generic-library/ffmpeg
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

mips: port optimizations to mips n64

Browse Source 
This mainly consists of replacing all the pointer arithmatic 'addiu'
instructions with PTR_ADDIU which will handle the differences in pointer
sizes when compiled on 64 bit mips systems.

The header asmdefs.h contains the PTR_ macros which expend to the correct mips
instructions to manipulate registers containing pointers.

Signed-off-by: James Cowgill <james410@cowgill.org.uk>
Reviewed-by: Nedeljko Babic <Nedeljko.Babic@imgtec.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
James Cowgill
2015-03-05 17:40:15 +00:00
committed by Michael Niedermayer
parent eae13eae9d
commit 157d6f0d5b
20 changed files with 247 additions and 178 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
libavcodec/mips/lsp_mips.h
View File

@@ -55,6 +55,8 @@
#define AVCODEC_LSP_MIPS_H
#if HAVE_MIPSFPU && HAVE_INLINE_ASM
#include "libavutil/mips/asmdefs.h"
static av_always_inline void ff_lsp2polyf_mips(const double *lsp, double *f, int lp_half_order)
{
int i, j = 0;
@@ -73,7 +75,7 @@ static av_always_inline void ff_lsp2polyf_mips(const double *lsp, double *f, int
__asm__ volatile(
"move %[p_f], %[p_fi] \n\t"
"add.d %[val], %[val], %[val] \n\t"
"addiu %[p_fi], 8 \n\t"
PTR_ADDIU "%[p_fi], 8 \n\t"
"ldc1 %[f_j_1], 0(%[p_f]) \n\t"
"ldc1 %[f_j], 8(%[p_f]) \n\t"
"neg.d %[val], %[val] \n\t"
@@ -91,7 +93,7 @@ static av_always_inline void ff_lsp2polyf_mips(const double *lsp, double *f, int
"mov.d %[f_j_1], %[f_j_2] \n\t"
"ldc1 %[f_j_2], -16(%[p_f]) \n\t"
"sdc1 %[tmp], 8(%[p_f]) \n\t"
"addiu %[p_f], -8 \n\t"
PTR_ADDIU "%[p_f], -8 \n\t"
"bgtz %[j], ff_lsp2polyf_lp_j%= \n\t"
"ff_lsp2polyf_lp_j_end%=: \n\t"