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| | @ libFLAC - Free Lossless Audio Codec library
@ Copyright (C) 2001,2002,2003,2004,2005,2006 Josh Coalson
@
@ 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
@ notice, this list of conditions and the following disclaimer.
@
@ - Redistributions in binary form must reproduce the above copyright
@ notice, this list of conditions and the following disclaimer in the
@ documentation and/or other materials provided with the distribution.
@
@ - Neither the name of the Xiph.org Foundation nor the names of its
@ contributors may be used to endorse or promote products derived from
@ this software without specific prior written permission.
@
@ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
@ ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
@ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
@ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
@ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
@ EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
@ PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES@ LOSS OF USE, DATA, OR
@ PROFITS@ OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
@ LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
@ NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
@ TODO: special cases for order 9, 10, 11, 12 may be further optimizable...
.text
.align 2
.global FLAC__lpc_restore_signal_asm_arm
.type FLAC__lpc_restore_signal_asm_arm, %function
FLAC__lpc_restore_signal_asm_arm:
stmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r14}
@ r0 = residual;
@ r1 = data_len;
@ r2 = qlp_coeff;
@ r3 = order;
@ r5 = lp_quantization
@ r14 = &data
ldr r5, [r13, #40] @ lp_quantization
ldr r14, [r13, #44] @ &data
@ Special case each of the common LPC order levels used by encoders
@ switch (order) { ...
sub r6, r3, #1
cmp r6, #11
ldrls r15, [r15, r6, asl #2]
b .Lgeneric_restore_signal
.align 2
.word .Lorder1
.word .Lorder2
.word .Lorder3
.word .Lorder4
.word .Lorder5
.word .Lorder6
.word .Lorder7
.word .Lorder8
.word .Lorder9
.word .Lorder10
.word .Lorder11
.word .Lorder12
.Lorder12:
ldmia r2!, {r8 - r11} @ qlp_coeff[0 - 3]
sub r14, r14, #16 @ &data[-4]
.Lorder12a:
ldmia r14, {r3, r4, r6, r7} @ r14 = &data[-4]
mul r12, r8, r7
mla r12, r9, r6, r12
mla r12, r10, r4, r12
mla r12, r11, r3, r12
ldmia r2!, {r8 - r11} @ qlp_coeff[4 - 7]
ldmdb r14!, {r3, r4, r6, r7} @ r14 = &data[-4] => &data[-8]
mla r12, r8, r7, r12
mla r12, r9, r6, r12
mla r12, r10, r4, r12
mla r12, r11, r3, r12
ldmia r2, {r8 - r11} @ qlp_coeff[8 - 11]
ldmdb r14, {r3, r4, r6, r7}
mla r12, r8, r7, r12
mla r12, r9, r6, r12
mla r12, r10, r4, r12
mla r12, r11, r3, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #32]
subs r1, r1, #1
ldmeqfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
add r14, r14, #4 @ data++, r14 = &data[-4]
ldmdb r14, {r3, r4, r6, r7} @ data[-12, -11, -10, -9], &data[-8]
mul r12, r11, r3
mla r12, r10, r4, r12
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldmdb r2!, {r8 - r11} @ qlp_coeff[4 - 7]
ldmia r14!, {r3, r4, r6, r7} @ &data[-4]
mla r12, r11, r3, r12
mla r12, r10, r4, r12
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldmdb r2, {r8 - r11} @ qlp_coeff[0 - 3]
