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Re: [ANNOUNCEMENT] [Updated] mingw64-{i686,x86_64}-gcc-7.3.0-1 (Test)
- From: Steven Penny <svnpenn at gmail dot com>
- To: cygwin at cygwin dot com
- Date: Mon, 20 Aug 2018 20:18:07 -0700 (PDT)
- Subject: Re: [ANNOUNCEMENT] [Updated] mingw64-{i686,x86_64}-gcc-7.3.0-1 (Test)
- References: <announce.788f6953-7b20-67c1-1dca-b65a200e0211@gmail.com>
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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