diff --git a/src/Sema.zig b/src/Sema.zig index f3aa861b5c..3def393dfb 100644 --- a/src/Sema.zig +++ b/src/Sema.zig @@ -12469,10 +12469,12 @@ fn zirDiv(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Air.Ins if (maybe_rhs_val) |rhs_val| { if (is_int) { - return sema.addConstant( - resolved_type, - try lhs_val.intDiv(rhs_val, resolved_type, sema.arena, target), - ); + const res = try lhs_val.intDiv(rhs_val, resolved_type, sema.arena, target); + var vector_index: usize = undefined; + if (!(try sema.intFitsInType(block, src, res, resolved_type, &vector_index))) { + return sema.failWithIntegerOverflow(block, src, resolved_type, res, vector_index); + } + return sema.addConstant(resolved_type, res); } else { return sema.addConstant( resolved_type, @@ -12584,10 +12586,12 @@ fn zirDivExact(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Ai if (modulus_val.compareWithZero(.neq)) { return sema.fail(block, src, "exact division produced remainder", .{}); } - return sema.addConstant( - resolved_type, - try lhs_val.intDiv(rhs_val, resolved_type, sema.arena, target), - ); + const res = try lhs_val.intDiv(rhs_val, resolved_type, sema.arena, target); + var vector_index: usize = undefined; + if (!(try sema.intFitsInType(block, src, res, resolved_type, &vector_index))) { + return sema.failWithIntegerOverflow(block, src, resolved_type, res, vector_index); + } + return sema.addConstant(resolved_type, res); } else { const modulus_val = try lhs_val.floatMod(rhs_val, resolved_type, sema.arena, target); if (modulus_val.compareWithZero(.neq)) { @@ -12862,10 +12866,12 @@ fn zirDivTrunc(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Ai if (maybe_rhs_val) |rhs_val| { if (is_int) { - return sema.addConstant( - resolved_type, - try lhs_val.intDiv(rhs_val, resolved_type, sema.arena, target), - ); + const res = try lhs_val.intDiv(rhs_val, resolved_type, sema.arena, target); + var vector_index: usize = undefined; + if (!(try sema.intFitsInType(block, src, res, resolved_type, &vector_index))) { + return sema.failWithIntegerOverflow(block, src, resolved_type, res, vector_index); + } + return sema.addConstant(resolved_type, res); } else { return sema.addConstant( resolved_type, diff --git a/test/cases/compile_errors/div_overflow.zig b/test/cases/compile_errors/div_overflow.zig new file mode 100644 index 0000000000..dd828a42fc --- /dev/null +++ b/test/cases/compile_errors/div_overflow.zig @@ -0,0 +1,11 @@ +comptime { + const a = -128; + const b: i8 = -1; + _ = a / b; +} + +// error +// backend=stage2 +// target=native +// +// :4:11: error: overflow of integer type 'i8' with value '128'