Update to opus-HEAD-66611f1.

celt/arm/fixed_armv5e.h

 /* Copyright (C) 2007-2009 Xiph.Org Foundation
    Copyright (C) 2003-2008 Jean-Marc Valin
    Copyright (C) 2007-2008 CSIRO
    Copyright (C) 2013      Parrot */
 /*
    Redistribution and use in source and binary forms, with or without
    modification, are permitted provided that the following conditions
    are met:
 
    - Redistributions of source code must retain the above copyright
@@ skipping 64 matching lines @@
   __asm__(
       "#MAC16_32_Q15\n\t"
       "smlawb %0, %1, %2, %3;\n"
       : "=r"(res)
       : "r"(b<<1), "r"(a), "r"(c)
   );
   return res;
 }
 #define MAC16_32_Q15(c, a, b) (MAC16_32_Q15_armv5e(c, a, b))
 
+/** 16x32 multiply, followed by a 16-bit shift right and 32-bit add.
+    Result fits in 32 bits. */
+#undef MAC16_32_Q16
+static OPUS_INLINE opus_val32 MAC16_32_Q16_armv5e(opus_val32 c, opus_val16 a,
+ opus_val32 b)
+{
+  int res;
+  __asm__(
+      "#MAC16_32_Q16\n\t"
+      "smlawb %0, %1, %2, %3;\n"
+      : "=r"(res)
+      : "r"(b), "r"(a), "r"(c)
+  );
+  return res;
+}
+#define MAC16_32_Q16(c, a, b) (MAC16_32_Q16_armv5e(c, a, b))
+
 /** 16x16 multiply-add where the result fits in 32 bits */
 #undef MAC16_16
 static OPUS_INLINE opus_val32 MAC16_16_armv5e(opus_val32 c, opus_val16 a,
  opus_val16 b)
 {
   int res;
   __asm__(
       "#MAC16_16\n\t"
       "smlabb %0, %1, %2, %3;\n"
       : "=r"(res)
@@ skipping 11 matching lines @@
   __asm__(
       "#MULT16_16\n\t"
       "smulbb %0, %1, %2;\n"
       : "=r"(res)
       : "r"(a), "r"(b)
   );
   return res;
 }
 #define MULT16_16(a, b) (MULT16_16_armv5e(a, b))
 
+#ifdef OPUS_ARM_INLINE_MEDIA
+
+#undef SIG2WORD16
+static OPUS_INLINE opus_val16 SIG2WORD16_armv6(opus_val32 x)
+{
+   celt_sig res;
+   __asm__(
+       "#SIG2WORD16\n\t"
+       "ssat %0, #16, %1, ASR #12\n\t"
+       : "=r"(res)
+       : "r"(x+2048)
+   );
+   return EXTRACT16(res);
+}
+#define SIG2WORD16(x) (SIG2WORD16_armv6(x))
+
+#endif /* OPUS_ARM_INLINE_MEDIA */
+
 #endif