From 10c5d36ca9c737cf043bee6d84b89ffdc51d7d64 Mon Sep 17 00:00:00 2001 From: Chris Lattner Date: Mon, 14 Jul 2008 00:19:59 +0000 Subject: [PATCH] Add a note. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53535 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/README.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+) 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. + +//===---------------------------------------------------------------------===// + -- 2.34.1