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avutil/mips: Use MMI_{L, S}QC1 macro in {SAVE, RECOVER}_REG

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{SAVE,RECOVER}_REG will be available for Loongson2 again,
also comment about the magic.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Shiyou Yin <yinshiyou-hf@loongson.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Jiaxun Yang 2021-07-23 13:53:41 +08:00 committed by Michael Niedermayer
parent 65f9a8e4b8
commit b868272d7e
1 changed files with 17 additions and 15 deletions
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32
libavutil/mips/mmiutils.h
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@ -204,25 +204,27 @@
#endif /* HAVE_LOONGSON2 */
/**
* backup register
* Backup saved registers
* We're not using compiler's clobber list as it's not smart enough
* to take advantage of quad word load/store.
*/
#define BACKUP_REG \
LOCAL_ALIGNED_16(double, temp_backup_reg, [8]); \
if (_MIPS_SIM == _ABI64) \
__asm__ volatile ( \
"gssqc1 $f25, $f24, 0x00(%[temp]) \n\t" \
"gssqc1 $f27, $f26, 0x10(%[temp]) \n\t" \
"gssqc1 $f29, $f28, 0x20(%[temp]) \n\t" \
"gssqc1 $f31, $f30, 0x30(%[temp]) \n\t" \
MMI_SQC1($f25, $f24, %[temp], 0x00) \
MMI_SQC1($f27, $f26, %[temp], 0x10) \
MMI_SQC1($f29, $f28, %[temp], 0x20) \
MMI_SQC1($f31, $f30, %[temp], 0x30) \
: \
: [temp]"r"(temp_backup_reg) \
: "memory" \
); \
else \
__asm__ volatile ( \
"gssqc1 $f22, $f20, 0x00(%[temp]) \n\t" \
"gssqc1 $f26, $f24, 0x10(%[temp]) \n\t" \
"gssqc1 $f30, $f28, 0x20(%[temp]) \n\t" \
MMI_SQC1($f22, $f20, %[temp], 0x10) \
MMI_SQC1($f26, $f24, %[temp], 0x10) \
MMI_SQC1($f30, $f28, %[temp], 0x20) \
: \
: [temp]"r"(temp_backup_reg) \
: "memory" \
@ -234,19 +236,19 @@
#define RECOVER_REG \
if (_MIPS_SIM == _ABI64) \
__asm__ volatile ( \
"gslqc1 $f25, $f24, 0x00(%[temp]) \n\t" \
"gslqc1 $f27, $f26, 0x10(%[temp]) \n\t" \
"gslqc1 $f29, $f28, 0x20(%[temp]) \n\t" \
"gslqc1 $f31, $f30, 0x30(%[temp]) \n\t" \
MMI_LQC1($f25, $f24, %[temp], 0x00) \
MMI_LQC1($f27, $f26, %[temp], 0x10) \
MMI_LQC1($f29, $f28, %[temp], 0x20) \
MMI_LQC1($f31, $f30, %[temp], 0x30) \
: \
: [temp]"r"(temp_backup_reg) \
: "memory" \
); \
else \
__asm__ volatile ( \
"gslqc1 $f22, $f20, 0x00(%[temp]) \n\t" \
"gslqc1 $f26, $f24, 0x10(%[temp]) \n\t" \
"gslqc1 $f30, $f28, 0x20(%[temp]) \n\t" \
MMI_LQC1($f22, $f20, %[temp], 0x10) \
MMI_LQC1($f26, $f24, %[temp], 0x10) \
MMI_LQC1($f30, $f28, %[temp], 0x20) \
: \
: [temp]"r"(temp_backup_reg) \
: "memory" \