* sysdeps/powerpc/powerpc32/970/fpu/Implies: New file.

	* sysdeps/powerpc/powerpc32/power5/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc32/power5+/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc32/power6/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc32/power6x/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc64/970/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc64/power5/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc64/power5+/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc64/power6/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc64/power6x/fpu/Implies: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/970/fpu/Implies: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/power4/fpu/Implies:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/power5/fpu/Implies:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/power5+/fpu/Implies:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/power6/fpu/Implies:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/power6x/fpu/Implies:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/970/fpu/Implies: New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/power4/fpu/Implies:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/power5/fpu/Implies:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/power5+/fpu/Implies:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/power6/fpu/Implies:
	New file.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/power6x/fpu/Implies:
	New file.

2007-05-31  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrint.S: Move.
	* sysdeps/powerpc/powerpc32/power4/fpu/s_llrint.S: To here.
	* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrintf.S: Move.
	* sysdeps/powerpc/powerpc32/power4/fpu/s_llrintf.S: To here.
	* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S: Move.
	* sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S: To here.
	* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llroundf.S: Move.
	* sysdeps/powerpc/powerpc32/power4/fpu/s_llroundf.S: To here.

2007-05-22  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/power5+/fpu/s_round.S
	(LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1.
	* sysdeps/powerpc/powerpc32/power5+/fpu/s_trunc.S
	(LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1.
	* sysdeps/powerpc/powerpc64/power5+/fpu/s_round.S
	(LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1.
	* sysdeps/powerpc/powerpc64/power5+/fpu/s_trunc.S
	(LONG_DOUBLE_COMPAT): Specify correct version, GLIBC_2_1.

2007-05-21  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/power4/fpu/slowexp.c: New file.
	* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt.c: New file.
	* sysdeps/powerpc/powerpc64/power4/fpu/slowexp.c: New file.
	* sysdeps/powerpc/powerpc64/power4/fpu/w_sqrt.c: New file.

2007-03-15  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrint.S
	[LONG_DOUBLE_COMPAT]: Add compat_symbol for llrintl@@GLIBC_2_1.

2006-02-13  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/power6/fpu/s_llrint.S: New File
	* sysdeps/powerpc/powerpc32/power6/fpu/s_llrintf.S: New File
	* sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S: New File
	* sysdeps/powerpc/powerpc32/power6/fpu/s_llroundf.S: New File

2006-10-20  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/power4/fpu/slowpow.c: New file.
	* sysdeps/powerpc/powerpc64/power4/fpu/slowpow.c: New file.

2006-10-03  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llround.S: New file.
	* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llroundf.S: New file.

	* sysdeps/powerpc/powerpc32/powerpc64/fpu/Makefile: Moved.
	* sysdeps/powerpc/powerpc32/powerpc64/fpu/mpa.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/Makefile: To here.
	* sysdeps/powerpc/powerpc32/power4/fpu/mpa.c: Likewise.

2006-09-29  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/power6x/fpu/s_lrint.S: New file.
	* sysdeps/powerpc/powerpc32/power6x/fpu/s_lround.S: New file.
	* sysdeps/powerpc/powerpc64/power6x/fpu/s_llrint.S: New file.
	* sysdeps/powerpc/powerpc64/power6x/fpu/s_llround.S: New file.

2006-09-28  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/power5+/fpu/s_llround.S: New file.
	* sysdeps/powerpc/powerpc32/power5+/fpu/s_llroundf.S: New file.
	* sysdeps/powerpc/powerpc32/power5+/fpu/s_lround.S: New file.
	* sysdeps/powerpc/powerpc32/power6x/fpu/Implies: New file.
	* sysdeps/powerpc/powerpc64/power5+/fpu/s_llround.S: New file.
	* sysdeps/powerpc/powerpc64/power6x/fpu/Implies: New file.

2006-08-31  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/powerpc64/fpu/Makefile: New file.
	* sysdeps/powerpc/powerpc32/powerpc64/fpu/mpa.c: New file.
	* sysdeps/powerpc/powerpc64/power4/fpu/Makefile: New file.
	* sysdeps/powerpc/powerpc64/power4/fpu/mpa.c: New file.

2006-06-15  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/power5+/fpu/s_ceil.S: New file.
	* sysdeps/powerpc/powerpc32/power5+/fpu/s_ceilf.S: New file.
	* sysdeps/powerpc/powerpc32/power5+/fpu/s_floor.S: New file.
	* sysdeps/powerpc/powerpc32/power5+/fpu/s_floorf.S: New file.
	* sysdeps/powerpc/powerpc32/power5+/fpu/s_round.S: New file.
	* sysdeps/powerpc/powerpc32/power5+/fpu/s_roundf.S: New file.
	* sysdeps/powerpc/powerpc32/power5+/fpu/s_trunc.S: New file.
	* sysdeps/powerpc/powerpc32/power5+/fpu/s_truncf.S: New file.
	* sysdeps/powerpc/powerpc64/power5+/fpu/s_ceil.S: New file.
	* sysdeps/powerpc/powerpc64/power5+/fpu/s_ceilf.S: New file.
	* sysdeps/powerpc/powerpc64/power5+/fpu/s_floor.S: New file.
	* sysdeps/powerpc/powerpc64/power5+/fpu/s_floorf.S: New file.
	* sysdeps/powerpc/powerpc64/power5+/fpu/s_round.S: New file.
	* sysdeps/powerpc/powerpc64/power5+/fpu/s_roundf.S: New file.
	* sysdeps/powerpc/powerpc64/power5+/fpu/s_trunc.S: New file.
	* sysdeps/powerpc/powerpc64/power5+/fpu/s_truncf.S: New file.

