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Failed to compile a "Hello World" program on Windows #10457

@hronro

Description

@hronro

Zig Version

0.9.0

Steps to Reproduce

// src/main.zig

const std = @import("std");
const stdout = std.io.getStdOut().writer();

pub fn main() anyerror!void {
  try stdout.print("Hello World\n", .{});
}

Run zig build on Windows or run zig build -Dtarget=x86_64-windows-gnu on Linux.

Expected Behavior

Build successfully.

Actual Behavior

Got an error:

/lib/std/os/windows.zig:1733:20: error: unable to evaluate constant expression
        .x86_64 => asm volatile (
                   ^

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