From dba4dd1e8da4c168a4dacb47099132f0bad925f4 Mon Sep 17 00:00:00 2001 From: Hans Wennborg Date: Tue, 6 Aug 2019 08:32:33 +0000 Subject: [PATCH] Revert r367941 "Add a note to the release not about a potentially breaking optimization" The note was moved to the release_90 branch in r367997. llvm-svn: 367998 --- llvm/docs/ReleaseNotes.rst | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/llvm/docs/ReleaseNotes.rst b/llvm/docs/ReleaseNotes.rst index 494efd4..7b7972f 100644 --- a/llvm/docs/ReleaseNotes.rst +++ b/llvm/docs/ReleaseNotes.rst @@ -50,19 +50,6 @@ Non-comprehensive list of changes in this release Makes programs 10x faster by doing Special New Thing. -Noteworthy optimizations ------------------------- - -* LLVM will now remove stores to constant memory (since this is a - contradiction) under the assumption the code in question must be dead. This - has proven to be problematic for some C/C++ code bases which expect to be - able to cast away 'const'. This is (and has always been) undefined - behavior, but up until now had not been actively utilized for optimization - purposes in this exact way. For more information, please see: - `bug 42763 _` and - `post commit discussion _`. - - Changes to the LLVM IR ---------------------- -- 2.7.4