2006-03-20  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrint.S: New file.
	* sysdeps/powerpc/powerpc32/powerpc64/fpu/s_llrintf.S: New file.

2007-06-01  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/power6/memset.S: New file.
	* sysdeps/powerpc/powerpc64/power6/memset.S: New file.

2007-05-31  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/970/Implies: New file.
	* sysdeps/powerpc/powerpc32/power5/Implies: New file.
	* sysdeps/powerpc/powerpc32/power5+/Implies: New file.
	* sysdeps/powerpc/powerpc32/power6/Implies: New file.
	* sysdeps/powerpc/powerpc32/power6x/Implies: New file.
	* sysdeps/powerpc/powerpc64/970/Implies: New file.
	* sysdeps/powerpc/powerpc64/power5/Implies: New file.
	* sysdeps/powerpc/powerpc64/power5+/Implies: New file.
	* sysdeps/powerpc/powerpc64/power6/Implies: New file.
	* sysdeps/powerpc/powerpc64/power6x/Implies: New file.

2007-05-21  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/power4/memset.S: New file

2007-03-13  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc64/memcpy.S: Improve aligned loop to minimize
	branch miss-predicts. Ensure that cache line crossing does not impact
	dispatch grouping.

2006-12-13  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc64/power4/memcopy.h: Replace with include
	"../../powerpc32/power4/memcopy.h".
	* sysdeps/powerpc/powerpc64/power4/wordcopy.c: Replace with include
	"../../powerpc32/power4/wordcopy.c".

2006-10-03  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/powerpc64/Makefile: Moved.
	* sysdeps/powerpc/powerpc32/powerpc64/memcopy.h: Likewise.
	* sysdeps/powerpc/powerpc32/powerpc64/wordcopy.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/Makefile: To here.
	* sysdeps/powerpc/powerpc32/power4/memcopy.h: Likewise.
	* sysdeps/powerpc/powerpc32/power4/wordcopy.c: Likewise.

2006-09-10  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/power6/memcpy.S: New file.

2006-08-31  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/power6/wordcopy.c: New file.
	* sysdeps/powerpc/powerpc32/powerpc64/Makefile: New file.
	* sysdeps/powerpc/powerpc32/powerpc64/memcopy.h: New file.
	* sysdeps/powerpc/powerpc32/powerpc64/wordcopy.c: New file.
	* sysdeps/powerpc/powerpc64/power4/Makefile: New file.
	* sysdeps/powerpc/powerpc64/power4/memcopy.h: New file.
	* sysdeps/powerpc/powerpc64/power4/wordcopy.c: New file.
	* sysdeps/powerpc/powerpc64/power6/wordcopy.c: New file.

2006-07-06  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc64/power6/memcpy.S: New file.

2006-03-20  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/powerpc32/power4/memcmp.S: New file.
	* sysdeps/powerpc/powerpc32/power4/memcpy.S: New file.
	* sysdeps/powerpc/powerpc32/power4/memset.S: New file.
	* sysdeps/powerpc/powerpc32/power4/strncmp.S: New file.
	* sysdeps/powerpc/powerpc64/power4/memcmp.S: New file.
	* sysdeps/powerpc/powerpc64/power4/memcpy.S: New file.
	* sysdeps/powerpc/powerpc64/power4/strncmp.S: New file.

