[Opus] Update to v1.2.1

third_party/opus/src/celt/arm/celt_pitch_xcorr_arm.s

 ; Copyright (c) 2007-2008 CSIRO
 ; Copyright (c) 2007-2009 Xiph.Org Foundation
 ; Copyright (c) 2013      Parrot
 ; Written by Aurélien Zanelli
 ;
 ; 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 135 matching lines @@
   ; Load last *y
   VLD1.16      {d4[]}, [r5]!
   VSRI.64      d4, d5, #16
   ; Load last *x
   VLD1.16      {d6[]}, [r4]!
   VMLAL.S16    q0, d4, d6
   MOV          pc, lr
   ENDP
 
 ; opus_val32 celt_pitch_xcorr_neon(opus_val16 *_x, opus_val16 *_y,
-;  opus_val32 *xcorr, int len, int max_pitch)
+;  opus_val32 *xcorr, int len, int max_pitch, int arch)
 celt_pitch_xcorr_neon PROC
   ; input:
   ;   r0  = opus_val16 *_x
   ;   r1  = opus_val16 *_y
   ;   r2  = opus_val32 *xcorr
   ;   r3  = int         len
   ; output:
   ;   r0  = int         maxcorr
   ; internal usage:
   ;   r4  = opus_val16 *x (for xcorr_kernel_neon())
   ;   r5  = opus_val16 *y (for xcorr_kernel_neon())
   ;   r6  = int         max_pitch
   ;   r12 = int         j
   ;   q15 = int         maxcorr[4] (q15 is not used by xcorr_kernel_neon())
+  ; ignored:
+  ;         int         arch
   STMFD        sp!, {r4-r6, lr}
   LDR          r6, [sp, #16]
   VMOV.S32     q15, #1
   ; if (max_pitch < 4) goto celt_pitch_xcorr_neon_process4_done
   SUBS         r6, r6, #4
   BLT celt_pitch_xcorr_neon_process4_done
 celt_pitch_xcorr_neon_process4
   ; xcorr_kernel_neon parameters:
   ; r3 = len, r4 = _x, r5 = _y, q0 = {0, 0, 0, 0}
   MOV          r4, r0
@@ skipping 170 matching lines @@
   ;   r0  = maxcorr
   ; internal usage
   ;   r4  = opus_val16 *x
   ;   r5  = opus_val16 *y
   ;   r6  = opus_val32  sum0
   ;   r7  = opus_val32  sum1
   ;   r8  = opus_val32  sum2
   ;   r9  = opus_val32  sum3
   ;   r1  = int         max_pitch
   ;   r12 = int         j
+  ; ignored:
+  ;         int         arch
   STMFD        sp!, {r4-r11, lr}
   MOV          r5, r1
   LDR          r1, [sp, #36]
   MOV          r4, r0
   TST          r5, #3
   ; maxcorr = 1
   MOV          r0, #1
   BEQ          celt_pitch_xcorr_edsp_process1u_done
 ; Compute one sum at the start to make y 32-bit aligned.
   SUBS         r12, r3, #4
@@ skipping 167 matching lines @@
   ; xcorr[i] = sum
   STR          r14, [r2], #4
   MOVLT        r0, r14
 celt_pitch_xcorr_edsp_done
   LDMFD        sp!, {r4-r11, pc}
   ENDP
 
 ENDIF
 
 END