test/tint/bug/tint/757.wgsl.expected.ir.msl

#include <metal_stdlib>
using namespace metal;

struct Constants {
  int level;
};

template<typename T, size_t N>
struct tint_array {
  const constant T& operator[](size_t i) const constant { return elements[i]; }
  device T& operator[](size_t i) device { return elements[i]; }
  const device T& operator[](size_t i) const device { return elements[i]; }
  thread T& operator[](size_t i) thread { return elements[i]; }
  const thread T& operator[](size_t i) const thread { return elements[i]; }
  threadgroup T& operator[](size_t i) threadgroup { return elements[i]; }
  const threadgroup T& operator[](size_t i) const threadgroup { return elements[i]; }
  T elements[N];
};

struct Result {
  /* 0x0000 */ tint_array<float, 1> values;
};

struct tint_module_vars_struct {
  const constant Constants* constants;
  texture2d_array<float, access::sample> myTexture;
  device Result* result;
};

#define TINT_ISOLATE_UB(VOLATILE_NAME) \
  {volatile bool VOLATILE_NAME = false; if (VOLATILE_NAME) break;}

void tint_symbol_inner(uint3 GlobalInvocationID, tint_module_vars_struct tint_module_vars) {
  uint flatIndex = (((4u * GlobalInvocationID[2u]) + (2u * GlobalInvocationID[1u])) + GlobalInvocationID[0u]);
  flatIndex = (flatIndex * 1u);
  float4 texel = tint_module_vars.myTexture.read(uint2(int2(GlobalInvocationID.xy)), 0, 0);
  {
    uint i = 0u;
    while(true) {
      TINT_ISOLATE_UB(tint_volatile_false)
      if ((i < 1u)) {
      } else {
        break;
      }
      (*tint_module_vars.result).values[(flatIndex + i)] = texel[0u];
      {
        i = (i + 1u);
      }
      continue;
    }
  }
}

kernel void tint_symbol(uint3 GlobalInvocationID [[thread_position_in_grid]], texture2d_array<float, access::sample> myTexture [[texture(0)]], device Result* result [[buffer(0)]]) {
  tint_module_vars_struct const tint_module_vars = tint_module_vars_struct{.myTexture=myTexture, .result=result};
  tint_symbol_inner(GlobalInvocationID, tint_module_vars);
}