1 files changed, 842 insertions, 0 deletions

diff --git a/sysdeps/powerpc/powerpc32/power6/memcpy.S b/sysdeps/powerpc/powerpc32/power6/memcpy.S
new file mode 100644
index 0000000000..e8d56eb135
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power6/memcpy.S
@@ -0,0 +1,842 @@
+/* Optimized memcpy implementation for PowerPC32 on POWER6.
+   Copyright (C) 2003, 2006 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, write to the Free
+   Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA
+   02110-1301 USA.  */
+
+#include <sysdep.h>
+#include <bp-sym.h>
+#include <bp-asm.h>
+
+/* __ptr_t [r3] memcpy (__ptr_t dst [r3], __ptr_t src [r4], size_t len [r5]);
+   Returns 'dst'.
+
+   Memcpy handles short copies (< 32-bytes) using a binary move blocks 
+   (no loops) of lwz/stw.  The tail (remaining 1-3) bytes is handled 
+   with the appropriate combination of byte and halfword load/stores. 
+   There is minimal effort to optimize the alignment of short moves.  
+
+   Longer moves (>= 32-bytes) justify the effort to get at least the
+   destination word (4-byte) aligned.  Further optimization is
+   possible when both source and destination are word aligned.
+   Each case has an optimized unrolled loop.   */
+
+EALIGN (BP_SYM (memcpy), 5, 0)
+	CALL_MCOUNT
+
+    stwu   1,-32(1)
+    cfi_adjust_cfa_offset(32)
+    cmplwi cr1,5,31     /* check for short move.  */
+    neg    0,3
+    cmplwi cr1,5,31
+    clrlwi 10,4,30	/* check alignment of src.  */
+    andi.  11,3,3	/* check alignment of dst.  */
+    clrlwi 0,0,30	/* Number of bytes until the 1st word of dst.  */
+    ble-   cr1,L(word_unaligned_short)	/* If move < 32 bytes.  */
+    cmplw  cr6,10,11
+    stw    31,24(1)
+    cfi_offset(31,(24-32))
+    stw    30,20(1)
+    cfi_offset(30,(20-32))
+    mr     30,3
+    beq    .L0
+    mtcrf  0x01,0
+    subf  31,0,5        /* Length after alignment.  */
+    add   12,4,0        /* Compute src addr after alignment.  */
+  /* Move 0-3 bytes as needed to get the destination word aligned.  */
+1:  bf    31,2f
+    lbz   6,0(4)
+    bf    30,3f
+    lhz   7,1(4)
+    stb   6,0(3)
+    sth   7,1(3)
+    addi  3,3,3
+    b     0f
+3:
+    stb   6,0(3)
+    addi  3,3,1
+    b     0f
+2:  bf    30,0f
+    lhz   6,0(4)
+    sth   6,0(3)
+    addi  3,3,2
+0:
+    clrlwi 10,12,30	/* check alignment of src again.  */
+    srwi   9,31,2	/* Number of full words remaining.  */
+    bne-   cr6,L(wdu)   /* If source is not word aligned. .L6 */
+    clrlwi 11,31,30  /* calculate the number of tail bytes */
+    b      L(word_aligned)
+  /* Copy words from source to destination, assuming the destination is 
+     aligned on a word boundary.
+
+     At this point we know there are at least 29 bytes left (32-3) to copy.
+     The next step is to determine if the source is also word aligned. 
+     If not branch to the unaligned move code at .L6. which uses
+     a load, shift, store strategy.
+
+     Otherwise source and destination are word aligned, and we can use
+     the optimized word copy loop.  */
+    .align  4
+.L0:
+    mr     31,5
+    mr     12,4
+    bne-   cr6,L(wdu)   /* If source is not word aligned. .L6 */
+    srwi   9,5,2	/* Number of full words remaining.  */
+    clrlwi 11,5,30      /* calculate the number of tail bytes */
+
+  /* Move words where destination and source are word aligned.
+     Use an unrolled loop to copy 4 words (16-bytes) per iteration.
+     If the the copy is not an exact multiple of 16 bytes, 1-3 
+     words are copied as needed to set up the main loop.  After
+     the main loop exits there may be a tail of 1-3 bytes. These bytes are 
