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Add array bounds check elimination (-Oabc, on by default).

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This commit is contained in:
Mike Pall
2010-03-15 17:02:53 +01:00
parent 24402ede04
commit c4727220e8
5 changed files with 100 additions and 19 deletions
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2
src/lj_asm.c
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@@ -2571,7 +2571,7 @@ static void asm_comp_(ASMState *as, IRIns *ir, int cc)
} else {
IRRef lref = ir->op1, rref = ir->op2;
IROp leftop = (IROp)(IR(lref)->o);
lua_assert(irt_isint(ir->t) || (irt_isaddr(ir->t) && (cc & 0xe) == CC_E));
lua_assert(irt_isint(ir->t) || irt_isaddr(ir->t));
/* Swap constants (only for ABC) and fusable loads to the right. */
if (irref_isk(lref) || (!irref_isk(rref) && opisfusableload(leftop))) {
if ((cc & 0xc) == 0xc) cc ^= 3; /* L <-> G, LE <-> GE */