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GNU C Library master sources branch, master, updated. glibc-2.11-154-gd6ac932


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http://sources.redhat.com/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=d6ac9329b3baf72e1f7a6dfd10ff5236668c2d10

commit d6ac9329b3baf72e1f7a6dfd10ff5236668c2d10
Author: Ulrich Drepper <drepper@redhat.com>
Date:   Mon Jan 18 12:43:47 2010 -0800

    Fix whitespace issues.

diff --git a/sysdeps/powerpc/powerpc32/cell/memcpy.S b/sysdeps/powerpc/powerpc32/cell/memcpy.S
index e6c076c..cc1da99 100644
--- a/sysdeps/powerpc/powerpc32/cell/memcpy.S
+++ b/sysdeps/powerpc/powerpc32/cell/memcpy.S
@@ -43,16 +43,16 @@
 .align  7
 
 EALIGN (BP_SYM (memcpy), 5, 0)
-        CALL_MCOUNT
+	CALL_MCOUNT
 
 	dcbt	0,r4		/* Prefetch ONE SRC cacheline  */
 	cmplwi	cr1,r5,16	/* is size < 16 ?  */
-	mr	r6,r3		
+	mr	r6,r3
 	blt+	cr1,.Lshortcopy
 
 .Lbigcopy:
 	neg	r8,r3		/* LS 3 bits = # bytes to 8-byte dest bdry  */
-        clrlwi  r8,r8,32-4	/* aling to 16byte boundary  */
+	clrlwi  r8,r8,32-4	/* aling to 16byte boundary  */
 	sub     r7,r4,r3
 	cmplwi	cr0,r8,0
 	beq+	.Ldst_aligned
@@ -112,8 +112,8 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 
 .LprefetchSRC:
 	dcbt    r12,r4
-        addi    r12,r12,128
-        bdnz    .LprefetchSRC
+	addi    r12,r12,128
+	bdnz    .LprefetchSRC
 
 .Lnocacheprefetch:
 	mtctr	r7
@@ -122,7 +122,7 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 	beq	cr6,.Lcachelinealigned
 
 .Laligntocacheline:
-	lfd 	fp9,0x08(r4)
+	lfd	fp9,0x08(r4)
 	lfdu	fp10,0x10(r4)
 	stfd	fp9,0x08(r6)
 	stfdu	fp10,0x10(r6)
@@ -131,10 +131,10 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 
 .Lcachelinealigned:		/* copy while cache lines  */
 
-	blt- 	cr1,.Llessthancacheline	/* size <128  */
+	blt-	cr1,.Llessthancacheline	/* size <128  */
 
 .Louterloop:
-        cmpwi   r11,0
+	cmpwi   r11,0
 	mtctr	r11
 	beq-	.Lendloop
 
@@ -142,7 +142,7 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 
 .align	4
 	/* Copy whole cachelines, optimized by prefetching SRC cacheline  */
-.Lloop: 			/* Copy aligned body  */
+.Lloop:				/* Copy aligned body  */
 	dcbt	r12,r4		/* PREFETCH SOURCE some cache lines ahead  */
 	lfd	fp9, 0x08(r4)
 	dcbz	r11,r6
@@ -186,7 +186,7 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 	beq-	.Lendloop2
 	mtctr	r10
 
-.Lloop2: 			/* Copy aligned body  */
+.Lloop2:			/* Copy aligned body  */
 	lfd	fp9, 0x08(r4)
 	lfd	fp10, 0x10(r4)
 	lfd	fp11, 0x18(r4)
@@ -206,7 +206,7 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 	mtctr	r7
 
 .Lcopy_remaining:
-	lfd 	fp9,0x08(r4)
+	lfd	fp9,0x08(r4)
 	lfdu	fp10,0x10(r4)
 	stfd	fp9,0x08(r6)
 	stfdu	fp10,0x10(r6)
@@ -214,7 +214,7 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 
 .Ldo_lt16:			/* less than 16 ?  */
 	cmplwi	cr0,r5,0	/* copy remaining bytes (0-15)  */
-	beqlr+			/* no rest to copy  */	
+	beqlr+			/* no rest to copy  */
 	addi	r4,r4,8
 	addi	r6,r6,8
 
diff --git a/sysdeps/powerpc/powerpc64/cell/memcpy.S b/sysdeps/powerpc/powerpc64/cell/memcpy.S
index 2a00a6e..c6ee730 100644
--- a/sysdeps/powerpc/powerpc64/cell/memcpy.S
+++ b/sysdeps/powerpc/powerpc64/cell/memcpy.S
@@ -43,16 +43,16 @@
 .align  7
 
