From: Duncan Sands Date: Thu, 17 Feb 2011 08:16:56 +0000 (+0000) Subject: This has been implemented. X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fe167c5a145d00a35b980993a514f9056eeefed8;p=oota-llvm.git This has been implemented. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125738 91177308-0d34-0410-b5e6-96231b3b80d8 --- diff --git a/lib/Target/README.txt b/lib/Target/README.txt index 1a33aa8ed8f..4e14fbbb09b 100644 --- a/lib/Target/README.txt +++ b/lib/Target/README.txt @@ -2225,16 +2225,6 @@ avoids partial register stalls in some important cases. //===---------------------------------------------------------------------===// -We should fold compares like this: - - %1266 = add nsw i32 %.84.i.i.i, 1 - %560 = add nsw i32 %556, 1 - %1267 = icmp slt i32 %1266, %560 - -to a single 'icmp slt' when the add's have a single use, since they are NSW. - -//===---------------------------------------------------------------------===// - We don't fold (icmp (add) (add)) unless the two adds only have a single use. There are a lot of cases that we're refusing to fold in (e.g.) 256.bzip2, for example: