SKIP: FAILED

<dawn>/src/tint/lang/msl/writer/printer/printer.cc:355 internal compiler error: buf0 = struct @align(8) {
  resolution:vec2<f32> @offset(0)
}

main_out = struct @align(16) {
  x_GLF_color_1:vec4<f32> @offset(0), @location(0)
}

%b1 = block {  # root
  %gl_FragCoord:ptr<private, vec4<f32>, read_write> = var
  %x_7:ptr<uniform, buf0, read> = var @binding_point(0, 0)
  %map:ptr<private, array<i32, 256>, read_write> = var
  %x_GLF_color:ptr<private, vec4<f32>, read_write> = var
}

%main_1 = func():void -> %b2 {
  %b2 = block {
    %pos:ptr<function, vec2<f32>, read_write> = var
    %ipos:ptr<function, vec2<i32>, read_write> = var
    %i:ptr<function, i32, read_write> = var
    %p:ptr<function, vec2<i32>, read_write> = var
    %canwalk:ptr<function, bool, read_write> = var
    %v:ptr<function, i32, read_write> = var
    %directions:ptr<function, i32, read_write> = var
    %j:ptr<function, i32, read_write> = var
    %d:ptr<function, i32, read_write> = var
    %x_59:vec4<f32> = load %gl_FragCoord
    %16:ptr<uniform, vec2<f32>, read> = access %x_7, 0u
    %x_62:vec2<f32> = load %16
    %18:f32 = access %x_59, 0u
    %19:f32 = access %x_59, 1u
    %20:vec2<f32> = construct %18, %19
    %21:vec2<f32> = div %20, %x_62
    store %pos, %21
    %x_65:f32 = load_vector_element %pos, 0u
    %x_69:f32 = load_vector_element %pos, 1u
    %24:f32 = mul %x_65, 16.0f
    %25:i32 = convert %24
    %26:f32 = mul %x_69, 16.0f
    %27:i32 = convert %26
    %28:vec2<i32> = construct %25, %27
    store %ipos, %28
    store %i, 0i
    loop [b: %b3, c: %b4] {  # loop_1
      %b3 = block {  # body
        %x_77:i32 = load %i
        %30:bool = lt %x_77, 256i
        if %30 [t: %b5, f: %b6] {  # if_1
          %b5 = block {  # true
            exit_if  # if_1
          }
          %b6 = block {  # false
            exit_loop  # loop_1
          }
        }
        %x_80:i32 = load %i
        %32:ptr<private, i32, read_write> = access %map, %x_80
        store %32, 0i
        continue %b4
      }
      %b4 = block {  # continuing
        %x_82:i32 = load %i
        %34:i32 = add %x_82, 1i
        store %i, %34
        next_iteration %b3
      }
    }
    store %p, vec2<i32>(0i)
    store %canwalk, true
    store %v, 0i
    loop [b: %b7, c: %b8] {  # loop_2
      %b7 = block {  # body
        %x_104:ptr<function, bool, read_write> = var
        %x_124:ptr<function, bool, read_write> = var
        %x_144:ptr<function, bool, read_write> = var
        %x_164:ptr<function, bool, read_write> = var
        %x_105_phi:ptr<function, bool, read_write> = var
        %x_125_phi:ptr<function, bool, read_write> = var
        %x_145_phi:ptr<function, bool, read_write> = var
        %x_165_phi:ptr<function, bool, read_write> = var
        %x_88:i32 = load %v
        %44:i32 = add %x_88, 1i
        store %v, %44
        store %directions, 0i
        %x_91:i32 = load_vector_element %p, 0u
        %x_92:bool = gt %x_91, 0i
        store %x_105_phi, %x_92
        if %x_92 [t: %b9] {  # if_2
          %b9 = block {  # true
            %x_96:i32 = load_vector_element %p, 0u
            %x_99:i32 = load_vector_element %p, 1u
            %49:i32 = sub %x_96, 2i
            %50:i32 = mul %x_99, 16i
            %51:i32 = add %49, %50
            %52:ptr<private, i32, read_write> = access %map, %51
            %x_103:i32 = load %52
            %54:bool = eq %x_103, 0i
            store %x_104, %54
            %55:bool = load %x_104
            store %x_105_phi, %55
            exit_if  # if_2
          }
        }
        %x_105:bool = load %x_105_phi
        if %x_105 [t: %b10] {  # if_3
          %b10 = block {  # true
            %x_108:i32 = load %directions
            %58:i32 = add %x_108, 1i
            store %directions, %58
            exit_if  # if_3
          }
        }
        %x_111:i32 = load_vector_element %p, 1u
