MSL: invalid codegen, when using rayquery

[Try]

When RQ is accessed by function:

// GLSL
#version 460

#extension GL_ARB_separate_shader_objects : enable
#extension GL_EXT_ray_query : enable

layout(location = 0) in  vec4 inPos;
layout(location = 0) out vec4 outColor;

layout(binding = 0) uniform accelerationStructureEXT topLevelAS;

uint doRay(vec3 rayOrigin, vec3 rayDirection, float rayDistance) {
  rayQueryEXT rayQuery;
  rayQueryInitializeEXT(rayQuery, topLevelAS, gl_RayFlagsTerminateOnFirstHitEXT, 0xFF,
                        rayOrigin, 0.001, rayDirection, rayDistance);

  while(rayQueryProceedEXT(rayQuery))
    ;

  return rayQueryGetIntersectionTypeEXT(rayQuery, true);
  }

void main() {
  vec3  rayOrigin    = vec3(inPos.xy*4.0-vec2(2.0),1.0);
  vec3  rayDirection = vec3(0,0,-1);
  float rayDistance  = 2.0;

  if(doRay(rayOrigin,rayDirection,rayDistance) == gl_RayQueryCommittedIntersectionNoneEXT)
    discard;

  outColor = inPos;
  }

Resulting MSL:

#pragma clang diagnostic ignored "-Wmissing-prototypes"
#include <metal_stdlib>
#include <simd/simd.h>
#if __METAL_VERSION__ >= 230
#include <metal_raytracing>
using namespace metal::raytracing;
#endif
using namespace metal;
struct main0_out
{
    float4 outColor [[color(0)]];
};
struct main0_in
{
    float4 inPos [[user(locn0)]];
};
static inline __attribute__((always_inline))
uint doRay(thread const float3& rayOrigin, thread const float3& rayDirection, thread const float& rayDistance, thread const instance_acceleration_structure& topLevelAS)
{
    // rayQuery is defined in main, but not in here
    rayQuery.reset(ray(rayOrigin, rayDirection, 0.001000000047497451305389404296875, rayDistance), topLevelAS, intersection_params());
    for (;;)
    {
        bool _36 = rayQuery.next();
        if (_36)
        {
            continue;
        }
        else
        {
            break;
        }
    }
    uint _40 = uint(rayQuery.get_committed_intersection_type());
    return _40;
}
fragment main0_out main0(main0_in in [[stage_in]], instance_acceleration_structure topLevelAS [[buffer(0)]])
{
    main0_out out = {};
    float3 rayOrigin = float3((in.inPos.xy * 4.0) - float2(2.0), 1.0);
    float3 rayDirection = float3(0.0, 0.0, -1.0);
    float rayDistance = 2.0;
    float3 param = rayOrigin;
    float3 param_1 = rayDirection;
    float param_2 = rayDistance;
    uint _70 = doRay(param, param_1, param_2, topLevelAS);
    intersection_query<instancing, triangle_data> rayQuery;
    if (_70 == 0u)
    {
        discard_fragment();
    }
    out.outColor = in.inPos;
    return out;
}

Error:

"program_source:25:5: error: use of undeclared identifier 'rayQuery'
    rayQuery.reset(ray(rayOrigin, rayDirection, 0.001000000047497451305389404296875, rayDistance), topLevelAS, intersection_params());
    ^
program_source:28:20: error: use of undeclared identifier 'rayQuery'
        bool _36 = rayQuery.next();
                   ^
program_source:38:21: error: use of undeclared identifier 'rayQuery'
    uint _40 = uint(rayQuery.get_committed_intersection_type());

[HansKristian-Work]

Most likely the rayquery object is promoted to a global variable and needs to be passed down.