+     copied a halfword/byte at a time as needed to preserve alignment.  */
+L(word_aligned):
+    mtcrf 0x01,9
+    srwi  8,31,4    /* calculate the 16 byte loop count */
+    cmplwi	cr1,9,4
+    cmplwi	cr6,11,0
+    mr    11,12
+
+    bf    30,1f
+    lwz   6,0(12)
+    lwz   7,4(12)
+    addi  11,12,8
+    mtctr 8
+    stw   6,0(3)
+    stw   7,4(3)
+    addi  10,3,8
+    bf    31,4f
+    lwz   0,8(12)
+    stw   0,8(3)    
+    blt   cr1,3f
+    addi  11,12,12
+    addi  10,3,12
+    b     4f
+    .align  4
+1:
+    mr    10,3
+    mtctr 8
+    bf    31,4f
+    lwz   6,0(12)
+    addi  11,12,4
+    stw   6,0(3)
+    addi  10,3,4
+    
+    .align  4
+4:
+    lwz   6,0(11)
+    lwz   7,4(11)
+    lwz   8,8(11)
+    lwz   0,12(11)
+    stw   6,0(10)
+    stw   7,4(10)
+    stw   8,8(10)
+    stw   0,12(10)
+    addi  11,11,16
+    addi  10,10,16
+    bdnz  4b
+3:  
+    clrrwi 0,31,2
+    mtcrf 0x01,31
+    beq   cr6,0f
+.L9:
+    add   3,3,0
+    add   12,12,0
+    
+/*  At this point we have a tail of 0-3 bytes and we know that the
+    destination is word aligned.  */
+2:  bf    30,1f
+    lhz   6,0(12)
+    addi  12,12,2
+    sth   6,0(3)
+    addi  3,3,2
+1:  bf    31,0f
+    lbz   6,0(12)
+    stb   6,0(3)
+0:
+  /* Return original dst pointer.  */
+    mr  3,30
+    lwz 30,20(1)
+    lwz 31,24(1)
+    addi 1,1,32
+    blr
+
+/* Copy up to 31 bytes.  This divided into two cases 0-8 bytes and 9-31 
+   bytes.  Each case is handled without loops, using binary (1,2,4,8)
+   tests.
+
+   In the short (0-8 byte) case no attempt is made to force alignment
+   of either source or destination.  The hardware will handle the
+   unaligned load/stores with small delays for crossing 32- 128-byte,
+   and 4096-byte boundaries. Since these short moves are unlikely to be
+   unaligned or cross these boundaries, the overhead to force
+   alignment is not justified.
+
+   The longer (9-31 byte) move is more likely to cross 32- or 128-byte
+   boundaries.  Since only loads are sensitive to the 32-/128-byte
+   boundaries it is more important to align the source then the
+   destination.  If the source is not already word aligned, we first
+   move 1-3 bytes as needed.  Since we are only word aligned we don't
+   use double word load/stores to insure that all loads are aligned.
+   While the destination and stores may still be unaligned, this
+   is only an issue for page (4096 byte boundary) crossing, which
+   should be rare for these short moves.  The hardware handles this
+   case automatically with a small (~20 cycle) delay.  */
+    .align  4
+
+    cfi_same_value (31)
+    cfi_same_value (30)
+L(word_unaligned_short):
+    mtcrf 0x01,5
+    cmplwi cr6,5,8
+    neg   8,4
+    clrrwi	9,4,2
+    andi. 0,8,3
+    beq   cr6,L(wus_8)	/* Handle moves of 8 bytes.  */
+/* At least 9 bytes left.  Get the source word aligned.  */
+    cmpldi	cr1,5,16
+    mr    12,4
+    ble   cr6,L(wus_4)  /* Handle moves of 0-8 bytes.  */
+    mr    11,3
+    mr    10,5
+    cmplwi	cr6,0,2
+    beq   L(wus_tail)	/* If the source is already word aligned skip this.  */
+/* Copy 1-3 bytes to get source address word aligned.  */
+    lwz   6,0(9)
+    subf  10,0,5
+    add   12,4,0
+    blt   cr6,5f
+    srdi  7,6,16
+    bgt	  cr6,3f
+    sth   6,0(3)
+    b     7f
+    .align  4
+3:
+    stb   7,0(3)
+    sth   6,1(3)
+    b     7f
+    .align  4
+5:
+    stb   6,0(3)
+7:
+    cmplwi	cr1,10,16
+    add   11,3,0
+    mtcrf 0x01,10
+    .align  4
+L(wus_tail):
+/* At least 6 bytes left and the source is word aligned.  This allows
+   some speculative loads up front.  */
+/* We need to special case the fall-through because the biggest delays