        %x_112:bool = gt %x_111, 0i
        store %x_125_phi, %x_112
        if %x_112 [t: %b11] {  # if_4
          %b11 = block {  # true
            %x_116:i32 = load_vector_element %p, 0u
            %x_118:i32 = load_vector_element %p, 1u
            %63:i32 = sub %x_118, 2i
            %64:i32 = mul %63, 16i
            %65:i32 = add %x_116, %64
            %66:ptr<private, i32, read_write> = access %map, %65
            %x_123:i32 = load %66
            %68:bool = eq %x_123, 0i
            store %x_124, %68
            %69:bool = load %x_124
            store %x_125_phi, %69
            exit_if  # if_4
          }
        }
        %x_125:bool = load %x_125_phi
        if %x_125 [t: %b12] {  # if_5
          %b12 = block {  # true
            %x_128:i32 = load %directions
            %72:i32 = add %x_128, 1i
            store %directions, %72
            exit_if  # if_5
          }
        }
        %x_131:i32 = load_vector_element %p, 0u
        %x_132:bool = lt %x_131, 14i
        store %x_145_phi, %x_132
        if %x_132 [t: %b13] {  # if_6
          %b13 = block {  # true
            %x_136:i32 = load_vector_element %p, 0u
            %x_139:i32 = load_vector_element %p, 1u
            %77:i32 = add %x_136, 2i
            %78:i32 = mul %x_139, 16i
            %79:i32 = add %77, %78
            %80:ptr<private, i32, read_write> = access %map, %79
            %x_143:i32 = load %80
            %82:bool = eq %x_143, 0i
            store %x_144, %82
            %83:bool = load %x_144
            store %x_145_phi, %83
            exit_if  # if_6
          }
        }
        %x_145:bool = load %x_145_phi
        if %x_145 [t: %b14] {  # if_7
          %b14 = block {  # true
            %x_148:i32 = load %directions
            %86:i32 = add %x_148, 1i
            store %directions, %86
            exit_if  # if_7
          }
        }
        %x_151:i32 = load_vector_element %p, 1u
        %x_152:bool = lt %x_151, 14i
        store %x_165_phi, %x_152
        if %x_152 [t: %b15] {  # if_8
          %b15 = block {  # true
            %x_156:i32 = load_vector_element %p, 0u
            %x_158:i32 = load_vector_element %p, 1u
            %91:i32 = add %x_158, 2i
            %92:i32 = mul %91, 16i
            %93:i32 = add %x_156, %92
            %94:ptr<private, i32, read_write> = access %map, %93
            %x_163:i32 = load %94
            %96:bool = eq %x_163, 0i
            store %x_164, %96
            %97:bool = load %x_164
            store %x_165_phi, %97
            exit_if  # if_8
          }
        }
        %x_165:bool = load %x_165_phi
        if %x_165 [t: %b16] {  # if_9
          %b16 = block {  # true
            %x_168:i32 = load %directions
            %100:i32 = add %x_168, 1i
            store %directions, %100
            exit_if  # if_9
          }
        }
        %x_229:ptr<function, bool, read_write> = var
        %x_242:ptr<function, bool, read_write> = var
        %x_281:ptr<function, bool, read_write> = var
        %x_295:ptr<function, bool, read_write> = var
        %x_335:ptr<function, bool, read_write> = var
        %x_348:ptr<function, bool, read_write> = var
        %x_387:ptr<function, bool, read_write> = var
        %x_400:ptr<function, bool, read_write> = var
        %x_230_phi:ptr<function, bool, read_write> = var
        %x_243_phi:ptr<function, bool, read_write> = var
        %x_282_phi:ptr<function, bool, read_write> = var
        %x_296_phi:ptr<function, bool, read_write> = var
        %x_336_phi:ptr<function, bool, read_write> = var
        %x_349_phi:ptr<function, bool, read_write> = var
        %x_388_phi:ptr<function, bool, read_write> = var
        %x_401_phi:ptr<function, bool, read_write> = var
        %x_170:i32 = load %directions
        %118:bool = eq %x_170, 0i
        if %118 [t: %b17, f: %b18] {  # if_10
          %b17 = block {  # true
