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FFI: Fix and optimize recording of cdata[cdata].

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This commit is contained in:
Mike Pall
2011-03-10 01:41:58 +01:00
parent 1c9981ae4c
commit 3f26e3a89d
2 changed files with 41 additions and 4 deletions
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30
src/lj_opt_fold.c
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@@ -897,6 +897,16 @@ LJFOLDF(simplify_conv_i64_num)
return NEXTFOLD;
}
LJFOLD(CONV CONV IRCONV_INT_I64) /* _INT */
LJFOLD(CONV CONV IRCONV_INT_U64) /* _INT */
LJFOLDF(simplify_conv_int_i64)
{
PHIBARRIER(fleft);
if ((fleft->op2 & IRCONV_SRCMASK) == IRT_INT)
return fleft->op1;
return NEXTFOLD;
}
/* Shortcut TOBIT + IRT_NUM <- IRT_INT/IRT_U32 conversion. */
LJFOLD(TOBIT CONV KNUM)
LJFOLDF(simplify_tobit_conv)
@@ -956,6 +966,26 @@ LJFOLDF(simplify_conv_sext)
return NEXTFOLD;
}
/* Strength reduction of narrowing. */
LJFOLD(CONV ADD IRCONV_INT_I64)
LJFOLD(CONV SUB IRCONV_INT_I64)
LJFOLD(CONV MUL IRCONV_INT_I64)
LJFOLD(CONV ADD IRCONV_INT_U64)
LJFOLD(CONV SUB IRCONV_INT_U64)
LJFOLD(CONV MUL IRCONV_INT_U64)
LJFOLDF(simplify_conv_narrow)
{
IROp op = (IROp)fleft->o;
IRRef op1 = fleft->op1, op2 = fleft->op2, mode = fins->op2;
PHIBARRIER(fleft);
op1 = emitir(IRTI(IR_CONV), op1, mode);
op2 = emitir(IRTI(IR_CONV), op2, mode);
fins->ot = IRTI(op);
fins->op1 = op1;
fins->op2 = op2;
return RETRYFOLD;
}
/* Special CSE rule for CONV. */
LJFOLD(CONV any any)
LJFOLDF(cse_conv)