rygorous

Why do compilers even bother with exploiting undefinedness signed overflow? And what are those
mysterious cases where it helps?

A lot of people (myself included) are against transforms that aggressively exploit undefined behavior, but
I think it's useful to know what compiler writers are accomplishing by this.

TL;DR: C doesn't work very well if int!=register width, but (for backwards compat) int is 32-bit on all
major 64-bit targets, and this causes quite hairy problems for code generation and optimization in some
fairly common cases. The signed overflow UB exploitation is an attempt to work around this.

twolfson

node_modules/

roxlu

Installing CYGWIN with SSH
  1) Download cygwin setup.exe from http://www.cygwin.com
    - Execute setup.exe
    - Install from internet
    - Root directory: `c:\cygwin` + all users
    - Local package directory: use default value
   - Select a mirror to download files from
   - Select these packages:
     - editors > xemacs 21.4.22-1
     - net > openssh 6.1-p