 EALIGN (BP_SYM (memcpy), 5, 0)
-        CALL_MCOUNT 3
+	CALL_MCOUNT 3
 
 	dcbt	0,r4		/* Prefetch ONE SRC cacheline  */
 	cmpldi	cr1,r5,16	/* is size < 16 ?  */
-	mr	r6,r3		
+	mr	r6,r3
 	blt+	cr1,.Lshortcopy
 
 .Lbigcopy:
 	neg	r8,r3		/* LS 3 bits = # bytes to 8-byte dest bdry  */
-        clrldi  r8,r8,64-4	/* aling to 16byte boundary  */
+	clrldi  r8,r8,64-4	/* aling to 16byte boundary  */
 	sub     r7,r4,r3
 	cmpldi	cr0,r8,0
 	beq+	.Ldst_aligned
@@ -112,8 +112,8 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 
 .LprefetchSRC:
 	dcbt    r12,r4
-        addi    r12,r12,128
-        bdnz    .LprefetchSRC
+	addi    r12,r12,128
+	bdnz    .LprefetchSRC
 
 .Lnocacheprefetch:
 	mtctr	r7
@@ -122,7 +122,7 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 	beq	cr6,.Lcachelinealigned
 
 .Laligntocacheline:
-	ld 	r9,0x08(r4)
+	ld	r9,0x08(r4)
 	ldu	r7,0x10(r4)
 	std	r9,0x08(r6)
 	stdu	r7,0x10(r6)
@@ -131,10 +131,10 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 
 .Lcachelinealigned:		/* copy while cache lines  */
 
-	blt- 	cr1,.Llessthancacheline	/* size <128  */
+	blt-	cr1,.Llessthancacheline	/* size <128  */
 
 .Louterloop:
-        cmpdi   r11,0
+	cmpdi   r11,0
 	mtctr	r11
 	beq-	.Lendloop
 
@@ -142,7 +142,7 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 
 .align	4
 	/* Copy whole cachelines, optimized by prefetching SRC cacheline  */
-.Lloop: 			/* Copy aligned body  */
+.Lloop:				/* Copy aligned body  */
 	dcbt	r12,r4		/* PREFETCH SOURCE some cache lines ahead  */
 	ld	r9, 0x08(r4)
 	dcbz	r11,r6
@@ -186,7 +186,7 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 	beq-	.Lendloop2
 	mtctr	r10
 
-.Lloop2: 			/* Copy aligned body  */
+.Lloop2:			/* Copy aligned body  */
 	ld	r9, 0x08(r4)
 	ld	r7, 0x10(r4)
 	ld	r8, 0x18(r4)
@@ -206,7 +206,7 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 	mtctr	r7
 
 .Lcopy_remaining:
-	ld 	r8,0x08(r4)
+	ld	r8,0x08(r4)
 	ldu	r7,0x10(r4)
 	std	r8,0x08(r6)
 	stdu	r7,0x10(r6)
@@ -214,7 +214,7 @@ EALIGN (BP_SYM (memcpy), 5, 0)
 
 .Ldo_lt16:			/* less than 16 ?  */
 	cmpldi	cr0,r5,0	/* copy remaining bytes (0-15)  */
-	beqlr+			/* no rest to copy  */	
+	beqlr+			/* no rest to copy  */
 	addi	r4,r4,8
 	addi	r6,r6,8
 

http://sources.redhat.com/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=057edf90e015117bcb7c7cf2e895359e7244dbf8

commit 057edf90e015117bcb7c7cf2e895359e7244dbf8
Author: Ulrich Drepper <drepper@redhat.com>
Date:   Mon Jan 18 12:40:29 2010 -0800

    memcpy for ppc/cell.

