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-rw-r--r--libc/ports/sysdeps/powerpc/nofpu/fclrexcpt.c3
-rw-r--r--libc/ports/sysdeps/powerpc/powerpc32/405/memset.S12
-rw-r--r--libc/ports/sysdeps/powerpc/powerpc32/476/memset.S154
-rw-r--r--libc/ports/sysdeps/powerpc/powerpc32/e500/fpu/fclrexcpt.c1
4 files changed, 163 insertions, 7 deletions
diff --git a/libc/ports/sysdeps/powerpc/nofpu/fclrexcpt.c b/libc/ports/sysdeps/powerpc/nofpu/fclrexcpt.c
index 768fd8ff8..f4b9016ea 100644
--- a/libc/ports/sysdeps/powerpc/nofpu/fclrexcpt.c
+++ b/libc/ports/sysdeps/powerpc/nofpu/fclrexcpt.c
@@ -1,5 +1,5 @@
/* Clear floating-point exceptions (soft-float edition).
- Copyright (C) 2002 Free Software Foundation, Inc.
+ Copyright (C) 2002-2012 Free Software Foundation, Inc.
Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
This file is part of the GNU C Library.
@@ -33,4 +33,5 @@ strong_alias (__feclearexcept, __old_feclearexcept)
compat_symbol (libm, __old_feclearexcept, feclearexcept, GLIBC_2_1);
#endif
+libm_hidden_ver (__feclearexcept, feclearexcept)
versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2);
diff --git a/libc/ports/sysdeps/powerpc/powerpc32/405/memset.S b/libc/ports/sysdeps/powerpc/powerpc32/405/memset.S
index e132ce365..c2ee6c593 100644
--- a/libc/ports/sysdeps/powerpc/powerpc32/405/memset.S
+++ b/libc/ports/sysdeps/powerpc/powerpc32/405/memset.S
@@ -1,5 +1,5 @@
-/* Optimized memset implementation for PowerPC476.
- Copyright (C) 2010 Free Software Foundation, Inc.
+/* Optimized memset for PowerPC405,440,464 (32-byte cacheline).
+ Copyright (C) 2012 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
@@ -104,7 +104,7 @@ L(use_dcbz):
add r3,r3,r7
L(skip_string_loop):
- clrlwi r8,r6,25
+ clrlwi r8,r6,27
srwi. r8,r8,4
beq L(dcbz_pre_loop)
mtctr r8
@@ -119,14 +119,14 @@ L(word_loop):
bdnz L(word_loop)
L(dcbz_pre_loop):
- srwi r6,r5,7
+ srwi r6,r5,5
mtctr r6
addi r7,0,0
L(dcbz_loop):
dcbz r3,r7
- addi r3,r3,0x80
- subi r5,r5,0x80
+ addi r3,r3,0x20
+ subi r5,r5,0x20
bdnz L(dcbz_loop)
srwi. r6,r5,4
beq L(postword2_count_loop)
diff --git a/libc/ports/sysdeps/powerpc/powerpc32/476/memset.S b/libc/ports/sysdeps/powerpc/powerpc32/476/memset.S
new file mode 100644
index 000000000..8b5750442
--- /dev/null
+++ b/libc/ports/sysdeps/powerpc/powerpc32/476/memset.S
@@ -0,0 +1,154 @@
+/* Optimized memset for PowerPC476 (128-byte cacheline).
+ 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#include <bp-sym.h>
+#include <bp-asm.h>
+
+/* memset
+
+ r3:destination address and return address
+ r4:source integer to copy
+ r5:byte count
+ r11:sources integer to copy in all 32 bits of reg
+ r12:temp return address
+
+ Save return address in r12
+ If destinationn is unaligned and count is greater tha 255 bytes
+ set 0-3 bytes to make destination aligned
+ If count is greater tha 255 bytes and setting zero to memory
+ use dbcz to set memeory when we can
+ otherwsie do the follwoing
+ If 16 or more words to set we use 16 word copy loop.