ldmia r14, {r3, r4, r6, r7}
mla r12, r11, r3, r12
mla r12, r10, r4, r12
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #16]
subs r1, r1, #1
add r14, r14, #4 @ r14 = &data[-4]
bne .Lorder12a
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lorder11:
ldmia r2!, {r8 - r11} @ qlp_coeff[0 - 3]
sub r14, r14, #16 @ &data[-4]
.Lorder11a:
ldmia r14, {r3, r4, r6, r7} @ r14 = &data[-4]
mul r12, r8, r7
mla r12, r9, r6, r12
mla r12, r10, r4, r12
mla r12, r11, r3, r12
ldmia r2!, {r8 - r11} @ qlp_coeff[4 - 7]
ldmdb r14!, {r3, r4, r6, r7} @ r14 = &data[-4] => &data[-8]
mla r12, r8, r7, r12
mla r12, r9, r6, r12
mla r12, r10, r4, r12
mla r12, r11, r3, r12
ldmia r2, {r8 - r10} @ qlp_coeff[8 - 11]
ldmda r14, {r3, r4, r6, r7} @ we'll reuse r4, r6, and r7
mla r12, r8, r6, r12
mla r12, r9, r4, r12
mla r12, r10, r3, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #32]
subs r1, r1, #1
ldmeqfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
add r14, r14, #4 @ data++, r14 = &data[-4]
mul r12, r10, r4
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldmdb r2!, {r8 - r11} @ qlp_coeff[4 - 7]
ldmia r14!, {r3, r4, r6, r7} @ &data[-4]
mla r12, r11, r3, r12
mla r12, r10, r4, r12
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldmdb r2, {r8 - r11} @ qlp_coeff[0 - 3]
ldmia r14, {r3, r4, r6, r7}
mla r12, r11, r3, r12
mla r12, r10, r4, r12
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #16]
subs r1, r1, #1
add r14, r14, #4 @ r14 = &data[-4]
bne .Lorder11a
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lorder10:
ldmia r2!, {r8 - r11} @ qlp_coeff[0 - 3]
sub r14, r14, #16 @ &data[-4]
.Lorder10a:
ldmia r14, {r3, r4, r6, r7} @ r14 = &data[-4]
mul r12, r8, r7
mla r12, r9, r6, r12
mla r12, r10, r4, r12
mla r12, r11, r3, r12
ldmia r2!, {r8 - r11} @ qlp_coeff[4 - 7]
ldmdb r14!, {r3, r4, r6, r7} @ r14 = &data[-4] => &data[-8]
mla r12, r8, r7, r12
mla r12, r9, r6, r12
mla r12, r10, r4, r12
mla r12, r11, r3, r12
ldmia r2, {r8, r9}
ldmda r14, {r4, r6, r7} @ we'll reuse r4, r6, and r7
mla r12, r8, r6, r12
mla r12, r9, r4, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #32]
subs r1, r1, #1
ldmeqfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
add r14, r14, #4 @ data++, r14 = &data[-4]
mul r12, r9, r6
mla r12, r8, r7, r12
ldmdb r2!, {r8 - r11} @ qlp_coeff[4 - 7]
ldmia r14!, {r3, r4, r6, r7} @ &data[-4]
mla r12, r11, r3, r12
mla r12, r10, r4, r12
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldmdb r2, {r8 - r11} @ qlp_coeff[0 - 3]
ldmia r14, {r3, r4, r6, r7}
mla r12, r11, r3, r12
mla r12, r10, r4, r12
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #16]
subs r1, r1, #1
add r14, r14, #4 @ r14 = &data[-4]
bne .Lorder10a
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lorder9:
ldmia r2!, {r8 - r11} @ qlp_coeff[0 - 3]
sub r14, r14, #16 @ &data[-4]
.Lorder9a:
ldmia r14, {r3, r4, r6, r7} @ r14 = &data[-4]
mul r12, r8, r7
mla r12, r9, r6, r12
mla r12, r10, r4, r12
mla r12, r11, r3, r12
ldmia r2!, {r8 - r11} @ qlp_coeff[4 - 7]
ldmdb r14!, {r3, r4, r6, r7} @ r14 = &data[-4] => &data[-8]
mla r12, r8, r7, r12
mla r12, r9, r6, r12
mla r12, r10, r4, r12
mla r12, r11, r3, r12
ldr r8, [r2]
ldmda r14, {r6, r7} @ we'll reuse r7
