gcc 4.9.1 Submodel Options / Intel 386 and AMD x86-64 Options not set for target

[Andreas Baumgaertner <andreas dot baumgaertner at tisco dot at>]

Hi all,

when building gcc (msys2 / mingw64 package) with the following options

makepkg_mingw64.confg
CFLAGS="-march=sandybridge -mtune=sandybridge -maddress-mode=long -mfpmath=sse"
CXXFLAGS="-march=sandybridge -mtune=sandybridge -masm=intel -maddress-mode=long -mfpmath=sse"

configure (see blow)

I would expect the following target options to be set based on the documentation

-march=cpu-type
'sandybridge'
Intel Sandy Bridge CPU with 64-bit extensions, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AES and PCLMUL instruction set support. 
source: http://gcc.gnu.org/onlinedocs/gcc-4.9.0/gcc/i386-and-x86-64-Options.html#i386-and-x86-64-Options 

But only -march=sandybridge -mtune=sandybridge are set

Thanks,
Andreas

$ gcc -v
Using built-in specs.
COLLECT_GCC=D:\msys64\mingw64\bin\gcc.exe
COLLECT_LTO_WRAPPER=D:/msys64/mingw64/lib/gcc/x86_64-w64-mingw32/4.9.1/lto-wrapper.exe
Target: x86_64-w64-mingw32
Configured with: ../gcc-4.9.1/configure --prefix=/mingw64 --with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32 --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32 --with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include --libexecdir=/mingw64/lib --with-gxx-include-dir=/mingw64/include/c++/4.9.1 --enable-bootstrap --enable-languages=c,lto,c++,objc,obj-c++,fortran,ada --enable-shared --enable-static --enable-libatomic --enable-threads=win32 --enable-graphite --enable-fully-dynamic-string --enable-libstdcxx-time=yes --disable-libstdcxx-pch --disable-libstdcxx-debug --enable-cloog-backend=isl --enable-version-specific-runtime-libs --disable-cloog-version-check --disable-isl-version-check --enable-lto --enable-libgomp --disable-multilib --enable-checking=release --disable-rpath --disable-win32-registry --disable-nls --disable-werror --disable-symvers --with-libiconv --with-system-zlib --with-gmp=/mingw64 --with-mpfr=/mingw64 --with-mpc=/mingw64 --with-isl=/mingw64 --with-cloog=/mingw64 --with-pkgversion='sandybridge-rev4, built by tisco GmbH' --with-bugurl=http://www.tisco.at --with-gnu-as --with-gnu-ld --enable-seh-exceptions --with-arch=sandybridge --with-tune=sandybridge
Thread model: win32
gcc version 4.9.1 (sandybridge-rev4, built by tisco GmbH)

$ gcc -Q --help=target
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                                 [disabled]
  -malign-double                        [enabled]
  -malign-functions=                    0
  -malign-jumps=                        0
  -malign-loops=                        0
  -malign-stringops                     [enabled]
  -march=                               sandybridge
  -masm=                                att
  -mavx                                 [disabled]
  -mavx2                                [disabled]
  -mavx256-split-unaligned-load         [disabled]
  -mavx256-split-unaligned-store        [disabled]
  -mavx512cd                            [disabled]
  -mavx512er                            [disabled]
  -mavx512f                             [disabled]
  -mavx512pf                            [disabled]
  -mbmi                                 [disabled]
  -mbmi2                                [disabled]
  -mbranch-cost=                        0
  -mcld                                 [disabled]
  -mcmodel=                             32
  -mconsole                             [disabled]
  -mcpu=
  -mcrc32                               [disabled]
  -mcx16                                [disabled]
  -mdispatch-scheduler                  [disabled]
  -mdll                                 [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                                [disabled]
  -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                                 [disabled]
  -mmovbe                               [disabled]
  -mms-bitfields                        [enabled]
  -mno-align-stringops                  [disabled]
  -mno-default                          [disabled]
  -mno-fancy-math-387                   [disabled]
  -mno-push-args                        [disabled]
  -mno-red-zone                         [disabled]
  -mno-sse4                             [enabled]
  -mnop-fun-dllimport                   [disabled]
  -momit-leaf-frame-pointer             [disabled]
  -mpc32                                [disabled]
  -mpc64                                [disabled]
  -mpc80                                [disabled]
  -mpclmul                              [disabled]
  -mpe-aligned-commons                  [enabled]
  -mpopcnt                              [disabled]
  -mprefer-avx128                       [disabled]
  -mpreferred-stack-boundary=           0
  -mprefetchwt1                         [disabled]
  -mprfchw                              [disabled]
  -mpush-args                           [enabled]
  -mrdrnd                               [disabled]
  -mrdseed                              [disabled]
  -mrecip                               [disabled]
  -mrecip=
  -mred-zone                            [enabled]
  -mregparm=                            0
  -mrtd                                 [disabled]
  -mrtm                                 [disabled]
  -msahf                                [disabled]
  -msha                                 [disabled]
  -msoft-float                          [disabled]
  -msse                                 [disabled]
  -msse2                                [disabled]
  -msse2avx                             [disabled]
  -msse3                                [disabled]
  -msse4                                [disabled]
  -msse4.1                              [disabled]
  -msse4.2                              [disabled]
  -msse4a                               [disabled]
  -msse5
  -msseregparm                          [disabled]
  -mssse3                               [disabled]
  -mstack-arg-probe                     [enabled]
  -mstack-protector-guard=              tls
  -mstackrealign                        [enabled]
  -mstringop-strategy=                  [default]
  -mtbm                                 [disabled]
  -mthreads                             [disabled]
  -mtls-dialect=                        gnu
  -mtls-direct-seg-refs                 [disabled]
  -mtune-ctrl=
  -mtune=                               sandybridge
  -municode                             [disabled]
  -mveclibabi=                          [default]
  -mvect8-ret-in-mem                    [disabled]
  -mvzeroupper                          [disabled]
  -mwin32                               [disabled]
  -mwindows                             [disabled]
  -mx32                                 [disabled]
  -mxop                                 [disabled]
  -mxsave                               [disabled]
  -mxsaveopt                            [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 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