diff --git a/ChangeLog b/ChangeLog
index 92ed81c..8f6695b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,10 @@
+2010-01-14  Ryan S. Arnold  <rsa@us.ibm.com>
+
+	* sysdeps/powerpc/powerpc32/cell/memcpy.S: New file.
+	* sysdeps/powerpc/powerpc64/cell/memcpy.S: New file.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc32/cell/fpu/Implies: New file.
+	* sysdeps/unix/sysv/linux/powerpc/powerpc64/cell/fpu/Implies: New file.
+
 2010-01-18  Andreas Schwab  <schwab@redhat.com>
 
 	* sysdeps/unix/sysv/linux/sparc/bits/fcntl.h: Remove duplicate
diff --git a/sysdeps/powerpc/powerpc32/cell/memcpy.S b/sysdeps/powerpc/powerpc32/cell/memcpy.S
new file mode 100644
index 0000000..e6c076c
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/cell/memcpy.S
@@ -0,0 +1,245 @@
+/* Optimized memcpy implementation for CELL BE PowerPC.
+   Copyright (C) 2010 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., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+#include <bp-sym.h>
+#include <bp-asm.h>
+
+#define PREFETCH_AHEAD 6	/* no cache lines SRC prefetching ahead  */
+#define ZERO_AHEAD 4		/* no cache lines DST zeroing ahead  */
+
+/* memcpy routine optimized for CELL-BE-PPC	v2.0
+ *
+ * The CELL PPC core has 1 integer unit and 1 load/store unit
+ * CELL:
+ * 1st level data cache = 32K
+ * 2nd level data cache = 512K
+ * 3rd level data cache = 0K
+ * With 3.2 GHz clockrate the latency to 2nd level cache is >36 clocks,
+ * latency to memory is >400 clocks
+ * To improve copy performance we need to prefetch source data
+ * far ahead to hide this latency
+ * For best performance instructionforms ending in "." like "andi."
+ * should be avoided as the are implemented in microcode on CELL.
+ * The below code is loop unrolled for the CELL cache line of 128 bytes
+ */
+
+.align  7
+
+EALIGN (BP_SYM (memcpy), 5, 0)
+        CALL_MCOUNT
+
+	dcbt	0,r4		/* Prefetch ONE SRC cacheline  */
+	cmplwi	cr1,r5,16	/* is size < 16 ?  */
+	mr	r6,r3		
+	blt+	cr1,.Lshortcopy
+
+.Lbigcopy:
+	neg	r8,r3		/* LS 3 bits = # bytes to 8-byte dest bdry  */
+        clrlwi  r8,r8,32-4	/* aling to 16byte boundary  */
+	sub     r7,r4,r3
+	cmplwi	cr0,r8,0
+	beq+	.Ldst_aligned
+
+.Ldst_unaligned:
+	mtcrf	0x01,r8		/* put #bytes to boundary into cr7  */
+	subf	r5,r8,r5
+
+	bf	cr7*4+3,1f
+	lbzx	r0,r7,r6	/* copy 1 byte  */
+	stb	r0,0(r6)
+	addi	r6,r6,1
+1:	bf	cr7*4+2,2f
+	lhzx	r0,r7,r6	/* copy 2 byte  */
+	sth	r0,0(r6)
+	addi	r6,r6,2
+2:	bf	cr7*4+1,4f
+	lwzx	r0,r7,r6	/* copy 4 byte  */
+	stw	r0,0(r6)
+	addi	r6,r6,4
+4:	bf	cr7*4+0,8f
+	lfdx	fp9,r7,r6	/* copy 8 byte  */
+	stfd	fp9,0(r6)
+	addi	r6,r6,8
+8:
+	add	r4,r7,r6