+   are due to address computation not being ready in time for the 
+   AGEN.  */
+    lwz   6,0(12)
+    lwz   7,4(12)
+    blt   cr1,L(wus_tail8)
+    cmplwi	cr0,10,24
+L(wus_tail16): /* Move 16 bytes.  */
+    stw   6,0(11)
+    stw   7,4(11)
+    lwz   6,8(12)
+    lwz   7,12(12)
+    stw   6,8(11)
+    stw   7,12(11)
+/* Move 8 bytes more.  */
+    bf    28,L(wus_tail16p8)
+    cmplwi	cr1,10,28
+    lwz   6,16(12)
+    lwz   7,20(12)
+    stw   6,16(11)
+    stw   7,20(11)
+/* Move 4 bytes more.  */
+    bf    29,L(wus_tail16p4)
+    lwz   6,24(12)
+    stw   6,24(11)
+    addi  12,12,28
+    addi  11,11,28
+    bgt   cr1,L(wus_tail2)
+ /* exactly 28 bytes.  Return original dst pointer and exit.  */
+    addi  1,1,32
+    blr
+    .align  4
+L(wus_tail16p8):  /* less then 8 bytes left.  */
+    beq   cr1,L(wus_tailX) /* exactly 16 bytes, early exit.  */
+    cmplwi	cr1,10,20
+    bf    29,L(wus_tail16p2)
+/* Move 4 bytes more.  */
+    lwz   6,16(12)
+    stw   6,16(11)
+    addi  12,12,20
+    addi  11,11,20
+    bgt   cr1,L(wus_tail2)
+ /* exactly 20 bytes.  Return original dst pointer and exit.  */
+    addi  1,1,32
+    blr
+    .align  4
+L(wus_tail16p4):  /* less then 4 bytes left.  */
+    addi  12,12,24
+    addi  11,11,24
+    bgt   cr0,L(wus_tail2)
+ /* exactly 24 bytes.  Return original dst pointer and exit.  */
+    addi  1,1,32
+    blr
+    .align  4
+L(wus_tail16p2):  /* 16 bytes moved, less then 4 bytes left.  */
+    addi  12,12,16
+    addi  11,11,16
+    b     L(wus_tail2)
+
+    .align  4
+L(wus_tail8):  /* Move 8 bytes.  */
+/*  r6, r7 already loaded speculatively.  */
+    cmplwi	cr1,10,8
+    cmplwi	cr0,10,12
+    bf    28,L(wus_tail4)
+    stw   6,0(11)
+    stw   7,4(11)
+/* Move 4 bytes more.  */
+    bf    29,L(wus_tail8p4)
+    lwz   6,8(12)
+    stw   6,8(11)
+    addi  12,12,12
+    addi  11,11,12
+    bgt   cr0,L(wus_tail2)
+ /* exactly 12 bytes.  Return original dst pointer and exit.  */
+    addi  1,1,32
+    blr
+    .align  4
+L(wus_tail8p4):  /* less then 4 bytes left.  */
+    addi  12,12,8
+    addi  11,11,8
+    bgt   cr1,L(wus_tail2)
+ /* exactly 8 bytes.  Return original dst pointer and exit.  */
+    addi  1,1,32
+    blr
+
+    .align  4
+L(wus_tail4):  /* Move 4 bytes.  */
+/*  r6 already loaded speculatively.  If we are here we know there is
+    more then 4 bytes left.  So there is no need to test.  */
+    addi  12,12,4
+    stw   6,0(11)
+    addi  11,11,4
+L(wus_tail2):  /* Move 2-3 bytes.  */
+    bf    30,L(wus_tail1)
+    lhz   6,0(12)
+    sth   6,0(11) 
+    bf    31,L(wus_tailX)
+    lbz   7,2(12)
+    stb   7,2(11)
+    addi  1,1,32
+    blr
+L(wus_tail1):  /* Move 1 byte.  */
+    bf    31,L(wus_tailX)
+    lbz   6,0(12)
+    stb   6,0(11)
+L(wus_tailX):
+  /* Return original dst pointer.  */
+    addi  1,1,32
+    blr
+
+/* Special case to copy 0-8 bytes.  */
+    .align  4
+L(wus_8):
+    lwz   6,0(4)
+    lwz   7,4(4)
+    stw   6,0(3)
+    stw   7,4(3)
+  /* Return original dst pointer.  */
+    addi  1,1,32
+    blr
+    .align  4
+L(wus_4):
+    bf    29,L(wus_2)
+    lwz   6,0(4)
+    stw   6,0(3)
+    bf    30,L(wus_5)
+    lhz   7,4(4)
+    sth   7,4(3) 
+    bf    31,L(wus_0)
+    lbz   8,6(4)
+    stb   8,6(3)
+    addi  1,1,32
+    blr
+    .align  4
+L(wus_5):
+    bf    31,L(wus_0)
+    lbz   6,4(4)
+    stb   6,4(3)
+  /* Return original dst pointer.  */
+    addi 1,1,32
+    blr
+    .align  4
+L(wus_2):  /* Move 2-3 bytes.  */
+    bf    30,L(wus_1)
+    lhz   6,0(4)
+    sth   6,0(3) 
+    bf    31,L(wus_0)
+    lbz   7,2(4)
+    stb   7,2(3)
+    addi  1,1,32
+    blr
+    .align  4
