WASM LLVM crash on std.math.atan2(0, 1)

[sphaerophoria]

Zig Version

0.13.0

Steps to Reproduce and Observed Behavior

With the following file test.zig

const std = @import("std");

pub export fn some_function() f32 {
    return std.math.atan2(0, @as(f32, 1.0));
}

Compiled with zig build-exe -target wasm32-freestanding test.zig -OReleaseSmall

I see a variant of the error

LLVM ERROR: Cannot select: 0x3268c000: i32 = ConstantPool<float 0.000000e+00> 0
In function: some_function
Aborted

This manifests in more complex cases. This was first encountered while calculating the rotation of a line with some code that more resembles

const std = @import("std");

pub export fn some_fn() f32 {
    const ax = 0.3;
    const ay = 0.3;

    const bx = 0.5;
    const by = 0.3;

    const dx: f32 = bx - ax;
    const dy: f32 = by - ay;

    const len = @sqrt(dx * dx + dy * dy);
    return std.math.atan2(dy / len, dx / len);
}

First encountered on zig 0.13.0, but also observed on 0.14.0-dev.311+c50f30038 and 0.12.1

AFAICT this does not manifest on x86_64 (compiling the same function and calling from main), and does not seem to happen unless I turn on optimizations

Expected Behavior

no crash :)

[Vexu]

It compiles successfully.