+
+.Ldst_aligned:
+
+	cmpwi	cr5,r5,128-1
+
+	neg	r7,r6
+	addi	r6,r6,-8	/* prepare for stfdu  */
+	addi	r4,r4,-8	/* prepare for lfdu  */
+
+	clrlwi  r7,r7,32-7	/* align to cacheline boundary  */
+	ble+	cr5,.Llessthancacheline
+
+	cmplwi	cr6,r7,0
+	subf	r5,r7,r5
+	srwi	r7,r7,4		/* divide size by 16  */
+	srwi	r10,r5,7	/* number of cache lines to copy  */
+
+	cmplwi	r10,0
+	li	r11,0		/* number cachelines to copy with prefetch  */
+	beq	.Lnocacheprefetch
+
+	cmplwi	r10,PREFETCH_AHEAD
+	li	r12,128+8	/* prefetch distance  */
+	ble	.Llessthanmaxprefetch
+
+	subi	r11,r10,PREFETCH_AHEAD
+	li	r10,PREFETCH_AHEAD
+
+.Llessthanmaxprefetch:
+	mtctr	r10
+
+.LprefetchSRC:
+	dcbt    r12,r4
+        addi    r12,r12,128
+        bdnz    .LprefetchSRC
+
+.Lnocacheprefetch:
+	mtctr	r7
+	cmplwi	cr1,r5,128
+	clrlwi  r5,r5,32-7
+	beq	cr6,.Lcachelinealigned
+
+.Laligntocacheline:
+	lfd 	fp9,0x08(r4)
+	lfdu	fp10,0x10(r4)
+	stfd	fp9,0x08(r6)
+	stfdu	fp10,0x10(r6)
+	bdnz	.Laligntocacheline
+
+
+.Lcachelinealigned:		/* copy while cache lines  */
+
+	blt- 	cr1,.Llessthancacheline	/* size <128  */
+
+.Louterloop:
+        cmpwi   r11,0
+	mtctr	r11
+	beq-	.Lendloop
+
+	li	r11,128*ZERO_AHEAD +8	/* DCBZ dist  */
+
+.align	4
+	/* Copy whole cachelines, optimized by prefetching SRC cacheline  */
+.Lloop: 			/* Copy aligned body  */
+	dcbt	r12,r4		/* PREFETCH SOURCE some cache lines ahead  */
+	lfd	fp9, 0x08(r4)
+	dcbz	r11,r6
+	lfd	fp10, 0x10(r4)	/* 4 register stride copy is optimal  */
+	lfd	fp11, 0x18(r4)	/* to hide 1st level cache lantency.  */
+	lfd	fp12, 0x20(r4)
+	stfd	fp9, 0x08(r6)
+	stfd	fp10, 0x10(r6)
+	stfd	fp11, 0x18(r6)
+	stfd	fp12, 0x20(r6)
+	lfd	fp9, 0x28(r4)
+	lfd	fp10, 0x30(r4)
+	lfd	fp11, 0x38(r4)
+	lfd	fp12, 0x40(r4)
+	stfd	fp9, 0x28(r6)
+	stfd	fp10, 0x30(r6)
+	stfd	fp11, 0x38(r6)
+	stfd	fp12, 0x40(r6)
+	lfd	fp9, 0x48(r4)
+	lfd	fp10, 0x50(r4)
+	lfd	fp11, 0x58(r4)
+	lfd	fp12, 0x60(r4)
+	stfd	fp9, 0x48(r6)
+	stfd	fp10, 0x50(r6)
+	stfd	fp11, 0x58(r6)
+	stfd	fp12, 0x60(r6)
+	lfd	fp9, 0x68(r4)
+	lfd	fp10, 0x70(r4)
+	lfd	fp11, 0x78(r4)
+	lfdu	fp12, 0x80(r4)
+	stfd	fp9, 0x68(r6)
+	stfd	fp10, 0x70(r6)
+	stfd	fp11, 0x78(r6)
+	stfdu	fp12, 0x80(r6)
+
+	bdnz	.Lloop
+
+.Lendloop:
+	cmpwi	r10,0
+	slwi	r10,r10,2	/* adjust from 128 to 32 byte stride  */
+	beq-	.Lendloop2
+	mtctr	r10
+
+.Lloop2: 			/* Copy aligned body  */
+	lfd	fp9, 0x08(r4)
+	lfd	fp10, 0x10(r4)
+	lfd	fp11, 0x18(r4)
+	lfdu	fp12, 0x20(r4)
+	stfd	fp9, 0x08(r6)
+	stfd	fp10, 0x10(r6)
+	stfd	fp11, 0x18(r6)
+	stfdu	fp12, 0x20(r6)
+
+	bdnz	.Lloop2
+.Lendloop2:
+
+.Llessthancacheline:		/* less than cache to do ?  */
+	cmplwi	cr0,r5,16
