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Zino Benaissa 60b15062e1 [BOLT] Dump dynamic execution per instruction opcode 
Summary:
We extended DynoStats to dump the histogram per instruction opcode. By
default the dump is turned off. Use '-print-dyno-opcode-stats' to enable
the dump.

BOLT also dumps for each instruction opcode the maximum execution count and
corresponding function name and basic block offsets where the instruction
occurs. Below is a sample of the dump:

                   Opcode,    Execution Count,      Max Exec Count, Function Name:Offset
                  SHR8rCL,                232,                 232, _ZNK5folly14AsyncSSLSocket4goodEv:53
                VPADDDYrr,              13956,                 388, chacha20_encrypt_bytes.part.0/3:736
               PMOVSXBWrr,                  4,                   2, ares_expand_name/1:264
                VMOVAPSmr,               1082,                  43, chacha20_encrypt_bytes.part.0/3:2864
                VPSHUFBrr,               9540,                1667, chacha20_encrypt_bytes.part.0/3:4416
            VPUNPCKLDQYrr,               1102,                 188, jsimd_ycc_rgb_convert_avx2/1:125
          VPBROADCASTQYrm,                 39,                  39, chacha20_encrypt_bytes.part.0/3:400
               PMOVSXWDrr,                  8,                   2, ares_expand_name/1:264
                   VPORrr,                817,                 129, jsimd_idct_islow_avx2/1:41
                  PSLLDri,            8690752,               65644, blockmix_salsa8_xor/1:1424

(cherry picked from FBD28859624)
 		2021-05-24 21:33:43 -07:00
bolt [BOLT] Dump dynamic execution per instruction opcode 2021-05-24 21:33:43 -07:00