gistfile1.txt

Eager deoptimization at

t89
CheckMaps t2 [0x245b41a498b1]  deopt
Checks whether value's hidden class matches expected value and deoptimizes if this is not the case.

Deoptimization at CheckMaps usually indicates that the code is polymorphic.

[deoptimizing (DEOPT eager): begin 0x3408a85e68a9 <JS Function parserOnHeadersComplete (SharedFunctionInfo 0xb19052e3e9)> (opt #61) @7, FP to SP delta: 96]
            ;;; deoptimize at 0_384: wrong map
  reading input frame parserOnHeadersComplete => node=10, args=71, height=4; inputs:
      0: 0x3408a85e68a9 ; (frame function) 0x3408a85e68a9 <JS Function parserOnHeadersComplete (SharedFunctionInfo 0xb19052e3e9)>
      1: 0x6b5236792c9 ; rcx 0x6b5236792c9 <an HTTPParser with map 0x245b41a4a2a9>
      2: 0x100000000 ; [fp + 80] 1
      3: 0x100000000 ; [fp + 72] 1
      4: 0x6b5236a1949 ; rax 0x6b5236a1949 <JS Array[2]>
      5: 0x100000000 ; [fp + 56] 1
      6: 0x35e753b7c381 ; rbx 0x35e753b7c381 <String[1]: />
      7: 0x35e753b04139 ; [fp + 40] 0x35e753b04139 <undefined>
      8: 0x35e753b04139 ; [fp + 32] 0x35e753b04139 <undefined>
      9: 0x35e753b043c9 ; [fp + 24] 0x35e753b043c9 <false>
     10: 0x35e753b04361 ; [fp + 16] 0x35e753b04361 <true>
     11: 0x3408a85e2451 ; rdx 0x3408a85e2451 <FixedArray[19]>
     12: 0x6b5236792c9 ; rcx 0x6b5236792c9 <an HTTPParser with map 0x245b41a4a2a9>
     13: 0x35e753b04139 ; (literal 2) 0x35e753b04139 <undefined>
     14: 0x35e753b04139 ; (literal 2) 0x35e753b04139 <undefined>
  translating frame parserOnHeadersComplete => node=71, height=24
    0x7fff5fbf6f20: [top + 128] <- 0x6b5236792c9 ;  0x6b5236792c9 <an HTTPParser with map 0x245b41a4a2a9>  (input #1)
    0x7fff5fbf6f18: [top + 120] <- 0x100000000 ;  1  (input #2)
    0x7fff5fbf6f10: [top + 112] <- 0x100000000 ;  1  (input #3)
    0x7fff5fbf6f08: [top + 104] <- 0x6b5236a1949 ;  0x6b5236a1949 <JS Array[2]>  (input #4)
    0x7fff5fbf6f00: [top + 96] <- 0x100000000 ;  1  (input #5)
    0x7fff5fbf6ef8: [top + 88] <- 0x35e753b7c381 ;  0x35e753b7c381 <String[1]: />  (input #6)
    0x7fff5fbf6ef0: [top + 80] <- 0x35e753b04139 ;  0x35e753b04139 <undefined>  (input #7)
    0x7fff5fbf6ee8: [top + 72] <- 0x35e753b04139 ;  0x35e753b04139 <undefined>  (input #8)
    0x7fff5fbf6ee0: [top + 64] <- 0x35e753b043c9 ;  0x35e753b043c9 <false>  (input #9)
    0x7fff5fbf6ed8: [top + 56] <- 0x35e753b04361 ;  0x35e753b04361 <true>  (input #10)
    0x7fff5fbf6ed0: [top + 48] <- 0x29e1d5b19f1d ;  caller's pc
    0x7fff5fbf6ec8: [top + 40] <- 0x7fff5fbf6f48 ;  caller's fp
    0x7fff5fbf6ec0: [top + 32] <- 0x3408a85e2451 ;  context    0x3408a85e2451 <FixedArray[19]>  (input #11)
    0x7fff5fbf6eb8: [top + 24] <- 0x3408a85e68a9 ;  function    0x3408a85e68a9 <JS Function parserOnHeadersComplete (SharedFunctionInfo 0xb19052e3e9)>  (input #0)
    0x7fff5fbf6eb0: [top + 16] <- 0x6b5236792c9 ;  0x6b5236792c9 <an HTTPParser with map 0x245b41a4a2a9>  (input #12)
    0x7fff5fbf6ea8: [top + 8] <- 0x35e753b04139 ;  0x35e753b04139 <undefined>  (input #13)
    0x7fff5fbf6ea0: [top + 0] <- 0x35e753b04139 ;  0x35e753b04139 <undefined>  (input #14)
[deoptimizing (eager): end 0x3408a85e68a9 <JS Function parserOnHeadersComplete (SharedFunctionInfo 0xb19052e3e9)> @7 => node=71, pc=0x29e1d5c1d540, state=NO_REGISTERS, alignment=no padding, took 0.052 ms]