From e46a686dc237735831cd4ce410a8cbe396ec08ab Mon Sep 17 00:00:00 2001 From: Torok Edwin Date: Sat, 24 Jan 2009 19:30:25 +0000 Subject: [PATCH] add note about possible GEP improvement with fields of size 0. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62925 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Target/README.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/Target/README.txt b/lib/Target/README.txt index c679fd83c0d..78dcb12581c 100644 --- a/lib/Target/README.txt +++ b/lib/Target/README.txt @@ -1683,3 +1683,9 @@ Always foldable for odd constants, what is the rule for even? //===---------------------------------------------------------------------===// +PR 3381: GEP to field of size 0 inside a struct could be turned into GEP +for next field in struct (which is at same address). + +For example: store of float into { {{}}, float } could be turned into a store to +the float directly. +