Re: [RFC PATCH] cse: Add another CSE pass after split1

2024-06-29 Thread Jeff Law
On 6/27/24 3:56 PM, Palmer Dabbelt wrote: This is really more of a question than a patch. Looking at PR/115687 I managed to convince myself there's a general class of problems here: splitting might produce constant subexpressions, but as far as I can tell there's nothing to eliminate those

RE: [RFC PATCH] cse: Add another CSE pass after split1

2024-06-28 Thread Tamar Christina
Hi, > -Original Message- > From: Palmer Dabbelt > Sent: Thursday, June 27, 2024 10:57 PM > To: gcc-patches@gcc.gnu.org > Cc: Palmer Dabbelt > Subject: [RFC PATCH] cse: Add another CSE pass after split1 > > This is really more of a question than a patch. > > Looking at PR/115687 I

Re: [RFC PATCH] cse: Add another CSE pass after split1

2024-06-28 Thread Oleg Endo
Hi, On Thu, 2024-06-27 at 14:56 -0700, Palmer Dabbelt wrote: > This is really more of a question than a patch. > > Looking at PR/115687 I managed to convince myself there's a general > class of problems here: splitting might produce constant subexpressions, > but as far as I can tell there's