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ARM: simplify inline asm with 64-bit operands

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Signed-off-by: Mans Rullgard <mans@mansr.com>
This commit is contained in:
Mans Rullgard
2011-05-30 16:37:06 +01:00
parent 371266daa3
commit 6bb70dfd74
2 changed files with 13 additions and 17 deletions
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13
libavcodec/arm/mathops.h
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@@ -59,19 +59,16 @@ static inline av_const int MULH(int a, int b)
static inline av_const int64_t MUL64(int a, int b)
{
union { uint64_t x; unsigned hl[2]; } x;
__asm__ ("smull %0, %1, %2, %3"
: "=r"(x.hl[0]), "=r"(x.hl[1]) : "r"(a), "r"(b));
return x.x;
int64_t x;
__asm__ ("smull %Q0, %R0, %1, %2" : "=r"(x) : "r"(a), "r"(b));
return x;
}
#define MUL64 MUL64
static inline av_const int64_t MAC64(int64_t d, int a, int b)
{
union { uint64_t x; unsigned hl[2]; } x = { d };
__asm__ ("smlal %0, %1, %2, %3"
: "+r"(x.hl[0]), "+r"(x.hl[1]) : "r"(a), "r"(b));
return x.x;
__asm__ ("smlal %Q0, %R0, %1, %2" : "+r"(d) : "r"(a), "r"(b));
return d;
}
#define MAC64(d, a, b) ((d) = MAC64(d, a, b))
#define MLS64(d, a, b) MAC64(d, -(a), b)