+	srwi	r7,r5,4		/* divide size by 16  */
+	blt-	.Ldo_lt16
+	mtctr	r7
+
+.Lcopy_remaining:
+	lfd 	fp9,0x08(r4)
+	lfdu	fp10,0x10(r4)
+	stfd	fp9,0x08(r6)
+	stfdu	fp10,0x10(r6)
+	bdnz	.Lcopy_remaining
+
+.Ldo_lt16:			/* less than 16 ?  */
+	cmplwi	cr0,r5,0	/* copy remaining bytes (0-15)  */
+	beqlr+			/* no rest to copy  */	
+	addi	r4,r4,8
+	addi	r6,r6,8
+
+.Lshortcopy:			/* SIMPLE COPY to handle size =< 15 bytes  */
+	mtcrf	0x01,r5
+	sub	r7,r4,r6
+	bf-	cr7*4+0,8f
+	lfdx	fp9,r7,r6	/* copy 8 byte  */
+	stfd	fp9,0(r6)
+	addi	r6,r6,8
+8:
+	bf	cr7*4+1,4f
+	lwzx	r0,r7,r6	/* copy 4 byte  */
+	stw	r0,0(r6)
+	addi	r6,r6,4
+4:
+	bf	cr7*4+2,2f
+	lhzx	r0,r7,r6	/* copy 2 byte  */
+	sth	r0,0(r6)
+	addi	r6,r6,2
+2:
+	bf	cr7*4+3,1f
+	lbzx	r0,r7,r6	/* copy 1 byte  */
+	stb	r0,0(r6)
+1:	blr
+
+END (BP_SYM (memcpy))
+libc_hidden_builtin_def (memcpy)
diff --git a/sysdeps/powerpc/powerpc64/cell/memcpy.S b/sysdeps/powerpc/powerpc64/cell/memcpy.S
new file mode 100644
index 0000000..2a00a6e
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/cell/memcpy.S
@@ -0,0 +1,245 @@
+/* Optimized memcpy implementation for CELL BE PowerPC.
+   Copyright (C) 2010 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., 59 Temple Place, Suite 330, Boston, MA
+   02111-1307 USA.  */
+
+#include <sysdep.h>
+#include <bp-sym.h>
+#include <bp-asm.h>
+
+#define PREFETCH_AHEAD 6	/* no cache lines SRC prefetching ahead  */
+#define ZERO_AHEAD 4		/* no cache lines DST zeroing ahead  */
+
+/* memcpy routine optimized for CELL-BE-PPC	v2.0
+ *
+ * The CELL PPC core has 1 integer unit and 1 load/store unit
+ * CELL:
+ * 1st level data cache = 32K
+ * 2nd level data cache = 512K
+ * 3rd level data cache = 0K
+ * With 3.2 GHz clockrate the latency to 2nd level cache is >36 clocks,
+ * latency to memory is >400 clocks
+ * To improve copy performance we need to prefetch source data
+ * far ahead to hide this latency
+ * For best performance instructionforms ending in "." like "andi."
+ * should be avoided as the are implemented in microcode on CELL.
+ * The below code is loop unrolled for the CELL cache line of 128 bytes
+ */
+
+.align  7
+
+EALIGN (BP_SYM (memcpy), 5, 0)
+        CALL_MCOUNT 3
+
+	dcbt	0,r4		/* Prefetch ONE SRC cacheline  */
+	cmpldi	cr1,r5,16	/* is size < 16 ?  */
+	mr	r6,r3		
+	blt+	cr1,.Lshortcopy
+
+.Lbigcopy:
+	neg	r8,r3		/* LS 3 bits = # bytes to 8-byte dest bdry  */
+        clrldi  r8,r8,64-4	/* aling to 16byte boundary  */
+	sub     r7,r4,r3
+	cmpldi	cr0,r8,0
+	beq+	.Ldst_aligned
+
+.Ldst_unaligned:
+	mtcrf	0x01,r8		/* put #bytes to boundary into cr7  */
+	subf	r5,r8,r5
+
+	bf	cr7*4+3,1f