            store %canwalk, false
            store %i, 0i
            loop [b: %b19, c: %b20] {  # loop_3
              %b19 = block {  # body
                %x_179:i32 = load %i
                %120:bool = lt %x_179, 8i
                if %120 [t: %b21, f: %b22] {  # if_11
                  %b21 = block {  # true
                    exit_if  # if_11
                  }
                  %b22 = block {  # false
                    exit_loop  # loop_3
                  }
                }
                store %j, 0i
                loop [b: %b23, c: %b24] {  # loop_4
                  %b23 = block {  # body
                    %x_186:i32 = load %j
                    %122:bool = lt %x_186, 8i
                    if %122 [t: %b25, f: %b26] {  # if_12
                      %b25 = block {  # true
                        exit_if  # if_12
                      }
                      %b26 = block {  # false
                        exit_loop  # loop_4
                      }
                    }
                    %x_189:i32 = load %j
                    %x_191:i32 = load %i
                    %125:i32 = mul %x_189, 2i
                    %126:i32 = mul %x_191, 2i
                    %127:i32 = mul %126, 16i
                    %128:i32 = add %125, %127
                    %129:ptr<private, i32, read_write> = access %map, %128
                    %x_196:i32 = load %129
                    %131:bool = eq %x_196, 0i
                    if %131 [t: %b27] {  # if_13
                      %b27 = block {  # true
                        %x_200:i32 = load %j
                        %133:i32 = mul %x_200, 2i
                        store_vector_element %p, 0u, %133
                        %x_203:i32 = load %i
                        %135:i32 = mul %x_203, 2i
                        store_vector_element %p, 1u, %135
                        store %canwalk, true
                        exit_if  # if_13
                      }
                    }
                    continue %b24
                  }
                  %b24 = block {  # continuing
                    %x_206:i32 = load %j
                    %137:i32 = add %x_206, 1i
                    store %j, %137
                    next_iteration %b23
                  }
                }
                continue %b20
              }
              %b20 = block {  # continuing
                %x_208:i32 = load %i
                %139:i32 = add %x_208, 1i
                store %i, %139
                next_iteration %b19
              }
            }
            %x_211:i32 = load_vector_element %p, 0u
            %x_213:i32 = load_vector_element %p, 1u
            %142:i32 = mul %x_213, 16i
            %143:i32 = add %x_211, %142
            %144:ptr<private, i32, read_write> = access %map, %143
            store %144, 1i
            exit_if  # if_10
          }
          %b18 = block {  # false
            %x_217:i32 = load %v
            %x_218:i32 = load %directions
            %147:i32 = mod %x_217, %x_218
            store %d, %147
            %x_220:i32 = load %directions
            %x_221:i32 = load %v
            %150:i32 = add %x_221, %x_220
            store %v, %150
            %x_223:i32 = load %d
            %x_224:bool = gte %x_223, 0i
            store %x_230_phi, %x_224
            if %x_224 [t: %b28] {  # if_14
              %b28 = block {  # true
                %x_228:i32 = load_vector_element %p, 0u
                %154:bool = gt %x_228, 0i
                store %x_229, %154
                %155:bool = load %x_229
                store %x_230_phi, %155
                exit_if  # if_14
              }
            }
            %x_230:bool = load %x_230_phi
            store %x_243_phi, %x_230
            if %x_230 [t: %b29] {  # if_15
              %b29 = block {  # true
                %x_234:i32 = load_vector_element %p, 0u
