The following program crashes on a debug optimized ARM 64 bits build with arguments --no-wasm-ion a5ecb28afc374c14bfeab2a998fc01e3.js: calling: func_0 result: -1125899906842624 calling: func_1 calling: func_2_invoker calling: func_4 result: 1099511627776 calling: func_4_invoker calling: func_6_invoker calling: func_8 calling: func_8_invoker calling: func_10 result: NaN calling: func_13 result: 18446744073709552000 calling: func_16_invoker calling: func_18 result: 33554432 calling: func_18_invoker calling: func_20 calling: func_20_invoker calling: func_22_invoker calling: func_24_invoker calling: func_26_invoker calling: func_28_invoker calling: func_32 result: 39 calling: func_33_invoker calling: func_37_invoker calling: func_40_invoker calling: func_42_invoker calling: func_44_invoker calling: func_46_invoker calling: func_48_invoker calling: func_50 result: 0 calling: func_50_invoker calling: func_53 result: -4 calling: func_54_invoker calling: func_57_invoker calling: func_59_invoker calling: func_61 exception: RuntimeError: unreachable executed calling: func_62 result: 65428 calling: func_63 result: 127 calling: func_64_invoker calling: func_66 calling: func_67 result: 0 calling: func_68 calling: func_70 result: 0 calling: func_71 result: 30565 calling: func_73 calling: func_73_invoker calling: func_78 result: 4294967296 calling: func_79_invoker calling: func_81_invoker calling: func_84_invoker calling: func_86 result: 0 calling: func_87_invoker calling: func_89_invoker calling: func_94_invoker calling: func_98_invoker Assertion failure: entryStack == exitStack, at /home/ben/code/mozilla-inbound/js/src/jit/arm64/vixl/MozSimulator-vixl.cpp:277

[arm64:m3] because this assertion failure should probably block ARM64 Fennec from riding the trains.