On Wed, Oct 1, 2014 at 10:03 AM, Christian Bruel <christian.br...@st.com> wrote: > Hi Ramana, > > Your patch https://gcc.gnu.org/ml/gcc-patches/2012-02/msg01492.html > seems to have not been applied for 4.10. Are there any stoppers or is it > an omission ?
Short answer, no, not an omission. It could not be made to work properly for a few reasons. When I continued with it the problem I was hitting was the assumption that you can branch anywhere. IIRC using an indirect branch wasn't possible because you couldn't find enough registers because of pass ordering issues. Matthew Gretton-Dann and Christophe Lyon at Linaro worked on it for sometime and they hit other problems. There are probably enough mails in the archive to document this history. regards Ramana
