arm.md.orig	2004-03-30 22:43:44.000000000 +0200

     5 +++ gcc-3.3.4/gcc/config/arm/arm.md	2005-08-15 12:21:55.000000000 +0200

     6 @@ -4275,7 +4275,7 @@

     7     (set (match_dup 2)

     8  	(ashiftrt:SI (match_operand 0 "" "") (const_int 8)))

     9     ;; store the high byte

    10 -   (set (match_dup 4) (subreg:QI (match_dup 2) 0))]	;explicit subreg safe

    11 +   (set (match_dup 4) (match_dup 5))]

    12    "TARGET_ARM"

    13    "

    14    {

    15 @@ -4291,7 +4291,8 @@

    16      operands[1] = adjust_address (operands[1], QImode, 0);

    17      operands[3] = gen_lowpart (QImode, operands[0]);

    18      operands[0] = gen_lowpart (SImode, operands[0]);

    19 -    operands[2] = gen_reg_rtx (SImode); 

    20 +    operands[2] = gen_reg_rtx (SImode);

    21 +    operands[5] = gen_lowpart (QImode, operands[2]);

    22    }"

    23  )

    24  

    25 @@ -4299,7 +4300,7 @@

    26    [(set (match_dup 4) (match_dup 3))

    27     (set (match_dup 2)

    28  	(ashiftrt:SI (match_operand 0 "" "") (const_int 8)))

    29 -   (set (match_operand 1 "" "")	(subreg:QI (match_dup 2) 3))]

    30 +   (set (match_operand 1 "" "")	(match_dup 5))]

    31    "TARGET_ARM"

    32    "

    33    {

    34 @@ -4316,13 +4317,14 @@

    35      operands[3] = gen_lowpart (QImode, operands[0]);

    36      operands[0] = gen_lowpart (SImode, operands[0]);

    37      operands[2] = gen_reg_rtx (SImode);

    38 +    operands[5] = gen_lowpart (QImode, operands[2]);

    39    }"

    40  )

    41  

    42  ;; Subroutine to store a half word integer constant into memory.

    43  (define_expand "storeinthi"

    44    [(set (match_operand 0 "" "")

    45 -	(subreg:QI (match_operand 1 "" "") 0))

    46 +	(match_operand 1 "" ""))

    47     (set (match_dup 3) (match_dup 2))]

    48    "TARGET_ARM"

    49    "

    50 @@ -4363,6 +4365,7 @@

    51      operands[3] = adjust_address (op0, QImode, 1);

    52      operands[0] = adjust_address (operands[0], QImode, 0);

    53      operands[2] = gen_lowpart (QImode, operands[2]);

    54 +    operands[1] = gen_lowpart (QImode, operands[1]);

    55    }"

    56  )

    57  

    58 @@ -4682,11 +4685,12 @@

    59     (set (match_dup 3)

    60  	(ashiftrt:SI (match_dup 2) (const_int 16)))

    61     (set (match_operand:HI 0 "s_register_operand" "")

    62 -	(subreg:HI (match_dup 3) 0))]

    63 +	(match_dup 4))]

    64    "TARGET_ARM"

    65    "

    66    operands[2] = gen_reg_rtx (SImode);

    67    operands[3] = gen_reg_rtx (SImode);

    68 +  operands[4] = gen_lowpart (HImode, operands[3]);

    69    "

    70  )

    71
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