                %x_237:i32 = load_vector_element %p, 1u
                %159:i32 = sub %x_234, 2i
                %160:i32 = mul %x_237, 16i
                %161:i32 = add %159, %160
                %162:ptr<private, i32, read_write> = access %map, %161
                %x_241:i32 = load %162
                %164:bool = eq %x_241, 0i
                store %x_242, %164
                %165:bool = load %x_242
                store %x_243_phi, %165
                exit_if  # if_15
              }
            }
            %x_243:bool = load %x_243_phi
            if %x_243 [t: %b30] {  # if_16
              %b30 = block {  # true
                %x_246:i32 = load %d
                %168:i32 = sub %x_246, 1i
                store %d, %168
                %x_249:i32 = load_vector_element %p, 0u
                %x_251:i32 = load_vector_element %p, 1u
                %171:i32 = mul %x_251, 16i
                %172:i32 = add %x_249, %171
                %173:ptr<private, i32, read_write> = access %map, %172
                store %173, 1i
                %x_256:i32 = load_vector_element %p, 0u
                %x_259:i32 = load_vector_element %p, 1u
                %176:i32 = sub %x_256, 1i
                %177:i32 = mul %x_259, 16i
                %178:i32 = add %176, %177
                %179:ptr<private, i32, read_write> = access %map, %178
                store %179, 1i
                %x_264:i32 = load_vector_element %p, 0u
                %x_267:i32 = load_vector_element %p, 1u
                %182:i32 = sub %x_264, 2i
                %183:i32 = mul %x_267, 16i
                %184:i32 = add %182, %183
                %185:ptr<private, i32, read_write> = access %map, %184
                store %185, 1i
                %x_272:i32 = load_vector_element %p, 0u
                %187:i32 = sub %x_272, 2i
                store_vector_element %p, 0u, %187
                exit_if  # if_16
              }
            }
            %x_275:i32 = load %d
            %x_276:bool = gte %x_275, 0i
            store %x_282_phi, %x_276
            if %x_276 [t: %b31] {  # if_17
              %b31 = block {  # true
                %x_280:i32 = load_vector_element %p, 1u
                %191:bool = gt %x_280, 0i
                store %x_281, %191
                %192:bool = load %x_281
                store %x_282_phi, %192
                exit_if  # if_17
              }
            }
            %x_282:bool = load %x_282_phi
            store %x_296_phi, %x_282
            if %x_282 [t: %b32] {  # if_18
              %b32 = block {  # true
                %x_286:i32 = load_vector_element %p, 0u
                %x_288:i32 = load_vector_element %p, 1u
                %x_291:array<i32, 256> = load %map
                store %map, array<i32, 256>(0i)
                store %map, %x_291
                %197:i32 = sub %x_288, 2i
                %198:i32 = mul %197, 16i
                %199:i32 = add %x_286, %198
                %200:ptr<private, i32, read_write> = access %map, %199
                %x_294:i32 = load %200
                %202:bool = eq %x_294, 0i
                store %x_295, %202
                %203:bool = load %x_295
                store %x_296_phi, %203
                exit_if  # if_18
              }
            }
            %x_296:bool = load %x_296_phi
            if %x_296 [t: %b33] {  # if_19
              %b33 = block {  # true
                %x_299:i32 = load %d
                %206:i32 = sub %x_299, 1i
                store %d, %206
                %x_302:i32 = load_vector_element %p, 0u
                %x_304:i32 = load_vector_element %p, 1u
                %209:i32 = mul %x_304, 16i
                %210:i32 = add %x_302, %209
                %211:ptr<private, i32, read_write> = access %map, %210
                store %211, 1i
                %x_309:i32 = load_vector_element %p, 0u
