Re: A problem with LRA

Hi, On Mon, Apr 17, 2017 at 09:11:56PM +0800, comp wrote: >         float b; >         *(int*)&b=a; This is undefined behaviour. Try with -fno-strict-aliasing, does it then work as you expect? Segher

RE: A problem with LRA

comp writes: > Hi all, > I recently have a problem with LRA. > 1 The Bug use case > int a=10; > float c=2.0,d; > main() > { >         float b; >         *(int*)&b=a; >         d=b+c; > } > > 2 The problem description > In the pass LRA, curr_insn_transform () deal with the addition statement d =

gcc-5-20170418 is now available

Snapshot gcc-5-20170418 is now available on ftp://gcc.gnu.org/pub/gcc/snapshots/5-20170418/ and on various mirrors, see http://gcc.gnu.org/mirrors.html for details. This snapshot has been generated from the GCC 5 SVN branch with the following options: svn://gcc.gnu.org/svn/gcc/branches/gcc-5