stage2/lllvm: panic in lowering maxInt(u32) slice end

[nektro]

Zig Version

0.11.0-dev.1584+9ccd8ed0a

Steps to Reproduce and Observed Behavior

const std = @import("std");
const arbitrary_max = std.math.maxInt(u32);

test {
    const a = [_]u8{0};
    const b = &a;
    const c: [*]const u8 = b;
    const d = c[0..arbitrary_max];
    _ = d;
}

thread 3990561 panic: integer cast truncated bits
/home/meghan/src/zig/src/codegen/llvm.zig:1724:48: 0xf1eedd in lowerDebugTypeImpl (zig)
                    @intCast(c_int, ty.arrayLen()),
                                               ^
/home/meghan/src/zig/src/codegen/llvm.zig:1436:36: 0xcb30fd in lowerDebugType (zig)
        return o.lowerDebugTypeImpl(entry, resolve, null);
                                   ^
/home/meghan/src/zig/src/codegen/llvm.zig:1684:65: 0xf1e499 in lowerDebugTypeImpl (zig)
                const elem_di_ty = try o.lowerDebugType(ptr_info.pointee_type, .fwd);
                                                                ^
/home/meghan/src/zig/src/codegen/llvm.zig:1436:36: 0xcb30fd in lowerDebugType (zig)
        return o.lowerDebugTypeImpl(entry, resolve, null);
                                   ^
/home/meghan/src/zig/src/codegen/llvm.zig:1598:59: 0xf1d77b in lowerDebugTypeImpl (zig)
                    const ptr_di_ty = try o.lowerDebugType(bland_ptr_ty, resolve);
                                                          ^
/home/meghan/src/zig/src/codegen/llvm.zig:1436:36: 0xcb30fd in lowerDebugType (zig)
        return o.lowerDebugTypeImpl(entry, resolve, null);
                                   ^
/home/meghan/src/zig/src/codegen/llvm.zig:6175:46: 0x169a7f5 in airDbgVarVal (zig)
            try self.dg.object.lowerDebugType(operand_ty, .full),
                                             ^
/home/meghan/src/zig/src/codegen/llvm.zig:4698:54: 0x114b9f5 in genBody (zig)
                .dbg_var_val => try self.airDbgVarVal(inst),
                                                     ^
/home/meghan/src/zig/src/codegen/llvm.zig:1200:35: 0x11436f6 in updateFunc (zig)
        fg.genBody(air.getMainBody()) catch |err| switch (err) {
                                  ^
/home/meghan/src/zig/src/link/Elf.zig:2451:74: 0x114c34e in updateFunc (zig)
        if (self.llvm_object) |llvm_object| return llvm_object.updateFunc(module, func, air, liveness);
                                                                         ^
/home/meghan/src/zig/src/link.zig:539:77: 0xe9e1de in updateFunc (zig)
            .elf   => return @fieldParentPtr(Elf,   "base", base).updateFunc(module, func, air, liveness),
                                                                            ^
/home/meghan/src/zig/src/Module.zig:4245:37: 0xc5863d in ensureFuncBodyAnalyzed (zig)
            comp.bin_file.updateFunc(mod, func, air, liveness) catch |err| switch (err) {
                                    ^
/home/meghan/src/zig/src/Compilation.zig:3217:42: 0xc55ca5 in processOneJob (zig)
            module.ensureFuncBodyAnalyzed(func) catch |err| switch (err) {
                                         ^
/home/meghan/src/zig/src/Compilation.zig:3155:30: 0xaaf9e7 in performAllTheWork (zig)
            try processOneJob(comp, work_item);
                             ^
/home/meghan/src/zig/src/Compilation.zig:2405:31: 0xaaa68c in update (zig)
    try comp.performAllTheWork(main_progress_node);
                              ^
/home/meghan/src/zig/src/main.zig:3525:20: 0xad2e1d in updateModule (zig)
    try comp.update();
                   ^
/home/meghan/src/zig/src/main.zig:3188:17: 0x9b6a30 in buildOutputType (zig)
    updateModule(gpa, comp, hook) catch |err| switch (err) {
                ^
/home/meghan/src/zig/src/main.zig:269:31: 0x990354 in mainArgs (zig)
        return buildOutputType(gpa, arena, args, .zig_test);
                              ^
/home/meghan/src/zig/src/main.zig:207:20: 0x98f805 in main (zig)
    return mainArgs(gpa, arena, args);
                   ^
/home/meghan/src/zig/lib/std/start.zig:616:37: 0x991ee7 in main (zig)
            const result = root.main() catch |err| {
                                    ^
???:?:?: 0x7ffafc85b236 in ??? (???)
???:?:?: 0x7ffe3acf7e00 in ??? (???)
Aborted (core dumped)

Expected Behavior

all tests passed

[Vexu]

Duplicate of #1424

[nektro]

14627 is the one thats a duplicate, no?

[nektro]

also neither are trying to create an array

[Vexu]

This could be fixed by switching to the C++ API while the other one requires some work from our side and both are creating arrays since slicing with comptime-known bounds creates an array.