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patches/gcc/3.4.6/160-arm-ldm-peephole2.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Sun May 03 09:50:16 2009 +0000 (2009-05-03)
branchnewlib
changeset 1366 5e5d1e6f55d3
parent 746 b150d6f590fc
permissions -rw-r--r--
Update the newlib devel branch with stuff from /trunk@1498.

-------- diffstat follows --------
/devel/newlib/configure | 336 176 160 0 +++++++------
/devel/newlib/Makefile.in | 12 3 9 0 -
/devel/newlib/scripts/build/kernel/linux.sh | 2 1 1 0
/devel/newlib/scripts/build/internals.sh | 1 0 1 0 -
/devel/newlib/scripts/build/libc/eglibc.sh | 1 0 1 0 -
/devel/newlib/scripts/build/mpfr.sh | 2 1 1 0
/devel/newlib/scripts/functions | 111 5 106 0 ----
/devel/newlib/scripts/config.guess | 7 5 2 0 +
/devel/newlib/scripts/config.sub | 3 2 1 0 +
/devel/newlib/scripts/saveSample.sh.in | 4 2 2 0
/devel/newlib/docs/overview.txt | 8 6 2 0 +
/devel/newlib/samples/armeb-unknown-linux-uclibc/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/sh4-unknown-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/x86_64-unknown-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/arm-unknown-elf/crosstool.config | 12 3 9 0 -
/devel/newlib/samples/armeb-unknown-eabi/crosstool.config | 2 0 2 0 -
/devel/newlib/samples/arm-unknown-linux-gnueabi/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/ia64-unknown-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/x86_64-unknown-linux-uclibc/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/armeb-unknown-linux-gnueabi/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/powerpc-e500v2-linux-gnuspe/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/i686-nptl-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/arm-unknown-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/powerpc-unknown-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/mips-unknown-linux-uclibc/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/arm-unknown-linux-uclibcgnueabi/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/arm-iphone-linux-gnueabi/crosstool.config | 8 4 4 0
/devel/newlib/samples/armeb-unknown-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/powerpc-unknown_nofpu-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/i586-geode-linux-uclibc/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/arm-unknown-linux-uclibc/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/powerpc-unknown-linux-uclibc/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/mips-unknown-elf/crosstool.config | 2 0 2 0 -
/devel/newlib/samples/powerpc-405-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/armeb-unknown-linux-uclibcgnueabi/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/arm-unknown-eabi/crosstool.config | 12 3 9 0 -
/devel/newlib/samples/mipsel-unknown-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/powerpc64-unknown-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/alphaev56-unknown-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/samples/powerpc-860-linux-gnu/crosstool.config | 14 5 9 0 -
/devel/newlib/config/kernel/linux.in | 108 2 106 0 ----
/devel/newlib/config/global/ct-behave.in | 22 13 9 0 +
/devel/newlib/config/global/download.in | 210 15 195 0 +-------
/devel/newlib/config/libc/glibc.in | 7 7 0 0 +
/devel/newlib/config/libc/glibc-eglibc.in-common | 15 14 1 0 +
45 files changed, 382 insertions(+), 839 deletions(-) 
     1 diff -durN gcc-3.4.6.orig/gcc/config/arm/arm.c gcc-3.4.6/gcc/config/arm/arm.c

     2 --- gcc-3.4.6.orig/gcc/config/arm/arm.c	2007-08-15 22:57:51.000000000 +0200

     3 +++ gcc-3.4.6/gcc/config/arm/arm.c	2007-08-15 22:57:51.000000000 +0200

     4 @@ -4572,6 +4572,10 @@

     5  int

     6  adjacent_mem_locations (rtx a, rtx b)

     7  {

     8 +  /* We don't guarantee to preserve the order of these memory refs.  */

     9 +  if (volatile_refs_p (a) || volatile_refs_p (b))

    10 +    return 0;

    11 +

    12    if ((GET_CODE (XEXP (a, 0)) == REG

    13         || (GET_CODE (XEXP (a, 0)) == PLUS

    14  	   && GET_CODE (XEXP (XEXP (a, 0), 1)) == CONST_INT))

    15 @@ -4611,6 +4615,17 @@

    16  	return 0;

    17  

    18        val_diff = val1 - val0;

    19 +

    20 +      if (arm_ld_sched)

    21 +	{

    22 +	  /* If the target has load delay slots, then there's no benefit

    23 +	     to using an ldm instruction unless the offset is zero and

    24 +	     we are optimizing for size.  */

    25 +	  return (optimize_size && (REGNO (reg0) == REGNO (reg1))

    26 +		  && (val0 == 0 || val1 == 0 || val0 == 4 || val1 == 4)

    27 +		  && (val_diff == 4 || val_diff == -4));

    28 +	}

    29 +

    30        return ((REGNO (reg0) == REGNO (reg1))

    31  	      && (val_diff == 4 || val_diff == -4));

    32      }
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