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

#include <metal_stdlib>

using namespace metal;

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];
};

#define TINT_ISOLATE_UB(VOLATILE_NAME) \
  volatile bool VOLATILE_NAME = true; \
  if (VOLATILE_NAME)

struct Constants {
  int level;
};

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

void tint_symbol_inner(uint3 GlobalInvocationID, texture2d_array<float, access::sample> tint_symbol_1, device Result* const tint_symbol_2) {
  uint flatIndex = (((4u * GlobalInvocationID[2]) + (2u * GlobalInvocationID[1])) + GlobalInvocationID[0]);
  flatIndex = (flatIndex * 1u);
  float4 texel = tint_symbol_1.read(uint2(int2(GlobalInvocationID.xy)), 0, 0);
  TINT_ISOLATE_UB(tint_volatile_true) for(uint i = 0u; (i < 1u); i = (i + 1u)) {
    (*(tint_symbol_2)).values[(flatIndex + i)] = texel[0];
  }
}

kernel void tint_symbol(texture2d_array<float, access::sample> tint_symbol_3 [[texture(0)]], device Result* tint_symbol_4 [[buffer(0)]], uint3 GlobalInvocationID [[thread_position_in_grid]]) {
  tint_symbol_inner(GlobalInvocationID, tint_symbol_3, tint_symbol_4);
  return;
}