error: @bitCast size mismatch: destination type 'usize' has 64 bits but source type 'c_long' has 32 bits

[leap0x7b]

Zig Version

0.12.0-dev.3+9c05810be

Steps to Reproduce and Observed Behavior

1. git clone https://github.com/kora-org/headstart
2. zig build -Darch=riscv64

3. This error should pop up:

   zig build-exe headstart Debug riscv64-uefi-msvc: error: the following command failed with 1 compilation errors:
   C:\Users\User\AppData\Local\Microsoft\WinGet\Packages\zig.zig.nightly_Microsoft.Winget.Source_8wekyb3d8bbwe\zig-windows-x86_64-0.12.0-dev.3+9c05810be\zig.exe build-exe D:\Azzam\kora\headstart\src\main.zig -cflags -ffreestanding -nostdlib -mno-red-zone -- D:\Azzam\kora\headstart\external\flanterm\flanterm.c D:\Azzam\kora\headstart\external\flanterm\backends\fb.c --cache-dir D:\Azzam\kora\headstart\zig-cache --global-cache-dir C:\Users\User\AppData\Local\zig --name headstart -mcmodel medium -target riscv64-uefi-msvc -mcpu baseline_rv64 --mod build_options::D:\Azzam\kora\headstart\zig-cache\c\617d0a7ef579f0c5c8f720583a81a2fe\options.zig --deps build_options -I D:\Azzam\kora\headstart\external --listen=- 
   Build Summary: 1/6 steps succeeded; 1 failed (disable with --summary none)
   run transitive failure
   └─ run sh transitive failure
   └─ install transitive failure
     └─ install headstart transitive failure
        └─ zig build-exe headstart Debug riscv64-uefi-msvc 1 errors
   D:\Azzam\kora\headstart\zig-cache\o\ba881674b31c5b5c615cc912c8122d92\cimport.zig:207:175: error: @bitCast size mismatch: destination type 'usize' has 64 bits but source type 'c_long' has 32 bits
   return flanterm_fb_init(null, null, framebuffer, width, height, pitch, null, null, null, null, null, null, null, @as(?*anyopaque, @ptrFromInt(@as(c_int, 0))), @as(usize, @bitCast(@as(c_long, @as(c_int, 0)))), @as(usize, @bitCast(@as(c_long, @as(c_int, 0)))), @as(usize, @bitCast(@as(c_long, @as(c_int, 1)))), @as(usize, @bitCast(@as(c_long, @as(c_int, 1)))), @as(usize, @bitCast(@as(c_long, @as(c_int, 1)))), @as(usize, @bitCast(@as(c_long, @as(c_int, 0)))));
   
                                             ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   referenced by:
   init: src\console\flanterm.zig:11:16
   main: src\main.zig:25:12
   remaining reference traces hidden; use '-freference-trace' to see all reference traces

Expected Behavior

It should compiles fine like in x86_64 and aarch64.

[f-cozzocrea]

I wasn't able to build the project. Could you provide a minimal reproduction of the issue?

[nektro]

test {
    @compileLog(@bitSizeOf(usize));
    @compileLog(@bitSizeOf(c_long));
}

❯ zig test test.zig -target riscv64-linux-gnu
test.zig:22:5: error: found compile log statement

Compile Log Output:
@as(comptime_int, 64)
@as(comptime_int, 64)

[nektro]

❯ zig test test.zig -target riscv64-uefi-msvc

Compile Log Output:
@as(comptime_int, 64)
@as(comptime_int, 32)

[f-cozzocrea]

Here's a test case reproduction. I used a short to reproduce the issue on more platforms, but long also works for me on x86_64-linux:

int main() {
    short s = 42;
    short* s_ptr = &s;
    s_ptr = (short*)s;
}

// run-translated-c