+L(wus_1):  /* Move 1 byte.  */
+    bf    31,L(wus_0)
+    lbz   6,0(4)
+    stb   6,0(3)
+    .align  3
+L(wus_0):
+  /* Return original dst pointer.  */
+    addi  1,1,32
+    blr
+
+    .align  4
+    cfi_offset(31,(24-32))
+    cfi_offset(30,(20-32))
+L(wdu):
+
+  /* Copy words where the destination is aligned but the source is
+     not.  For power4, power5 and power6 machines there is penalty for
+     unaligned loads (src) that cross 32-byte, cacheline, or page 
+     boundaries. So we want to use simple (unaligned) loads where
+     posible but avoid them where we know the load would span a 32-byte
+     boundary. 
+
+     At this point we know we have at least 29 (32-3) bytes to copy
+     the src is unaligned. and we may cross at least one 32-byte 
+     boundary. Also we have the following regester values:
+     r3 == adjusted dst, word aligned
+     r4 == unadjusted src
+     r5 == unadjusted len
+     r9 == adjusted Word length
+     r10 == src alignment (1-3)
+     r12 == adjuested src, not aligned
+     r31 == adjusted len
+
+     First we need to copy word upto but not crossing the next 32-byte
+     boundary. Then perform aligned loads just before and just after 
+     the boundary and use shifts and or to gernerate the next aligned
+     word for dst. If more then 32 bytes remain we copy (unaligned src)
+     the next 7 words and repeat the loop until less then 32-bytes
+     remaim.
+
+     Then if more then 4 bytes remain we again use aligned loads,
+     shifts and or to generate the next dst word. We then process the
+     remaining words using unaligned loads as needed. Finally we check
+     if there more then 0 bytes (1-3) bytes remainting and use
+     halfword and or byte load/stores to complete the copy.
+*/
+    mr      4,12      /* restore unaligned adjusted src ptr */
+    clrlwi  0,12,27   /* Find dist from previous 32-byte boundary.  */
+    slwi    10,10,3   /* calculate number of bits to shift 1st word left */
+    cmplwi  cr5,0,16   
+    subfic  8,0,32   /* Number of bytes to next 32-byte boundary.  */
+
+    mtcrf   0x01,8
+    cmplwi  cr1,10,16
+    subfic  9,10,32  /* number of bits to shift 2nd word right */
+/*  This test is reversed because the timing to compare the bytes to
+    32-byte boundary could not be meet.  So we compare the bytes from
+    previous 32-byte boundary and invert the test.  */
+    bge     cr5,L(wdu_h32_8)
+    .align  4
+    lwz   6,0(4)
+    lwz   7,4(4)
+    addi  12,4,16    /* generate alternate pointers to avoid agen */
+    addi  11,3,16    /* timing issues downstream.  */
+    stw   6,0(3)
+    stw   7,4(3)
+    subi  31,31,16
+    lwz   6,8(4)
+    lwz   7,12(4)
+    addi  4,4,16
+    stw   6,8(3)
+    stw   7,12(3)
+    addi  3,3,16
+    bf    28,L(wdu_h32_4)
+    lwz   6,0(12)
+    lwz   7,4(12)
+    subi  31,31,8
+    addi  4,4,8
+    stw   6,0(11)
+    stw   7,4(11)
+    addi  3,3,8
+    bf    29,L(wdu_h32_0)
+    lwz   6,8(12)
+    addi  4,4,4
+    subi  31,31,4
+    stw   6,8(11)
+    addi  3,3,4
+    b     L(wdu_h32_0)
+    .align  4
+L(wdu_h32_8):
+    bf    28,L(wdu_h32_4)
+    lwz   6,0(4)
+    lwz   7,4(4)
+    subi  31,31,8
+    bf    29,L(wdu_h32_8x)
+    stw   6,0(3)
+    stw   7,4(3)
+    lwz   6,8(4)
+    addi  4,4,12
+    subi  31,31,4
+    stw   6,8(3)
+    addi  3,3,12
+    b     L(wdu_h32_0)
+    .align  4
+L(wdu_h32_8x):
+    addi  4,4,8
+    stw   6,0(3)
+    stw   7,4(3)
+    addi  3,3,8
+    b     L(wdu_h32_0)
+    .align  4
+L(wdu_h32_4):
+    bf    29,L(wdu_h32_0)
+    lwz   6,0(4)
+    subi  31,31,4
+    addi  4,4,4
+    stw   6,0(3)
+    addi  3,3,4
+    .align  4
+L(wdu_h32_0):