                %x_311:i32 = load_vector_element %p, 1u
                %214:i32 = sub %x_311, 1i
                %215:i32 = mul %214, 16i
                %216:i32 = add %x_309, %215
                %217:ptr<private, i32, read_write> = access %map, %216
                store %217, 1i
                %x_317:i32 = load_vector_element %p, 0u
                %x_319:i32 = load_vector_element %p, 1u
                %x_321:array<i32, 256> = load %map
                store %map, array<i32, 256>(0i)
                store %map, %x_321
                %221:i32 = sub %x_319, 2i
                %222:i32 = mul %221, 16i
                %223:i32 = add %x_317, %222
                %224:ptr<private, i32, read_write> = access %map, %223
                store %224, 1i
                %x_326:i32 = load_vector_element %p, 1u
                %226:i32 = sub %x_326, 2i
                store_vector_element %p, 1u, %226
                exit_if  # if_19
              }
            }
            %x_329:i32 = load %d
            %x_330:bool = gte %x_329, 0i
            store %x_336_phi, %x_330
            if %x_330 [t: %b34] {  # if_20
              %b34 = block {  # true
                %x_334:i32 = load_vector_element %p, 0u
                %230:bool = lt %x_334, 14i
                store %x_335, %230
                %231:bool = load %x_335
                store %x_336_phi, %231
                exit_if  # if_20
              }
            }
            %x_336:bool = load %x_336_phi
            store %x_349_phi, %x_336
            if %x_336 [t: %b35] {  # if_21
              %b35 = block {  # true
                %x_340:i32 = load_vector_element %p, 0u
                %x_343:i32 = load_vector_element %p, 1u
                %235:i32 = add %x_340, 2i
                %236:i32 = mul %x_343, 16i
                %237:i32 = add %235, %236
                %238:ptr<private, i32, read_write> = access %map, %237
                %x_347:i32 = load %238
                %240:bool = eq %x_347, 0i
                store %x_348, %240
                %241:bool = load %x_348
                store %x_349_phi, %241
                exit_if  # if_21
              }
            }
            %x_349:bool = load %x_349_phi
            if %x_349 [t: %b36] {  # if_22
              %b36 = block {  # true
                %x_352:i32 = load %d
                %244:i32 = sub %x_352, 1i
                store %d, %244
                %x_355:i32 = load_vector_element %p, 0u
                %x_357:i32 = load_vector_element %p, 1u
                %247:i32 = mul %x_357, 16i
                %248:i32 = add %x_355, %247
                %249:ptr<private, i32, read_write> = access %map, %248
                store %249, 1i
                %x_362:i32 = load_vector_element %p, 0u
                %x_365:i32 = load_vector_element %p, 1u
                %252:i32 = add %x_362, 1i
                %253:i32 = mul %x_365, 16i
                %254:i32 = add %252, %253
                %255:ptr<private, i32, read_write> = access %map, %254
                store %255, 1i
                %x_370:i32 = load_vector_element %p, 0u
                %x_373:i32 = load_vector_element %p, 1u
                %258:i32 = add %x_370, 2i
                %259:i32 = mul %x_373, 16i
                %260:i32 = add %258, %259
                %261:ptr<private, i32, read_write> = access %map, %260
                store %261, 1i
                %x_378:i32 = load_vector_element %p, 0u
                %263:i32 = add %x_378, 2i
                store_vector_element %p, 0u, %263
                exit_if  # if_22
              }
            }
            %x_381:i32 = load %d
            %x_382:bool = gte %x_381, 0i
            store %x_388_phi, %x_382
            if %x_382 [t: %b37] {  # if_23
              %b37 = block {  # true
                %x_386:i32 = load_vector_element %p, 1u