+	lbzx	r0,r7,r6	/* copy 1 byte  */
+	stb	r0,0(r6)
+	addi	r6,r6,1
+1:	bf	cr7*4+2,2f
+	lhzx	r0,r7,r6	/* copy 2 byte  */
+	sth	r0,0(r6)
+	addi	r6,r6,2
+2:	bf	cr7*4+1,4f
+	lwzx	r0,r7,r6	/* copy 4 byte  */
+	stw	r0,0(r6)
+	addi	r6,r6,4
+4:	bf	cr7*4+0,8f
+	ldx	r0,r7,r6	/* copy 8 byte  */
+	std	r0,0(r6)
+	addi	r6,r6,8
+8:
+	add	r4,r7,r6
+
+.Ldst_aligned:
+
+	cmpdi	cr5,r5,128-1
+
+	neg	r7,r6
+	addi	r6,r6,-8	/* prepare for stdu  */
+	addi	r4,r4,-8	/* prepare for ldu  */
+
+	clrldi  r7,r7,64-7	/* align to cacheline boundary  */
+	ble+	cr5,.Llessthancacheline
+
+	cmpldi	cr6,r7,0
+	subf	r5,r7,r5
+	srdi	r7,r7,4		/* divide size by 16  */
+	srdi	r10,r5,7	/* number of cache lines to copy  */
+
+	cmpldi	r10,0
+	li	r11,0		/* number cachelines to copy with prefetch  */
+	beq	.Lnocacheprefetch
+
+	cmpldi	r10,PREFETCH_AHEAD
+	li	r12,128+8	/* prefetch distance  */
+	ble	.Llessthanmaxprefetch
+
+	subi	r11,r10,PREFETCH_AHEAD
+	li	r10,PREFETCH_AHEAD
+
+.Llessthanmaxprefetch:
+	mtctr	r10
+
+.LprefetchSRC:
+	dcbt    r12,r4
+        addi    r12,r12,128
+        bdnz    .LprefetchSRC
+
+.Lnocacheprefetch:
+	mtctr	r7
+	cmpldi	cr1,r5,128
+	clrldi  r5,r5,64-7
+	beq	cr6,.Lcachelinealigned
+
+.Laligntocacheline:
+	ld 	r9,0x08(r4)
+	ldu	r7,0x10(r4)
+	std	r9,0x08(r6)
+	stdu	r7,0x10(r6)
+	bdnz	.Laligntocacheline
+
+
+.Lcachelinealigned:		/* copy while cache lines  */
+
+	blt- 	cr1,.Llessthancacheline	/* size <128  */
+
+.Louterloop:
+        cmpdi   r11,0
+	mtctr	r11
+	beq-	.Lendloop
+
+	li	r11,128*ZERO_AHEAD +8	/* DCBZ dist  */
+
+.align	4
+	/* Copy whole cachelines, optimized by prefetching SRC cacheline  */
+.Lloop: 			/* Copy aligned body  */
+	dcbt	r12,r4		/* PREFETCH SOURCE some cache lines ahead  */
+	ld	r9, 0x08(r4)
+	dcbz	r11,r6
+	ld	r7, 0x10(r4)	/* 4 register stride copy is optimal  */
+	ld	r8, 0x18(r4)	/* to hide 1st level cache lantency.  */
+	ld	r0, 0x20(r4)
+	std	r9, 0x08(r6)
+	std	r7, 0x10(r6)
+	std	r8, 0x18(r6)
+	std	r0, 0x20(r6)
+	ld	r9, 0x28(r4)
+	ld	r7, 0x30(r4)
+	ld	r8, 0x38(r4)
+	ld	r0, 0x40(r4)
+	std	r9, 0x28(r6)
+	std	r7, 0x30(r6)
+	std	r8, 0x38(r6)
+	std	r0, 0x40(r6)
+	ld	r9, 0x48(r4)
+	ld	r7, 0x50(r4)
+	ld	r8, 0x58(r4)
+	ld	r0, 0x60(r4)
+	std	r9, 0x48(r6)
+	std	r7, 0x50(r6)
+	std	r8, 0x58(r6)
+	std	r0, 0x60(r6)
+	ld	r9, 0x68(r4)
+	ld	r7, 0x70(r4)
+	ld	r8, 0x78(r4)
+	ldu	r0, 0x80(r4)
+	std	r9, 0x68(r6)
+	std	r7, 0x70(r6)
+	std	r8, 0x78(r6)
+	stdu	r0, 0x80(r6)
+
+	bdnz	.Lloop
+
+.Lendloop:
+	cmpdi	r10,0
+	sldi	r10,r10,2	/* adjust from 128 to 32 byte stride  */
+	beq-	.Lendloop2
+	mtctr	r10
+
+.Lloop2: 			/* Copy aligned body  */
+	ld	r9, 0x08(r4)
+	ld	r7, 0x10(r4)
+	ld	r8, 0x18(r4)
+	ldu	r0, 0x20(r4)