mla r12, r8, r6, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #32]
subs r1, r1, #1
ldmeqfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
add r14, r14, #4 @ data++, r14 = &data[-4]
mul r12, r8, r7
ldmdb r2!, {r8 - r11} @ qlp_coeff[4 - 7]
ldmia r14!, {r3, r4, r6, r7} @ &data[-4]
mla r12, r11, r3, r12
mla r12, r10, r4, r12
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldmdb r2, {r8 - r11} @ qlp_coeff[0 - 3]
ldmia r14, {r3, r4, r6, r7}
mla r12, r11, r3, r12
mla r12, r10, r4, r12
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #16]
subs r1, r1, #1
add r14, r14, #4 @ r14 = &data[-4]
bne .Lorder9a
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lorder8:
ldmia r2!, {r8 - r11} @ qlp_coeff[0 - 3]
sub r14, r14, #16
.Lorder8a:
ldmia r14, {r3, r4, r6, r7} @ r14 = &data[-4]
mul r12, r8, r7
mla r12, r9, r6, r12
mla r12, r10, r4, r12
mla r12, r11, r3, r12
ldmia r2, {r8 - r11} @ qlp_coeff [4 - 7]
ldmdb r14, {r3, r4, r6, r7} @ r14 = &data[-4]
mla r12, r8, r7, r12
mla r12, r9, r6, r12
mla r12, r10, r4, r12
mla r12, r11, r3, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #16]
subs r1, r1, #1
ldmeqfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
add r14, r14, #4 @ data++, r14 = &data[-4]
ldmdb r14, {r3, r4, r6, r7} @ data[-8, -7, -6, -5]
mul r12, r11, r3 @ q[7] * d[-8]
mla r12, r10, r4, r12 @ q[6] * d[-7]
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldmdb r2, {r8 - r11} @ qlp_coeff[0 - 3]
ldmia r14, {r3, r4, r6, r7} @ r14 = &data[-4]
mla r12, r11, r3, r12
mla r12, r10, r4, r12
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #16]
subs r1, r1, #1
add r14, r14, #4 @ r14 = &data[-4]
bne .Lorder8a
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lorder7:
ldmia r2!, {r8 - r11}
sub r14, r14, #16
.Lorder7a:
ldmia r14, {r3, r4, r6, r7}
mul r12, r8, r7
mla r12, r9, r6, r12
mla r12, r10, r4, r12
mla r12, r11, r3, r12
ldmia r2, {r8 - r10}
ldmda r14, {r3, r4, r6, r7} @ we reuse r4, r6, r7 below, too:
mla r12, r8, r6, r12
mla r12, r9, r4, r12
mla r12, r10, r3, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #16]
subs r1, r1, #1
ldmeqfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
add r14, r14, #4
mul r12, r10, r4
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldmdb r2, {r8 - r11}
ldmia r14, {r3, r4, r6, r7}
mla r12, r11, r3, r12
mla r12, r10, r4, r12
mla r12, r9, r6, r12
mla r12, r8, r7, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #16]
subs r1, r1, #1
add r14, r14, #4
bne .Lorder7a
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lorder6:
ldmia r2, {r6 - r11} @ qlp_coeff[0 - 5]
sub r14, r14, #12 @ data[-3]
.Lorder6a:
ldmia r14, {r2 - r4}
mul r12, r6, r4
mla r12, r7, r3, r12
mla r12, r8, r2, r12
ldmdb r14, {r2 - r4}
mla r12, r9, r4, r12
mla r12, r10, r3, r12
mla r12, r11, r2, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14, #12]
add r14, r14, #4
subs r1, r1, #1
bne .Lorder6a
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lorder5:
ldmia r2, {r6 - r10} @ qlp_coeff[0 - 4]
ldr r12, [r14, #-4]! @ &data[-1]
.Lorder5a:
ldmdb r14, {r2, r3, r4, r11}
mul r12, r6, r12
mla r12, r7, r11, r12
mla r12, r8, r4, r12
mla r12, r9, r3, r12
mla r11, r10, r2, r12
ldr r3, [r0], #4
add r12, r3, r11, asr r5
str r12, [r14, #4]!
