Fix dspr2 rename changes. Fix unused variables

source/scale_msa.cc

 /*
  *  Copyright 2016 The LibYuv 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.
  */
 
@@ skipping 205 matching lines @@
 }
 
 void ScaleRowDown2Box_MSA(const uint8_t* src_ptr,
                           ptrdiff_t src_stride,
                           uint8_t* dst,
                           int dst_width) {
   int x;
   const uint8_t* s = src_ptr;
   const uint8_t* t = src_ptr + src_stride;
   v16u8 src0, src1, src2, src3, src4, src5, src6, src7, dst0, dst1;
-  v8u16 vec0, vec1, vec2, vec3, vec4, vec5, vec6, vec7;
+  v8u16 vec0, vec1, vec2, vec3;
 
   for (x = 0; x < dst_width; x += 32) {
     src0 = (v16u8)__msa_ld_b((v16i8*)s, 0);
     src1 = (v16u8)__msa_ld_b((v16i8*)s, 16);
     src2 = (v16u8)__msa_ld_b((v16i8*)s, 32);
     src3 = (v16u8)__msa_ld_b((v16i8*)s, 48);
     src4 = (v16u8)__msa_ld_b((v16i8*)t, 0);
     src5 = (v16u8)__msa_ld_b((v16i8*)t, 16);
     src6 = (v16u8)__msa_ld_b((v16i8*)t, 32);
     src7 = (v16u8)__msa_ld_b((v16i8*)t, 48);
@@ skipping 277 matching lines @@
     s += 32;
     t0 += 32;
     t1 += 32;
     dst_ptr += 12;
   }
 }
 
 void ScaleAddRow_MSA(const uint8_t* src_ptr, uint16_t* dst_ptr, int src_width) {
   int x;
   v16u8 src0;
-  v8u16 vec0, vec1, dst0, dst1;
+  v8u16 dst0, dst1;
   v16i8 zero = {0};
 
   assert(src_width > 0);
 
   for (x = 0; x < src_width; x += 16) {
     src0 = LD_UB(src_ptr);
     dst0 = (v8u16)__msa_ld_h((v8i16*)dst_ptr, 0);
     dst1 = (v8u16)__msa_ld_h((v8i16*)dst_ptr, 16);
     dst0 += (v8u16)__msa_ilvr_b(zero, (v16i8)src0);
     dst1 += (v8u16)__msa_ilvl_b(zero, (v16i8)src0);
     ST_UH2(dst0, dst1, dst_ptr, 8);
     src_ptr += 16;
     dst_ptr += 16;
   }
 }
 
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif
 
 #endif  // !defined(LIBYUV_DISABLE_MSA) && defined(__mips_msa)