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Message-ID: <5b7b846f.1c69fb81.fdb19.08eb@mx.google.com>
Date: Mon, 20 Aug 2018 20:18:07 -0700 (PDT)
From: Steven Penny <svnpenn AT gmail DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: [ANNOUNCEMENT] [Updated] mingw64-{i686,x86_64}-gcc-7.3.0-1 (Test)
References: <announce DOT 788f6953-7b20-67c1-1dca-b65a200e0211 AT gmail DOT com>
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User-Agent: Tryst/2.8.0 (cup.github.io/tryst)

On Wed, 18 Jul 2018 10:38:22, JonY wrote:
> The mingw-w64 cross compilers have been updated:
>
> * mingw64-i686-gcc-7.3.0-1
> * mingw64-x86_64-gcc-7.3.0-1
>
> It is available under the test version.

http://cygwin.com/ml/cygwin/2018-07/msg00168.html

Using this file:

    $ cat stoi.cpp
    #include <iostream>
    #include <string>
    main() {
      std::string q = "23456";
      std::cout << std::stoi(q) << std::endl;
    }

I have noticed an issue with the Cygwin "x86_64-w64-mingw32-g++" compiler. If I
strip the executable, all is well:

    $ time x86_64-w64-mingw32-g++ -s -static-libstdc++ stoi.cpp; wc -c a.exe
    real    0m0.889s
    845824 a.exe

Same with Msys2:

    # time x86_64-w64-mingw32-g++ -s -static-libstdc++ stoi.cpp; wc -c a.exe
    real    0m0.718s
    835584 a.exe

However if I do not strip the executable, the compile time nearly triples and
the size increases 10 fold:

    $ time x86_64-w64-mingw32-g++ -static-libstdc++ stoi.cpp; wc -c a.exe
    real    0m2.340s
    11695660 a.exe

Compare with Msys2, where the time only increases 17%, and the size only
increases 3 fold:

    # time x86_64-w64-mingw32-g++ -static-libstdc++ stoi.cpp; wc -c a.exe
    real    0m0.842s
    3001138 a.exe


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