Skip to content

F
ffmpeg.wasm-core
Commit 3a4edb76 authored by Mans Rullgard's avatar Mans Rullgard
Browse files
Options

x86: h264: remove hardcoded edi in decode_significance_8x8_x86() 

Signed-off-by: 's avatarMans Rullgard <mans@mansr.com>
parent b92c1a6d
Show whitespace changes
Inline Side-by-side
Showing with 26 additions and 25 deletions
libavcodec/x86/h264_i386.h
View file @ 3a4edb76
......@@ -107,34 +107,35 @@ static int decode_significance_8x8_x86(CABACContext *c,
int low;
int range;
x86_reg last=0;
x86_reg state;
__asm__ volatile(
"movl %a11(%6), %5 \n\t"
"movl %a12(%6), %3 \n\t"
"movl %a12(%7), %5 \n\t"
"movl %a13(%7), %3 \n\t"
"mov %1, %%"REG_D" \n\t"
"mov %1, %6 \n\t"
"2: \n\t"
"mov %9, %0 \n\t"
"movzbl (%0, %%"REG_D"), %%edi \n\t"
"add %8, %%"REG_D" \n\t"
"mov %10, %0 \n\t"
"movzbl (%0, %6), %k6 \n\t"
"add %9, %6 \n\t"
BRANCHLESS_GET_CABAC("%4", "%6", "(%%"REG_D")", "%3",
"%w3", "%5", "%k0", "%b0", "%a13")
BRANCHLESS_GET_CABAC("%4", "%7", "(%6)", "%3",
"%w3", "%5", "%k0", "%b0", "%a14")
"mov %1, %%edi \n\t"
"mov %1, %k6 \n\t"
"test $1, %4 \n\t"
" jz 3f \n\t"
"movzbl "MANGLE(last_coeff_flag_offset_8x8)"(%%edi), %%edi\n\t"
"add %8, %%"REG_D" \n\t"
"add %10, %%"REG_D" \n\t"
"movzbl "MANGLE(last_coeff_flag_offset_8x8)"(%k6), %k6\n\t"
"add %9, %6 \n\t"
"add %11, %6 \n\t"
BRANCHLESS_GET_CABAC("%4", "%6", "(%%"REG_D")", "%3",
"%w3", "%5", "%k0", "%b0", "%a13")
BRANCHLESS_GET_CABAC("%4", "%7", "(%6)", "%3",
"%w3", "%5", "%k0", "%b0", "%a14")
"mov %2, %0 \n\t"
"mov %1, %%edi \n\t"
"movl %%edi, (%0) \n\t"
"mov %1, %k6 \n\t"
"movl %k6, (%0) \n\t"
"test $1, %4 \n\t"
" jnz 4f \n\t"
......@@ -143,24 +144,24 @@ static int decode_significance_8x8_x86(CABACContext *c,
"mov %0, %2 \n\t"
"3: \n\t"
"addl $1, %%edi \n\t"
"mov %%edi, %1 \n\t"
"cmpl $63, %%edi \n\t"
"addl $1, %k6 \n\t"
"mov %k6, %1 \n\t"
"cmpl $63, %k6 \n\t"
" jb 2b \n\t"
"mov %2, %0 \n\t"
"movl %%edi, (%0) \n\t"
"movl %k6, (%0) \n\t"
"4: \n\t"
"addl %7, %k0 \n\t"
"addl %8, %k0 \n\t"
"shr $2, %k0 \n\t"
"movl %5, %a11(%6) \n\t"
"movl %3, %a12(%6) \n\t"
"movl %5, %a12(%7) \n\t"
"movl %3, %a13(%7) \n\t"
:"=&r"(coeff_count),"+m"(last), "+m"(index), "=&r"(low), "=&r"(bit),
"=&r"(range)
"=&r"(range), "=&r"(state)
:"r"(c), "m"(minusindex), "m"(significant_coeff_ctx_base), "m"(sig_off), "m"(last_off),
"i"(offsetof(CABACContext, range)), "i"(offsetof(CABACContext, low)),
"i"(offsetof(CABACContext, bytestream))
: "%"REG_c, "%"REG_D, "memory"
: "%"REG_c, "memory"
);
return coeff_count;
}
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment