libvpx: Pull from upstream

source/libvpx/vp8/encoder/ppc/encodemb_altivec.asm

Index: source/libvpx/vp8/encoder/ppc/encodemb_altivec.asm
diff --git a/source/libvpx/vp8/encoder/ppc/encodemb_altivec.asm b/source/libvpx/vp8/encoder/ppc/encodemb_altivec.asm
deleted file mode 100644
index 6e0099ddc885859ef8412ab85ce621eb36b6b636..0000000000000000000000000000000000000000
--- a/source/libvpx/vp8/encoder/ppc/encodemb_altivec.asm
+++ /dev/null
@@ -1,153 +0,0 @@
-;
-;  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
-;
-;  Use of this source code is governed by a BSD-style license
-;  that can be found in the LICENSE file in the root of the source
-;  tree. An additional intellectual property rights grant can be found
-;  in the file PATENTS.  All contributing project authors may
-;  be found in the AUTHORS file in the root of the source tree.
-;
-
-
-    .globl vp8_subtract_mbuv_ppc
-    .globl vp8_subtract_mby_ppc
-
-;# r3 short *diff
-;# r4 unsigned char *usrc
-;# r5 unsigned char *vsrc
-;# r6 unsigned char *pred
-;# r7 int stride
-vp8_subtract_mbuv_ppc:
-    mfspr   r11, 256            ;# get old VRSAVE
-    oris    r12, r11, 0xf000
-    mtspr   256, r12            ;# set VRSAVE
-
-    li      r9, 256
-    add     r3, r3, r9
-    add     r3, r3, r9
-    add     r6, r6, r9
-
-    li      r10, 16
-    li      r9,  4
-    mtctr   r9
-
-    vspltisw v0, 0
-
-mbu_loop:
-    lvsl    v5, 0, r4           ;# permutate value for alignment
-    lvx     v1, 0, r4           ;# src
-    lvx     v2, 0, r6           ;# pred
-
-    add     r4, r4, r7
-    addi    r6, r6, 16
-
-    vperm   v1, v1, v0, v5
-
-    vmrghb  v3, v0, v1          ;# unpack high src  to short
-    vmrghb  v4, v0, v2          ;# unpack high pred to short
-
-    lvsl    v5, 0, r4           ;# permutate value for alignment
-    lvx     v1, 0, r4           ;# src
-
-    add     r4, r4, r7
-
-    vsubshs v3, v3, v4
-
-    stvx    v3, 0, r3           ;# store out diff
-
-    vperm   v1, v1, v0, v5
-
-    vmrghb  v3, v0, v1          ;# unpack high src  to short
-    vmrglb  v4, v0, v2          ;# unpack high pred to short
-
-    vsubshs v3, v3, v4
-
-    stvx    v3, r10, r3         ;# store out diff
-
-    addi    r3, r3, 32
-
-    bdnz    mbu_loop
-
-    mtctr   r9
-
-mbv_loop:
-    lvsl    v5, 0, r5           ;# permutate value for alignment
-    lvx     v1, 0, r5           ;# src
-    lvx     v2, 0, r6           ;# pred
-
-    add     r5, r5, r7
-    addi    r6, r6, 16
-
-    vperm   v1, v1, v0, v5
-
-    vmrghb  v3, v0, v1          ;# unpack high src  to short
-    vmrghb  v4, v0, v2          ;# unpack high pred to short
-
-    lvsl    v5, 0, r5           ;# permutate value for alignment
-    lvx     v1, 0, r5           ;# src
-
-    add     r5, r5, r7
-
-    vsubshs v3, v3, v4
-
-    stvx    v3, 0, r3           ;# store out diff
-
-    vperm   v1, v1, v0, v5
-
-    vmrghb  v3, v0, v1          ;# unpack high src  to short
-    vmrglb  v4, v0, v2          ;# unpack high pred to short
-
-    vsubshs v3, v3, v4
-
-    stvx    v3, r10, r3         ;# store out diff
-
-    addi    r3, r3, 32
-
-    bdnz    mbv_loop
-
-    mtspr   256, r11            ;# reset old VRSAVE
-
-    blr
-
-;# r3 short *diff
-;# r4 unsigned char *src
-;# r5 unsigned char *pred
-;# r6 int stride
-vp8_subtract_mby_ppc:
-    mfspr   r11, 256            ;# get old VRSAVE
-    oris    r12, r11, 0xf800
-    mtspr   256, r12            ;# set VRSAVE
-
-    li      r10, 16
-    mtctr   r10
-
-    vspltisw v0, 0
-
-mby_loop:
-    lvx     v1, 0, r4           ;# src
-    lvx     v2, 0, r5           ;# pred
-
-    add     r4, r4, r6
-    addi    r5, r5, 16
-
-    vmrghb  v3, v0, v1          ;# unpack high src  to short
-    vmrghb  v4, v0, v2          ;# unpack high pred to short
-
-    vsubshs v3, v3, v4
-
-    stvx    v3, 0, r3           ;# store out diff
-
-    vmrglb  v3, v0, v1          ;# unpack low src  to short
-    vmrglb  v4, v0, v2          ;# unpack low pred to short
-
-    vsubshs v3, v3, v4
-
-    stvx    v3, r10, r3         ;# store out diff
-
-    addi    r3, r3, 32
-
-    bdnz    mby_loop
-
-    mtspr   256, r11            ;# reset old VRSAVE
-
-    blr