From 92cce90c66f9b231275db210f1df97efe21c2dd5 Mon Sep 17 00:00:00 2001 From: Nate Begeman Date: Tue, 6 Sep 2005 15:30:48 +0000 Subject: [PATCH] Add note about future optimization noted in the ppc compiler writer's guide git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23245 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/PowerPC/README.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/Target/PowerPC/README.txt b/lib/Target/PowerPC/README.txt index ffc4d0b4bce..c6c59560eb9 100644 --- a/lib/Target/PowerPC/README.txt +++ b/lib/Target/PowerPC/README.txt @@ -101,3 +101,7 @@ off of the register to avoid the lis's. This is even more important in PIC mode. ===-------------------------------------------------------------------------=== + +Implement Newton-Rhapson method for improving estimate instructions to the +correct accuracy, and implementing divide as multiply by reciprocal when it has +more than one use. Itanium will want this too.