Bug 20381 – [REG master 2.089+] compiler crash on array operation

The following code crashes --- void ice(ubyte[1] data) { ubyte[1] and = data[] & [42]; } void main() {} --- with core.exception.AssertError@dmd/src/dmd/e2ir.d(2173): Assertion failure ---------------- ??:? _d_assertp [0x842141] dmd/src/dmd/e2ir.d:2176 _ZN6toElem13ToElemVisitor9toElemBinEP6BinExpi [0x761d42] dmd/src/dmd/e2ir.d:3473 _ZN6toElem13ToElemVisitor5visitEP6AndExp [0x766c7e] dmd/src/dmd/expression.d:6220 _ZN6AndExp6acceptEP7Visitor [0x657505] dmd/src/dmd/e2ir.d:5581 _Z6toElemP10ExpressionP7IRState [0x75e6bd] dmd/src/dmd/e2ir.d:4189 _ZN6toElem13ToElemVisitor5visitEP7CastExp [0x768d5c] dmd/src/dmd/expression.d:5152 _ZN7CastExp6acceptEP7Visitor [0x6555b9] dmd/src/dmd/e2ir.d:5581 _Z6toElemP10ExpressionP7IRState [0x75e6bd] dmd/src/dmd/e2ir.d:2799 _ZN6toElem13ToElemVisitor5visitEP9AssignExp [0x76436d] dmd/src/dmd/visitor.d:84 _ZN7Visitor5visitEP12ConstructExp [0x744b2d] dmd/src/dmd/expression.d:5776 _ZN12ConstructExp6acceptEP7Visitor [0x656985] dmd/src/dmd/e2ir.d:5581 _Z6toElemP10ExpressionP7IRState [0x75e6bd] dmd/src/dmd/e2ir.d:5322 _ZN6toElem13ToElemVisitor14Dsymbol_toElemEP7Dsymbol [0x76be4d] dmd/src/dmd/e2ir.d:1380 _ZN6toElem13ToElemVisitor5visitEP14DeclarationExp [0x75f449] dmd/src/dmd/expression.d:3904 _ZN14DeclarationExp6acceptEP7Visitor [0x6527c9] dmd/src/dmd/e2ir.d:5581 _Z6toElemP10ExpressionP7IRState [0x75e6bd] dmd/src/dmd/e2ir.d:5964 _Z10toElemDtorP10ExpressionP7IRState [0x76dae0] dmd/src/dmd/s2ir.d:755 _ZN11S2irVisitor5visitEP12ExpStatement [0x7562b2] dmd/src/dmd/statement.d:745 _ZN12ExpStatement6acceptEP7Visitor [0x7145e5] dmd/src/dmd/s2ir.d:1502 _ZN11S2irVisitor14Statement_toIREP9StatementP7IRState [0x7582e1] dmd/src/dmd/s2ir.d:769 _ZN11S2irVisitor5visitEP17CompoundStatement [0x75633b] dmd/src/dmd/statement.d:937 _ZN17CompoundStatement6acceptEP7Visitor [0x714f01] dmd/src/dmd/s2ir.d:1521 _Z14Statement_toIRP9StatementP7IRState [0x75839c] dmd/src/dmd/glue.d:1156 _Z25FuncDeclaration_toObjFileP15FuncDeclarationb [0x74b82e] dmd/src/dmd/toobj.d:312 _ZN9toObjFile9ToObjFile5visitEP15FuncDeclaration [0x7592e8] dmd/src/dmd/func.d:2504 _ZN15FuncDeclaration6acceptEP7Visitor [0x686581] dmd/src/dmd/toobj.d:1020 _Z9toObjFileP7Dsymbolb [0x75924e] dmd/src/dmd/glue.d:392 _Z10genObjFileP6Moduleb [0x749dc7] dmd/src/dmd/mars.d:681 int dmd.mars.tryMain(ulong, const(char)**, ref dmd.globals.Param) [0x6ced39] dmd/src/dmd/mars.d:921 _Dmain [0x6cfc71] The crashes doesn't happen if 42 is cast to ubyte or using ubyte(42). DMD version used: DMD v2.089.0-10-g44cd826a0

problem is more complex, this is only the surface