Gcc¶

Смотрим возможности процессора, которые могут быть использованы компилятором¶

gcc -march=native -Q --help=target

Пример для Intel(R) Core(TM) i5-2450M CPU @ 2.50GHz¶

The following options are target specific:
  -m128bit-long-double                [disabled]
  -m16                                [disabled]
  -m32                                [disabled]
  -m3dnow                             [disabled]
  -m3dnowa                            [disabled]
  -m64                                [enabled]
  -m80387                             [enabled]
  -m8bit-idiv                         [disabled]
  -m96bit-long-double                 [enabled]
  -mabi=                              sysv
  -mabm                               [disabled]
  -maccumulate-outgoing-args          [disabled]
  -maddress-mode=                     short
  -madx                               [disabled]
  -maes                               [enabled]
  -malign-data=                       compat
  -malign-double                      [disabled]
  -malign-functions=                  0
  -malign-jumps=                      0
  -malign-loops=                      0
  -malign-stringops                   [enabled]
  -mandroid                           [disabled]
  -march=                             sandybridge
  -masm=                              att
  -mavx                               [enabled]
  -mavx2                              [disabled]
  -mavx256-split-unaligned-load     [disabled]
  -mavx256-split-unaligned-store     [disabled]
  -mavx512bw                          [disabled]
  -mavx512cd                          [disabled]
  -mavx512dq                          [disabled]
  -mavx512er                          [disabled]
  -mavx512f                           [disabled]
  -mavx512ifma                        [disabled]
  -mavx512pf                          [disabled]
  -mavx512vbmi                        [disabled]
  -mavx512vl                          [disabled]
  -mbionic                            [disabled]
  -mbmi                               [disabled]
  -mbmi2                              [disabled]
  -mbranch-cost=                      0
  -mcld                               [disabled]
  -mclflushopt                        [disabled]
  -mclwb                              [disabled]
  -mcmodel=                           32
  -mcpu=                              
  -mcrc32                             [disabled]
  -mcx16                              [enabled]
  -mdispatch-scheduler                [disabled]
  -mdump-tune-features                [disabled]
  -mf16c                              [disabled]
  -mfancy-math-387                    [enabled]
  -mfentry                            [enabled]
  -mfma                               [disabled]
  -mfma4                              [disabled]
  -mforce-drap                        [disabled]
  -mfp-ret-in-387                     [enabled]
  -mfpmath=                           387
  -mfsgsbase                          [disabled]
  -mfused-madd                        
  -mfxsr                              [enabled]
  -mglibc                             [enabled]
  -mhard-float                        [enabled]
  -mhle                               [disabled]
  -mieee-fp                           [enabled]
  -mincoming-stack-boundary=          0
  -minline-all-stringops              [disabled]
  -minline-stringops-dynamically     [disabled]
  -mintel-syntax                      
  -mlarge-data-threshold=             0x10000
  -mlong-double-128                   [disabled]
  -mlong-double-64                    [disabled]
  -mlong-double-80                    [enabled]
  -mlwp                               [disabled]
  -mlzcnt                             [disabled]
  -mmemcpy-strategy=                  
  -mmemset-strategy=                  
  -mmmx                               [enabled]
  -mmovbe                             [disabled]
  -mmpx                               [disabled]
  -mms-bitfields                      [disabled]
  -mmwaitx                            [disabled]
  -mno-align-stringops                [disabled]
  -mno-default                        [disabled]
  -mno-fancy-math-387                 [disabled]
  -mno-push-args                      [disabled]
  -mno-red-zone                       [disabled]
  -mno-sse4                           [disabled]
  -mnop-mcount                        [disabled]
  -momit-leaf-frame-pointer           [disabled]
  -mpc32                              [disabled]
  -mpc64                              [disabled]
  -mpc80                              [disabled]
  -mpclmul                            [enabled]
  -mpcommit                           [disabled]
  -mpopcnt                            [enabled]
  -mprefer-avx128                     [disabled]
  -mpreferred-stack-boundary=         0
  -mprefetchwt1                       [disabled]
  -mprfchw                            [disabled]
  -mpush-args                         [enabled]
  -mrdrnd                             [disabled]
  -mrdseed                            [disabled]
  -mrecip                             [disabled]
  -mrecip=                            
  -mrecord-mcount                     [disabled]
  -mred-zone                          [enabled]
  -mregparm=                          0
  -mrtd                               [disabled]
  -mrtm                               [disabled]
  -msahf                              [enabled]
  -msha                               [disabled]
  -mskip-rax-setup                    [disabled]
  -msoft-float                        [disabled]
  -msse                               [enabled]
  -msse2                              [enabled]
  -msse2avx                           [disabled]
  -msse3                              [enabled]
  -msse4                              [enabled]
  -msse4.1                            [enabled]
  -msse4.2                            [enabled]
  -msse4a                             [disabled]
  -msse5                              
  -msseregparm                        [disabled]
  -mssse3                             [enabled]
  -mstack-arg-probe                   [disabled]
  -mstack-protector-guard=            tls
  -mstackrealign                      [enabled]
  -mstringop-strategy=                [default]
  -mtbm                               [disabled]
  -mtls-dialect=                      gnu
  -mtls-direct-seg-refs               [enabled]
  -mtune-ctrl=                        
  -mtune=                             sandybridge
  -muclibc                            [disabled]
  -mveclibabi=                        [default]
  -mvect8-ret-in-mem                  [disabled]
  -mvzeroupper                        [disabled]
  -mx32                               [disabled]
  -mxop                               [disabled]
  -mxsave                             [enabled]
  -mxsavec                            [disabled]
  -mxsaveopt                          [enabled]
  -mxsaves                            [disabled]

  Known assembler dialects (for use with the -masm-dialect= option):
    att intel

  Known ABIs (for use with the -mabi= option):
    ms sysv

  Known code models (for use with the -mcmodel= option):
    32 kernel large medium small

  Valid arguments to -mfpmath=:
    387 387+sse 387,sse both sse sse+387 sse,387

  Known data alignment choices (for use with the -malign-data= option):
    abi cacheline compat

  Known vectorization library ABIs (for use with the -mveclibabi= option):
    acml svml

  Known address mode (for use with the -maddress-mode= option):
    long short

  Known stack protector guard (for use with the -mstack-protector-guard= option):
    global tls

  Valid arguments to -mstringop-strategy=:
    byte_loop libcall loop rep_4byte rep_8byte rep_byte unrolled_loop vector_loop

  Known TLS dialects (for use with the -mtls-dialect= option):
    gnu gnu2