+/*  set up for 32-byte boundry crossing word move and possibly 32-byte
+    move loop.  */
+    clrrwi  12,4,2
+    cmplwi  cr5,31,32
+    bge     cr1,L(wdu2_32)
+#if 0
+    b       L(wdu1_32)
+/*
+    cmplwi  cr1,10,8
+    beq     cr1,L(wdu1_32)
+    cmplwi  cr1,10,16
+    beq     cr1,L(wdu2_32)
+    cmplwi  cr1,10,24
+    beq     cr1,L(wdu3_32)
+*/
+L(wdu_32):
+    lwz     6,0(12)
+    cmplwi  cr6,31,4
+    srwi    8,31,5    /* calculate the 32 byte loop count */
+    slw     0,6,10 
+    clrlwi  31,31,27   /* The remaining bytes, < 32.  */
+    blt     cr5,L(wdu_32tail)
+    mtctr   8
+    cmplwi  cr6,31,4
+    .align  4
+L(wdu_loop32):
+    /* copy 32 bytes at a time */
+    lwz   8,4(12)
+    addi  12,12,32
+    lwz   7,4(4)
+    srw   8,8,9 
+    or    0,0,8
+    stw   0,0(3)
+    stw   7,4(3)
+    lwz   6,8(4)
+    lwz   7,12(4)
+    stw   6,8(3)
+    stw   7,12(3)
+    lwz   6,16(4)
+    lwz   7,20(4)
+    stw   6,16(3)
+    stw   7,20(3)
+    lwz   6,24(4)
+    lwz   7,28(4)
+    lwz   8,0(12)
+    addi  4,4,32
+    stw   6,24(3)
+    stw   7,28(3)
+    addi  3,3,32
+    slw   0,8,10 
+    bdnz+ L(wdu_loop32)
+
+L(wdu_32tail):
+    mtcrf   0x01,31
+    cmplwi  cr5,31,16
+    blt     cr6,L(wdu_4tail)
+    /* calculate and store the final word */
+    lwz   8,4(12)
+    srw   8,8,9 
+    or    6,0,8
+    b     L(wdu_32tailx)
+#endif
+    .align  4
+L(wdu1_32):
+    lwz     6,-1(4)
+    cmplwi  cr6,31,4
+    srwi    8,31,5    /* calculate the 32 byte loop count */
+    slwi    6,6,8
+    clrlwi  31,31,27   /* The remaining bytes, < 32.  */
+    blt     cr5,L(wdu1_32tail)
+    mtctr   8
+    cmplwi  cr6,31,4
+
+    lwz   8,3(4)
+    lwz   7,4(4)
+/*  Equivalent to: srwi   8,8,32-8;  or    6,6,8 */
+    rlwimi 6,8,8,(32-8),31
+    b      L(wdu1_loop32x)
+    .align  4
+L(wdu1_loop32):
+    /* copy 32 bytes at a time */
+    lwz   8,3(4)
+    lwz   7,4(4)
+    stw   10,-8(3)
+    stw   11,-4(3)
+/*  Equivalent to  srwi   8,8,32-8; or    6,6,8 */
+    rlwimi 6,8,8,(32-8),31
+L(wdu1_loop32x):
+    lwz   10,8(4)
+    lwz   11,12(4)
+    stw   6,0(3)
+    stw   7,4(3)
+    lwz   6,16(4)
+    lwz   7,20(4)
+    stw   10,8(3)
+    stw   11,12(3)
+    lwz   10,24(4)
+    lwz   11,28(4)
+    lwz   8,32-1(4)
+    addi  4,4,32
+    stw   6,16(3)
+    stw   7,20(3)
+    addi  3,3,32
+    slwi  6,8,8
+    bdnz+ L(wdu1_loop32)
+    stw   10,-8(3)
+    stw   11,-4(3)
+
+L(wdu1_32tail):
+    mtcrf   0x01,31
+    cmplwi  cr5,31,16
+    blt     cr6,L(wdu_4tail)
+    /* calculate and store the final word */
+    lwz   8,3(4)
+/*  Equivalent to: srwi   8,8,32-9;  or    6,6,8  */
+    rlwimi 6,8,8,(32-8),31
+    b     L(wdu_32tailx)
+
+L(wdu2_32):
+    bgt     cr1,L(wdu3_32)
+    lwz     6,-2(4)
+    cmplwi  cr6,31,4
+    srwi    8,31,5    /* calculate the 32 byte loop count */
+    slwi    6,6,16
+    clrlwi  31,31,27   /* The remaining bytes, < 32.  */
+    blt     cr5,L(wdu2_32tail)
+    mtctr   8
+    cmplwi  cr6,31,4
+
+    lwz   8,2(4)
+    lwz   7,4(4)
+/*  Equivalent to: srwi   8,8,32-8;  or    6,6,8 */
+    rlwimi 6,8,16,(32-16),31
+    b      L(wdu2_loop32x)
+    .align  4
+L(wdu2_loop32):
+    /* copy 32 bytes at a time */
+    lwz   8,2(4)
+    lwz   7,4(4)
+    stw   10,-8(3)
+    stw   11,-4(3)
+/*  Equivalent to  srwi   8,8,32-8; or    6,6,8 */
+    rlwimi 6,8,16,(32-16),31
+L(wdu2_loop32x):
+    lwz   10,8(4)
+    lwz   11,12(4)
+    stw   6,0(3)
+    stw   7,4(3)
+    lwz   6,16(4)
+    lwz   7,20(4)
+    stw   10,8(3)
+    stw   11,12(3)
+    lwz   10,24(4)
+    lwz   11,28(4)
+/*    lwz   8,0(12) */
+    lwz   8,32-2(4)
+    addi  4,4,32
+    stw   6,16(3)
+    stw   7,20(3)
+    addi  3,3,32