+	std	r9, 0x08(r6)
+	std	r7, 0x10(r6)
+	std	r8, 0x18(r6)
+	stdu	r0, 0x20(r6)
+
+	bdnz	.Lloop2
+.Lendloop2:
+
+.Llessthancacheline:		/* less than cache to do ?  */
+	cmpldi	cr0,r5,16
+	srdi	r7,r5,4		/* divide size by 16  */
+	blt-	.Ldo_lt16
+	mtctr	r7
+
+.Lcopy_remaining:
+	ld 	r8,0x08(r4)
+	ldu	r7,0x10(r4)
+	std	r8,0x08(r6)
+	stdu	r7,0x10(r6)
+	bdnz	.Lcopy_remaining
+
+.Ldo_lt16:			/* less than 16 ?  */
+	cmpldi	cr0,r5,0	/* copy remaining bytes (0-15)  */
+	beqlr+			/* no rest to copy  */	
+	addi	r4,r4,8
+	addi	r6,r6,8
+
+.Lshortcopy:			/* SIMPLE COPY to handle size =< 15 bytes  */
+	mtcrf	0x01,r5
+	sub	r7,r4,r6
+	bf-	cr7*4+0,8f
+	ldx	r0,r7,r6	/* copy 8 byte  */
+	std	r0,0(r6)
+	addi	r6,r6,8
+8:
+	bf	cr7*4+1,4f
+	lwzx	r0,r7,r6	/* copy 4 byte  */
+	stw	r0,0(r6)
+	addi	r6,r6,4
+4:
+	bf	cr7*4+2,2f
+	lhzx	r0,r7,r6	/* copy 2 byte  */
+	sth	r0,0(r6)
+	addi	r6,r6,2
+2:
+	bf	cr7*4+3,1f
+	lbzx	r0,r7,r6	/* copy 1 byte  */
+	stb	r0,0(r6)
+1:	blr
+
+END_GEN_TB (BP_SYM (memcpy),TB_TOCLESS)
+libc_hidden_builtin_def (memcpy)
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/cell/fpu/Implies b/sysdeps/unix/sysv/linux/powerpc/powerpc32/cell/fpu/Implies
new file mode 100644
index 0000000..7c381f0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/cell/fpu/Implies
@@ -0,0 +1,3 @@
+# Make sure this comes before the powerpc/powerpc32/fpu that's
+# listed in unix/sysv/linux/powerpc/powerpc32/fpu/Implies.
+powerpc/powerpc32/cell/fpu
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/cell/fpu/Implies b/sysdeps/unix/sysv/linux/powerpc/powerpc64/cell/fpu/Implies
new file mode 100644
index 0000000..b6720ec
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/cell/fpu/Implies
@@ -0,0 +1 @@
+powerpc/powerpc64/cell/fpu

-----------------------------------------------------------------------

Summary of changes:
 ChangeLog                                          |    7 +
 sysdeps/powerpc/powerpc32/cell/memcpy.S            |  245 ++++++++++++++++++++
 sysdeps/powerpc/powerpc64/cell/memcpy.S            |  245 ++++++++++++++++++++
 .../sysv/linux/powerpc/powerpc32/cell/fpu/Implies  |    3 +
 .../sysv/linux/powerpc/powerpc64/cell/fpu/Implies  |    1 +
 5 files changed, 501 insertions(+), 0 deletions(-)
 create mode 100644 sysdeps/powerpc/powerpc32/cell/memcpy.S
 create mode 100644 sysdeps/powerpc/powerpc64/cell/memcpy.S
 create mode 100644 sysdeps/unix/sysv/linux/powerpc/powerpc32/cell/fpu/Implies
 create mode 100644 sysdeps/unix/sysv/linux/powerpc/powerpc64/cell/fpu/Implies


hooks/post-receive
-- 
GNU C Library master sources


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