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Linshizhi
ffmpeg.wasm-core
Commits
324b8adc
Commit
324b8adc
authored
Aug 03, 2011
by
Carl Eugen Hoyos
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Fix a possible miscompilation of cabac with old (broken) compilers.
parent
08d2cee4
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1 changed file
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9 additions
and
3 deletions
+9
-3
cabac.h
libavcodec/x86/cabac.h
+9
-3
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libavcodec/x86/cabac.h
View file @
324b8adc
...
...
@@ -87,13 +87,19 @@
static
av_always_inline
int
get_cabac_inline_x86
(
CABACContext
*
c
,
uint8_t
*
const
state
)
{
int
bit
,
tmp
;
int
bit
,
low
,
range
,
tmp
;
__asm__
volatile
(
"movl %a6(%5), %2
\n\t
"
"movl %a7(%5), %1
\n\t
"
BRANCHLESS_GET_CABAC
(
"%0"
,
"%5"
,
"(%4)"
,
"%1"
,
"%w1"
,
"%2"
,
"%3"
,
"%b3"
,
"%a6"
)
:
"=&r"
(
bit
),
"+&r"
(
c
->
low
),
"+&r"
(
c
->
range
),
"=&q"
(
tmp
)
"%3"
,
"%b3"
,
"%a8"
)
"movl %2, %a6(%5)
\n\t
"
"movl %1, %a7(%5)
\n\t
"
:
"=&r"
(
bit
),
"=&r"
(
low
),
"=&r"
(
range
),
"=&q"
(
tmp
)
:
"r"
(
state
),
"r"
(
c
),
"i"
(
offsetof
(
CABACContext
,
range
)),
"i"
(
offsetof
(
CABACContext
,
low
)),
"i"
(
offsetof
(
CABACContext
,
bytestream
))
:
"%"
REG_c
,
"memory"
);
...
...
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