subs r1, r1, #1
bne .Lorder5a
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lorder4:
ldmia r2, {r6 - r9} @ qlp_coeff[0 - 3]
.Lorder4a:
ldmdb r14, {r2 - r4, r11}
mul r12, r6, r11
mla r12, r7, r4, r12
mla r12, r8, r3, r12
mla r12, r9, r2, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14], #4
subs r1, r1, #1
bne .Lorder4a
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lorder3:
ldmia r2, {r6 - r8} @ qlp_coeff[0 - 2]
.Lorder3a:
ldmdb r14, {r2 - r4}
mul r12, r6, r4
mla r12, r7, r3, r12
mla r12, r8, r2, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14], #4
subs r1, r1, #1
bne .Lorder3a
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lorder2:
ldmia r2, {r6, r7} @ qlp_coeff[0, 1]
ldmdb r14, {r2, r3}
.Lorder2a:
mul r12, r6, r3
mla r12, r7, r2, r12
ldr r3, [r0], #4
add r3, r3, r12, asr r5
ldr r2, [r14, #-4]
str r3, [r14], #4
subs r1, r1, #1
bne .Lorder2a
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lorder1:
ldr r6, [r2]
ldr r3, [r14, #-4]
.Lorder1a:
mul r12, r6, r3
ldr r3, [r0], #4
add r3, r3, r12, asr r5
str r3, [r14], #4
subs r1, r1, #1
bne .Lorder1a
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
@ this part started out as a Duff's Device in C, but now it's
@ optimized to take advantage of the ldm instructions:
.Lgeneric_restore_signal:
add r2, r2, r3, asl #2 @ qlp0 = &qlp_coeff[order]
add r7, r3, #7 @ order + 7
mov r8, r7, lsr #3 @ n = (order + 7) / (2^3)
.Lduffs_device_outer:
sub r14, r14, r3, asl #2 @ r8 = history = &data[-order]
mov r7, r8
mov r9, r2 @ qlp = qlp0
mov r12, #0 @ sum = 0
@ switch (order % 8)
and r4, r3, #7
cmp r4, #7
ldrls r15, [r15, r4, asl #2]
b .Lduffs_end
.align 2
.word .Lduffs_case0
.word .Lduffs_case1
.word .Lduffs_case2
.word .Lduffs_case3
.word .Lduffs_case4
.word .Lduffs_case5
.word .Lduffs_case6
.word .Lduffs_case7
.Lduffs_case7:
ldmia r14!, {r4, r6}
ldmdb r9!, {r10, r11}
mla r12, r4, r11, r12
mla r12, r6, r10, r12
.Lduffs_case5:
ldmia r14!, {r4, r6}
ldmdb r9!, {r10, r11}
mla r12, r4, r11, r12
mla r12, r6, r10, r12
.Lduffs_case3:
ldmia r14!, {r4, r6}
ldmdb r9!, {r10, r11}
mla r12, r4, r11, r12
mla r12, r6, r10, r12
.Lduffs_case1:
ldr r10, [r9, #-4]!
ldr r11, [r14], #4
mla r12, r10, r11, r12
subs r7, r7, #1
bne .Lduffs_case0
.Lduffs_end:
ldr r10, [r0], #4
add r11, r10, r12, asr r5
str r11, [r14], #4
subs r1, r1, #1
bne .Lduffs_device_outer
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lduffs_case0:
ldmia r14!, {r4, r6}
ldmdb r9!, {r10, r11}
mla r12, r4, r11, r12
mla r12, r6, r10, r12
.Lduffs_case6:
ldmia r14!, {r4, r6}
ldmdb r9!, {r10, r11}
mla r12, r4, r11, r12
mla r12, r6, r10, r12
.Lduffs_case4:
ldmia r14!, {r4, r6}
ldmdb r9!, {r10, r11}
mla r12, r4, r11, r12
mla r12, r6, r10, r12
.Lduffs_case2:
ldmia r14!, {r4, r6}
ldmdb r9!, {r10, r11}
mla r12, r4, r11, r12
mla r12, r6, r10, r12
subs r7, r7, #1
bne .Lduffs_case0
