From c04b423f14e8ada1c4c09fa03beed09eced02f43 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Wed, 22 Mar 2006 07:33:46 +0000 Subject: [PATCH] add a note git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26950 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/README.txt | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/lib/Target/README.txt b/lib/Target/README.txt index 2dd46d29cab..c2635dade41 100644 --- a/lib/Target/README.txt +++ b/lib/Target/README.txt @@ -128,3 +128,13 @@ Can be improved in two ways: //===---------------------------------------------------------------------===// Add LSR exit value substitution. It'll probably be a win for Ackermann, etc. + +//===---------------------------------------------------------------------===// + +It would be nice to revert this patch: +http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20060213/031986.html + +And teach the dag combiner enough to simplify the code expanded before +legalize. It seems plausible that this knowledge would let it simplify other +stuff too. +