Match existing type usage better.

webrtc/modules/audio_processing/ns/nsx_core_mips.c

 /*
  *  Copyright (c) 2013 The WebRTC 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 740 matching lines @@
 }
 
 // Filter the data in the frequency domain, and create spectrum.
 void WebRtcNsx_PrepareSpectrum_mips(NoiseSuppressionFixedC* inst,
                                     int16_t* freq_buf) {
   uint16_t *noiseSupFilter = inst->noiseSupFilter;
   int16_t *real = inst->real;
   int16_t *imag = inst->imag;
   int32_t loop_count = 2;
   int16_t tmp_1, tmp_2, tmp_3, tmp_4, tmp_5, tmp_6;
-  int16_t tmp16 = (inst->anaLen << 1) - 4;
+  int16_t tmp16 = (int16_t)(inst->anaLen << 1) - 4;
   int16_t* freq_buf_f = freq_buf;
   int16_t* freq_buf_s = &freq_buf[tmp16];
 
   __asm __volatile (
     ".set       push                                                 \n\t"
     ".set       noreorder                                            \n\t"
     //first sample
     "lh         %[tmp_1],           0(%[noiseSupFilter])             \n\t"
     "lh         %[tmp_2],           0(%[real])                       \n\t"
     "lh         %[tmp_3],           0(%[imag])                       \n\t"
@@ skipping 220 matching lines @@
    "4:                                                 \n\t"
     ".set          pop                                 \n\t"
     : [t0] "=&r" (t0), [r0] "=&r" (r0), [r1] "=&r" (r1),
       [r2] "=&r" (r2), [r3] "=&r" (r3)
     : [len] "r" (len), [shift] "r" (shift), [in] "r" (in),
       [out] "r" (out)
     : "memory"
   );
 }