ldr r10, [r0], #4
add r11, r10, r12, asr r5
str r11, [r14], #4
subs r1, r1, #1
bne .Lduffs_device_outer
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.size FLAC__lpc_restore_signal_asm_arm, .-FLAC__lpc_restore_signal_asm_arm
.align 2
.global FLAC__lpc_restore_signal_asm_arm_wide
.type FLAC__lpc_restore_signal_asm_arm_wide, %function
FLAC__lpc_restore_signal_asm_arm_wide:
stmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r14}
@ r0 = residual;
@ r1 = data_len;
@ r2 = qlp_coeff;
@ r3 = order;
.macro finish_loop
@ 64-bit arithmetic shift right:
mov r7, r7, lsr r2 @ shift lo register r2 bits right
rsb r10, r2, #32
mov r11, r12, lsl r10 @ shift hi register (32 - r2) bits left
orr r7, r7, r11 @ combine new-hi and new-lo in one word
ands r6, r12, #0x80000000 @ mask sign bit from original hi word
orrne r7, r7, r6 @ restore sign bit from the original
ldr r10, [r0], #4 @ residual
add r12, r10, r7
str r12, [r8], #4
subs r1, r1, #1
bne .Lwide_duffs_device_outer
.endm
add r5, r2, r3, asl #2 @ qlp0 = &qlp_coeff[order]
ldr r2, [r13, #40] @ lp_quantization
ldr r8, [r13, #44] @ &data
.Lwide_duffs_device_outer:
sub r8, r8, r3, asl #2 @ r8 = data = &data[-order]
add r14, r3, #7 @ order + 7
mov r14, r14, lsr #3 @ n = (order + 7) / (2^3)
mov r9, r5 @ qlp = qlp0
mov r7, #0 @ sum = 0
mov r12, #0 @ sum = 0
@ switch (order % 8)
and r4, r3, #7
cmp r4, #7
ldrls r15, [r15, r4, asl #2]
b .Lwide_duffs_end
.align 2
.word .Lwide_duffs_case0
.word .Lwide_duffs_case1
.word .Lwide_duffs_case2
.word .Lwide_duffs_case3
.word .Lwide_duffs_case4
.word .Lwide_duffs_case5
.word .Lwide_duffs_case6
.word .Lwide_duffs_case7
.Lwide_duffs_case7:
ldmia r8!, {r4, r6}
ldmdb r9!, {r10, r11}
smlal r7, r12, r4, r11
smlal r7, r12, r6, r10
.Lwide_duffs_case5:
ldmia r8!, {r4, r6}
ldmdb r9!, {r10, r11}
smlal r7, r12, r4, r11
smlal r7, r12, r6, r10
.Lwide_duffs_case3:
ldmia r8!, {r4, r6}
ldmdb r9!, {r10, r11}
smlal r7, r12, r4, r11
smlal r7, r12, r6, r10
.Lwide_duffs_case1:
ldr r10, [r9, #-4]!
ldr r11, [r8], #4
smlal r7, r12, r10, r11
subs r14, r14, #1 @ --n
bne .Lwide_duffs_case0
.Lwide_duffs_end:
finish_loop
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.Lwide_duffs_case0:
ldmia r8!, {r4, r6}
ldmdb r9!, {r10, r11}
smlal r7, r12, r4, r11
smlal r7, r12, r6, r10
.Lwide_duffs_case6:
ldmia r8!, {r4, r6}
ldmdb r9!, {r10, r11}
smlal r7, r12, r4, r11
smlal r7, r12, r6, r10
.Lwide_duffs_case4:
ldmia r8!, {r4, r6}
ldmdb r9!, {r10, r11}
smlal r7, r12, r4, r11
smlal r7, r12, r6, r10
.Lwide_duffs_case2:
ldmia r8!, {r4, r6}
ldmdb r9!, {r10, r11}
smlal r7, r12, r4, r11
smlal r7, r12, r6, r10
subs r14, r14, #1 @ --n
bne .Lwide_duffs_case0
finish_loop
ldmfd r13!, {r4, r5, r6, r7, r8, r9, r10, r11, r12, r15}
.size FLAC__lpc_restore_signal_asm_arm_wide, .-FLAC__lpc_restore_signal_asm_arm_wide
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