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Segmentation fault when defining custom panic handler #12935

Description

@simonwuelker

Zig Version

0.10.0-dev.4161+dab5bb924

Steps to Reproduce

src/main.zig:

const std = @import("std");

pub fn main() !void {
}

pub fn panic(msg: []const u8, error_return_trace: ?*std.builtin.StackTrace) noreturn {
    const first_trace_addr = @returnAddress();
    std.debug.panicImpl(error_return_trace, first_trace_addr, msg);
}

Expected Behavior

$ zig build-exe src/main.zig

Actual Behavior

$ zig build-exe src/main.zig
Segmentation fault (core dumped)

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    bugObserved behavior contradicts documented or intended behaviorfrontendTokenization, parsing, AstGen, Sema, and Liveness.

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