Mercurial > projects > ddmd
view dmd/ShlExp.d @ 184:9f4e5ac4f0a3
One step closer to building on posix.
There are two missing symbols so it actually doesn't build
but previously it didn't build correctly anyway.
author | Jacob Carlborg <doob@me.com> |
---|---|
date | Tue, 02 Nov 2010 08:46:11 +0100 |
parents | e3afd1303184 |
children | b0d41ff5e0df |
line wrap: on
line source
module dmd.ShlExp; import dmd.common; import dmd.Expression; import dmd.Identifier; import dmd.backend.elem; import dmd.InterState; import dmd.Loc; import dmd.Scope; import dmd.IntRange; import dmd.IRState; import dmd.BinExp; import dmd.TOK; import dmd.Id; import dmd.Type; import dmd.expression.shift_optimize; import dmd.expression.Shl; import dmd.expression.Util; import dmd.backend.OPER; class ShlExp : BinExp { this(Loc loc, Expression e1, Expression e2) { register(); super(loc, TOK.TOKshl, ShlExp.sizeof, e1, e2); } override Expression semantic(Scope sc) { Expression e; //printf("ShlExp.semantic(), type = %p\n", type); if (!type) { BinExp.semanticp(sc); e = op_overload(sc); if (e) return e; e1 = e1.checkIntegral(); e2 = e2.checkIntegral(); e1 = e1.integralPromotions(sc); e2 = e2.castTo(sc, Type.tshiftcnt); type = e1.type; } return this; } override Expression optimize(int result) { //printf("ShlExp::optimize(result = %d) %s\n", result, toChars()); return shift_optimize(result, this, &Shl); } override Expression interpret(InterState istate) { return interpretCommon(istate, &Shl); } override IntRange getIntRange() { IntRange ir; IntRange ir1 = e1.getIntRange(); IntRange ir2 = e2.getIntRange(); ir.imin = getMask(ir1.imin) << ir2.imin; ir.imax = getMask(ir1.imax) << ir2.imax; ir.imin &= type.sizemask(); ir.imax &= type.sizemask(); //printf("ShlExp: imin = x%llx, imax = x%llx\n", ir.imin, ir.imax); //e1.dump(0); return ir; } override Identifier opId() { return Id.shl; } override Identifier opId_r() { return Id.shl_r; } override elem* toElem(IRState* irs) { return toElemBin(irs, OPER.OPshl); } }