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Compile math.sinh(), math.cosh(), math.tanh() and math.random().
Compile various io.*() functions.
Drive the GC forward on string allocations in the parser.
Improve KNUM fuse vs. load heuristics.
Add abstract C call handling to IR.
This commit is contained in:
Mike Pall
2009-12-08 20:35:29 +01:00
parent 5287b93264
commit 3f1f9e11f4
44 changed files with 1218 additions and 766 deletions
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52
src/lib_math.c
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@@ -36,9 +36,9 @@ LJLIB_ASM_(math_tan) LJLIB_REC(math_unary IRFPM_TAN)
LJLIB_ASM_(math_asin) LJLIB_REC(math_atrig FF_math_asin)
LJLIB_ASM_(math_acos) LJLIB_REC(math_atrig FF_math_acos)
LJLIB_ASM_(math_atan) LJLIB_REC(math_atrig FF_math_atan)
LJLIB_ASM_(math_sinh)
LJLIB_ASM_(math_cosh)
LJLIB_ASM_(math_tanh)
LJLIB_ASM_(math_sinh) LJLIB_REC(math_htrig IRCALL_sinh)
LJLIB_ASM_(math_cosh) LJLIB_REC(math_htrig IRCALL_cosh)
LJLIB_ASM_(math_tanh) LJLIB_REC(math_htrig IRCALL_tanh)
LJLIB_ASM_(math_frexp)
LJLIB_ASM_(math_modf) LJLIB_REC(.)
@@ -82,35 +82,33 @@ LJ_FUNCA double lj_wrapper_tanh(double x) { return tanh(x); }
*/
/* PRNG state. */
typedef struct TW223State {
struct RandomState {
uint64_t gen[4]; /* State of the 4 LFSR generators. */
int valid; /* State is valid. */
} TW223State;
};
/* Union needed for bit-pattern conversion between uint64_t and double. */
typedef union { uint64_t u64; double d; } U64double;
/* Update generator i and compute a running xor of all states. */
#define TW223_GEN(i, k, q, s) \
z = tw->gen[i]; \
z = rs->gen[i]; \
z = (((z<<q)^z) >> (k-s)) ^ ((z&((uint64_t)(int64_t)-1 << (64-k)))<<s); \
r ^= z; tw->gen[i] = z;
r ^= z; rs->gen[i] = z;
/* PRNG step function. Returns a double in the range 1.0 <= d < 2.0. */
static LJ_NOINLINE double tw223_step(TW223State *tw)
LJ_NOINLINE uint64_t LJ_FASTCALL lj_math_random_step(RandomState *rs)
{
uint64_t z, r = 0;
U64double u;
TW223_GEN(0, 63, 31, 18)
TW223_GEN(1, 58, 19, 28)
TW223_GEN(2, 55, 24, 7)
TW223_GEN(3, 47, 21, 8)
u.u64 = (r & (((uint64_t)1 << 52)-1)) | ((uint64_t)0x3ff << 52);
return u.d;
return (r & U64x(000fffff,ffffffff)) | U64x(3ff00000,00000000);
}
/* PRNG initialization function. */
static void tw223_init(TW223State *tw, double d)
static void random_init(RandomState *rs, double d)
{
uint32_t r = 0x11090601; /* 64-k[i] as four 8 bit constants. */
int i;
@@ -120,22 +118,24 @@ static void tw223_init(TW223State *tw, double d)
r >>= 8;
u.d = d = d * 3.14159265358979323846 + 2.7182818284590452354;
if (u.u64 < m) u.u64 += m; /* Ensure k[i] MSB of gen[i] are non-zero. */
tw->gen[i] = u.u64;
rs->gen[i] = u.u64;
}
tw->valid = 1;
rs->valid = 1;
for (i = 0; i < 10; i++)
tw223_step(tw);
lj_math_random_step(rs);
}
/* PRNG extract function. */
LJLIB_PUSH(top-2) /* Upvalue holds userdata with TW223State. */
LJLIB_CF(math_random)
LJLIB_PUSH(top-2) /* Upvalue holds userdata with RandomState. */
LJLIB_CF(math_random) LJLIB_REC(.)
{
int n = cast_int(L->top - L->base);
TW223State *tw = (TW223State *)(uddata(udataV(lj_lib_upvalue(L, 1))));
RandomState *rs = (RandomState *)(uddata(udataV(lj_lib_upvalue(L, 1))));
U64double u;
double d;
if (LJ_UNLIKELY(!tw->valid)) tw223_init(tw, 0.0);
d = tw223_step(tw) - 1.0;
if (LJ_UNLIKELY(!rs->valid)) random_init(rs, 0.0);
u.u64 = lj_math_random_step(rs);
d = u.d - 1.0;
if (n > 0) {
double r1 = lj_lib_checknum(L, 1);
if (n == 1) {
@@ -150,11 +150,11 @@ LJLIB_CF(math_random)
}
/* PRNG seed function. */
LJLIB_PUSH(top-2) /* Upvalue holds userdata with TW223State. */
LJLIB_PUSH(top-2) /* Upvalue holds userdata with RandomState. */
LJLIB_CF(math_randomseed)
{
TW223State *tw = (TW223State *)(uddata(udataV(lj_lib_upvalue(L, 1))));
tw223_init(tw, lj_lib_checknum(L, 1));
RandomState *rs = (RandomState *)(uddata(udataV(lj_lib_upvalue(L, 1))));
random_init(rs, lj_lib_checknum(L, 1));
return 0;
}
@@ -164,9 +164,9 @@ LJLIB_CF(math_randomseed)
LUALIB_API int luaopen_math(lua_State *L)
{
TW223State *tw;
tw = (TW223State *)lua_newuserdata(L, sizeof(TW223State));
tw->valid = 0; /* Use lazy initialization to save some time on startup. */
RandomState *rs;
rs = (RandomState *)lua_newuserdata(L, sizeof(RandomState));
rs->valid = 0; /* Use lazy initialization to save some time on startup. */
LJ_LIB_REG(L, math);
#if defined(LUA_COMPAT_MOD)
lua_getfield(L, -1, "fmod");