                %267:bool = lt %x_386, 14i
                store %x_387, %267
                %268:bool = load %x_387
                store %x_388_phi, %268
                exit_if  # if_23
              }
            }
            %x_388:bool = load %x_388_phi
            store %x_401_phi, %x_388
            if %x_388 [t: %b38] {  # if_24
              %b38 = block {  # true
                %x_392:i32 = load_vector_element %p, 0u
                %x_394:i32 = load_vector_element %p, 1u
                %272:i32 = add %x_394, 2i
                %273:i32 = mul %272, 16i
                %274:i32 = add %x_392, %273
                %275:ptr<private, i32, read_write> = access %map, %274
                %x_399:i32 = load %275
                %277:bool = eq %x_399, 0i
                store %x_400, %277
                %278:bool = load %x_400
                store %x_401_phi, %278
                exit_if  # if_24
              }
            }
            %x_401:bool = load %x_401_phi
            if %x_401 [t: %b39] {  # if_25
              %b39 = block {  # true
                %x_404:i32 = load %d
                %281:i32 = sub %x_404, 1i
                store %d, %281
                %x_407:i32 = load_vector_element %p, 0u
                %x_409:i32 = load_vector_element %p, 1u
                %284:i32 = mul %x_409, 16i
                %285:i32 = add %x_407, %284
                %286:ptr<private, i32, read_write> = access %map, %285
                store %286, 1i
                %x_414:i32 = load_vector_element %p, 0u
                %x_416:i32 = load_vector_element %p, 1u
                %289:i32 = add %x_416, 1i
                %290:i32 = mul %289, 16i
                %291:i32 = add %x_414, %290
                %292:ptr<private, i32, read_write> = access %map, %291
                store %292, 1i
                %x_422:i32 = load_vector_element %p, 0u
                %x_424:i32 = load_vector_element %p, 1u
                %295:i32 = add %x_424, 2i
                %296:i32 = mul %295, 16i
                %297:i32 = add %x_422, %296
                %298:ptr<private, i32, read_write> = access %map, %297
                store %298, 1i
                %x_430:i32 = load_vector_element %p, 1u
                %300:i32 = add %x_430, 2i
                store_vector_element %p, 1u, %300
                exit_if  # if_25
              }
            }
            exit_if  # if_10
          }
        }
        %x_434:i32 = load_vector_element %ipos, 1u
        %x_437:i32 = load_vector_element %ipos, 0u
        %303:i32 = mul %x_434, 16i
        %304:i32 = add %303, %x_437
        %305:ptr<private, i32, read_write> = access %map, %304
        %x_440:i32 = load %305
        %307:bool = eq %x_440, 1i
        if %307 [t: %b40] {  # if_26
          %b40 = block {  # true
            store %x_GLF_color, vec4<f32>(1.0f)
            ret
          }
        }
        continue %b8
      }
      %b8 = block {  # continuing
        %x_444:bool = load %canwalk
        %309:bool = eq %x_444, false
        break_if %309 %b7
      }
    }
    store %x_GLF_color, vec4<f32>(0.0f, 0.0f, 0.0f, 1.0f)
    ret
  }
}
%tint_symbol = @fragment func(%gl_FragCoord_param:vec4<f32> [@position]):main_out -> %b41 {
  %b41 = block {
    store %gl_FragCoord, %gl_FragCoord_param
    %312:void = call %main_1
    %313:vec4<f32> = load %x_GLF_color
    %314:main_out = construct %313
    ret %314
  }
}

unhandled variable address space
********************************************************************
*  The tint shader compiler has encountered an unexpected error.   *
*                                                                  *
*  Please help us fix this issue by submitting a bug report at     *
*  crbug.com/tint with the source program that triggered the bug.  *
********************************************************************