+ Finaly we set 0-15 extra bytes with string store. */
+
+EALIGN (BP_SYM (memset), 5, 0)
+ rlwinm r11,r4,0,24,31
+ rlwimi r11,r4,8,16,23
+ rlwimi r11,r11,16,0,15
+ addi r12,r3,0
+ cmpwi r5,0x00FF
+ ble L(preword8_count_loop)
+ cmpwi r4,0x00
+ beq L(use_dcbz)
+ neg r6,r3
+ clrlwi. r6,r6,30
+ beq L(preword8_count_loop)
+ addi r8,0,1
+ mtctr r6
+ subi r3,r3,1
+
+L(unaligned_bytecopy_loop):
+ stbu r11,0x1(r3)
+ subf. r5,r8,r5
+ beq L(end_memset)
+ bdnz L(unaligned_bytecopy_loop)
+ addi r3,r3,1
+
+L(preword8_count_loop):
+ srwi. r6,r5,4
+ beq L(preword2_count_loop)
+ mtctr r6
+ addi r3,r3,-4
+ mr r8,r11
+ mr r9,r11
+ mr r10,r11
+
+L(word8_count_loop_no_dcbt):
+ stwu r8,4(r3)
+ stwu r9,4(r3)
+ subi r5,r5,0x10
+ stwu r10,4(r3)
+ stwu r11,4(r3)
+ bdnz L(word8_count_loop_no_dcbt)
+ addi r3,r3,4
+
+L(preword2_count_loop):
+ clrlwi. r7,r5,28
+ beq L(end_memset)
+ mr r8,r11
+ mr r9,r11
+ mr r10,r11
+ mtxer r7
+ stswx r8,0,r3
+
+L(end_memset):
+ addi r3,r12,0
+ blr
+
+L(use_dcbz):
+ neg r6,r3
+ clrlwi. r7,r6,28
+ beq L(skip_string_loop)
+ mr r8,r11
+ mr r9,r11
+ mr r10,r11
+ subf r5,r7,r5
+ mtxer r7
+ stswx r8,0,r3
+ add r3,r3,r7
+
+L(skip_string_loop):
+ clrlwi r8,r6,25
+ srwi. r8,r8,4
+ beq L(dcbz_pre_loop)
+ mtctr r8
+
+L(word_loop):
+ stw r11,0(r3)
+ subi r5,r5,0x10
+ stw r11,4(r3)
+ stw r11,8(r3)
+ stw r11,12(r3)
+ addi r3,r3,0x10
+ bdnz L(word_loop)
+
+L(dcbz_pre_loop):
+ srwi r6,r5,7
+ mtctr r6
+ addi r7,0,0
+
+L(dcbz_loop):
+ dcbz r3,r7
+ addi r3,r3,0x80
+ subi r5,r5,0x80
+ bdnz L(dcbz_loop)
+ srwi. r6,r5,4
+ beq L(postword2_count_loop)
+ mtctr r6
+
+L(postword8_count_loop):
+ stw r11,0(r3)
+ subi r5,r5,0x10
+ stw r11,4(r3)
+ stw r11,8(r3)
+ stw r11,12(r3)
+ addi r3,r3,0x10
+ bdnz L(postword8_count_loop)
+
+L(postword2_count_loop):
+ clrlwi. r7,r5,28
+ beq L(end_memset)
+ mr r8,r11
+ mr r9,r11
+ mr r10,r11
+ mtxer r7
+ stswx r8,0,r3
+ b L(end_memset)
+END (BP_SYM (memset))
+libc_hidden_builtin_def (memset)
diff --git a/libc/ports/sysdeps/powerpc/powerpc32/e500/fpu/fclrexcpt.c b/libc/ports/sysdeps/powerpc/powerpc32/e500/fpu/fclrexcpt.c
index 685e66c82..d937ec0dd 100644
--- a/libc/ports/sysdeps/powerpc/powerpc32/e500/fpu/fclrexcpt.c
+++ b/libc/ports/sysdeps/powerpc/powerpc32/e500/fpu/fclrexcpt.c
@@ -44,4 +44,5 @@ strong_alias (__feclearexcept, __old_feclearexcept)
compat_symbol (libm, __old_feclearexcept, feclearexcept, GLIBC_2_1);
#endif
+libm_hidden_ver (__feclearexcept, feclearexcept)
versioned_symbol (libm, __feclearexcept, feclearexcept, GLIBC_2_2);
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