From: Chris Lattner <sabre@nondot.org>
Date: Mon, 14 Jul 2008 00:19:59 +0000 (+0000)
Subject: Add a note.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=10c5d36ca9c737cf043bee6d84b89ffdc51d7d64;p=oota-llvm.git

Add a note.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53535 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/README.txt b/lib/Target/README.txt
index 23572cd6bc5..e9133721f48 100644
--- a/lib/Target/README.txt
+++ b/lib/Target/README.txt
@@ -784,3 +784,15 @@ int test(int x_offs) {
 }
 
 //===---------------------------------------------------------------------===//
+
+Reassociate should turn things like:
+
+int factorial(int X) {
+ return X*X*X*X*X*X*X*X;
+}
+
+into llvm.powi calls, allowing the code generator to produce balanced
+multiplication trees.
+
+//===---------------------------------------------------------------------===//
+