+    slwi  6,8,16
+    bdnz+ L(wdu2_loop32)
+    stw   10,-8(3)
+    stw   11,-4(3)
+
+L(wdu2_32tail):
+    mtcrf   0x01,31
+    cmplwi  cr5,31,16
+    blt     cr6,L(wdu_4tail)
+    /* calculate and store the final word */
+    lwz   8,2(4)
+/*  Equivalent to: srwi   8,8,32-9;  or    6,6,8  */
+    rlwimi 6,8,16,(32-16),31
+    b     L(wdu_32tailx)
+
+L(wdu3_32):
+/*    lwz     6,0(12) */
+    lwz     6,-3(4)
+    cmplwi  cr6,31,4
+    srwi    8,31,5    /* calculate the 32 byte loop count */
+    slwi    6,6,24
+    clrlwi  31,31,27   /* The remaining bytes, < 32.  */
+    blt     cr5,L(wdu3_32tail)
+    mtctr   8
+    cmplwi  cr6,31,4
+
+    lwz   8,1(4)
+    lwz   7,4(4)
+/*  Equivalent to: srwi   8,8,32-8;  or    6,6,8 */
+    rlwimi 6,8,24,(32-24),31
+    b      L(wdu3_loop32x)
+    .align  4
+L(wdu3_loop32):
+    /* copy 32 bytes at a time */
+    lwz   8,1(4)
+    lwz   7,4(4)
+    stw   10,-8(3)
+    stw   11,-4(3)
+/*  Equivalent to  srwi   8,8,32-8; or    6,6,8 */
+    rlwimi 6,8,24,(32-24),31
+L(wdu3_loop32x):
+    lwz   10,8(4)
+    lwz   11,12(4)
+    stw   6,0(3)
+    stw   7,4(3)
+    lwz   6,16(4)
+    lwz   7,20(4)
+    stw   10,8(3)
+    stw   11,12(3)
+    lwz   10,24(4)
+    lwz   11,28(4)
+    lwz   8,32-3(4)
+    addi  4,4,32
+    stw   6,16(3)
+    stw   7,20(3)
+    addi  3,3,32
+    slwi  6,8,24
+    bdnz+ L(wdu3_loop32)
+    stw   10,-8(3)
+    stw   11,-4(3)
+
+L(wdu3_32tail):
+    mtcrf   0x01,31
+    cmplwi  cr5,31,16
+    blt     cr6,L(wdu_4tail)
+    /* calculate and store the final word */
+    lwz   8,1(4)
+/*  Equivalent to: srwi   8,8,32-9;  or    6,6,8  */
+    rlwimi 6,8,24,(32-24),31
+    b     L(wdu_32tailx)
+    .align  4
+L(wdu_32tailx):
+    blt     cr5,L(wdu_t32_8)
+    lwz   7,4(4)
+    addi  12,4,16    /* generate alternate pointers to avoid agen */
+    addi  11,3,16    /* timing issues downstream.  */
+    stw   6,0(3)
+    stw   7,4(3)
+    subi  31,31,16
+    lwz   6,8(4)
+    lwz   7,12(4)
+    addi  4,4,16
+    stw   6,8(3)
+    stw   7,12(3)
+    addi  3,3,16
+    bf    28,L(wdu_t32_4x)
+    lwz   6,0(12)
+    lwz   7,4(12)
+    addi  4,4,8
+    subi  31,31,8
+    stw   6,0(11)
+    stw   7,4(11)
+    addi  3,3,8
+    bf    29,L(wdu_t32_0)
+    lwz   6,8(12)
+    addi  4,4,4
+    subi  31,31,4
+    stw   6,8(11)
+    addi  3,3,4
+    b     L(wdu_t32_0)
+    .align  4
+L(wdu_t32_4x):
+    bf    29,L(wdu_t32_0)
+    lwz   6,0(4)
+    addi  4,4,4
+    subi  31,31,4
+    stw   6,0(3)
+    addi  3,3,4
+    b     L(wdu_t32_0)
+    .align  4
+L(wdu_t32_8):
+    bf    28,L(wdu_t32_4)
+    lwz   7,4(4)
+    subi  31,31,8
+    bf    29,L(wdu_t32_8x)
+    stw   6,0(3)
+    stw   7,4(3)
+    lwz   6,8(4)
+    subi  31,31,4
+    addi  4,4,12
+    stw   6,8(3)
+    addi  3,3,12
+    b     L(wdu_t32_0)
+    .align  4
+L(wdu_t32_8x):
+    addi  4,4,8
+    stw   6,0(3)
+    stw   7,4(3)
+    addi  3,3,8
+    b     L(wdu_t32_0)
+    .align  4
+L(wdu_t32_4):
+    subi  31,31,4
+    stw   6,0(3)
+    addi  4,4,4
+    addi  3,3,4
+    .align  4
+L(wdu_t32_0):
+L(wdu_4tail):
+    cmplwi  cr6,31,0
+    beq   cr6,L(wdus_0)	/* If the tail is 0 bytes we are done!  */
+    bf    30,L(wdus_3)
+    lhz   7,0(4)
+    sth   7,0(3) 
+    bf    31,L(wdus_0)
+    lbz   8,2(4)
+    stb   8,2(3)
+    mr    3,30
+    lwz   30,20(1)
+    lwz   31,24(1)
+    addi  1,1,32
+    blr
+    .align  4
+L(wdus_3):
+    bf    31,L(wus_0)
+    lbz   6,0(4)
+    stb   6,0(3)
+    .align  4
+L(wdus_0):
+  /* Return original dst pointer.  */
+    mr   3,30
+    lwz  30,20(1)
+    lwz  31,24(1)
+    addi 1,1,32
+    blr
+END (BP_SYM (memcpy))
+
+libc_hidden_builtin_def (memcpy)