DrSocalkwe3n/luajit
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FFI: Record 64 bit integer arithmetic.

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Currently NYI in the x86 backend.
This commit is contained in:
Mike Pall
2011-01-03 03:35:35 +01:00
parent 44a22b9889
commit eaf88dfb3a
3 changed files with 40 additions and 8 deletions
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6
src/lj_cdata.c
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@@ -235,7 +235,6 @@ void lj_cdata_set(CTState *cts, CType *d, uint8_t *dp, TValue *o, CTInfo qual)
uint64_t lj_cdata_powi64(uint64_t x, uint64_t k, int isunsigned)
{
uint64_t y = 0;
int sign = 0;
if (k == 0)
return 1;
if (!isunsigned) {
@@ -249,10 +248,6 @@ uint64_t lj_cdata_powi64(uint64_t x, uint64_t k, int isunsigned)
else
return 0;
}
if ((int64_t)x < 0) {
x = -x;
sign = (k & 1);
}
}
for (; (k & 1) == 0; k >>= 1) x *= x;
y = x;
@@ -265,7 +260,6 @@ uint64_t lj_cdata_powi64(uint64_t x, uint64_t k, int isunsigned)
}
y *= x;
}
if (sign) y = (uint64_t)-(int64_t)y;
return y;
}