Mingw32 did supported SSE2 or SSE mode compilation ?

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Roman

Joined: 21 Apr 2012
Posts: 1792

Roman 29 Aug 2024, 17:19

I get FPU instructions, after compiled.
I want compiling code to sse instructions.
How do this ?
My bat file:
C:\MinGW32\bin\mingw32-make.exe -f Makefile CC=gcc config=release32

Or Premake4 set to sse instructions.

29 Aug 2024, 17:19

bitRAKE

Joined: 21 Jul 2003
Posts: 4039
Location: vpcmpistri

bitRAKE 29 Aug 2024, 19:15

Many compiler flags can build closer to your specific target from "-mfpmath=sse" to "-march=native". For a local build I usually just use "-march=native".

Modifying projects makefile:

Code:

CFLAGS += -msse2 -mfpmath=sse

In your Premake4 script, you can modify the buildoptions for your project to include the desired flags:

Code:

solution "MySolution"
    configurations { "Release32" }

    project "MyProject"
        kind "ConsoleApp"
        language "C"
        targetdir "bin/%{cfg.buildcfg}"
        objdir "obj/%{cfg.buildcfg}"

        files { "**.c" }

        configuration "Release32"
            defines { "NDEBUG" }
            optimize "Speed"
            buildoptions { "-msse2", "-mfpmath=sse" }
    end
end

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29 Aug 2024, 19:15

Roman

Joined: 21 Apr 2012
Posts: 1792

Roman 30 Aug 2024, 06:11

Thanks.
I do sse2 dll.
In bat file:
C:\MinGW32\bin\mingw32-make.exe -f Makefile CC=gcc config=release32 pmath=sse

Code:

;was in premake.lua file
 if _OPTIONS["with-ou"] or not _OPTIONS["no-threading-intf"] then
      if _ACTION == "gmake" then
        if os.get() == "windows" then
          buildoptions { "-mthreads" }
          linkoptions { "-mthreads" }
          defines { "HAVE_PTHREAD_ATTR_SETINHERITSCHED=1", "HAVE_PTHREAD_ATTR_SETSTACKLAZY=1" }
        else
          buildoptions { "-pthread" }
          linkoptions { "-pthread" }
        end
      end
    end               
;new variant
 if _OPTIONS["with-ou"] or not _OPTIONS["no-threading-intf"] then
      if _ACTION == "gmake" then
        if os.get() == "windows" then
          buildoptions { "-mthreads","-msse2", "-mfpmath=sse" }
          linkoptions { "-mthreads","-msse2", "-mfpmath=sse" }
          defines { "HAVE_PTHREAD_ATTR_SETINHERITSCHED=1", "HAVE_PTHREAD_ATTR_SETSTACKLAZY=1" }
        else
          buildoptions { "-pthread" }
          linkoptions { "-pthread" }
        end
      end
    end

30 Aug 2024, 06:11

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