search for: hde0lovbk0jqwq2vtn1x_3hlhfpvk

...from Chandler's comment in https://llvm.org/bugs/show_bug.cgi?id=22473<https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D22473&d=CwMGaQ&c=5VD0RTtNlTh3ycd41b3MUw&r=kOsLCgQzH7N8ptZ7diJD9g&m=4GlWLa5X3i08opHX4qEinKM5A85qGzRUacht2PVZxT8&s=hdE0lOvbk0jqWq2vtN1X_3HLHfpvK-z49XSU3LyY6kU&e=> Ø We need to add a pass that replaces movb (and movw) with movzbl (and movzwl) when the destination is a register and the high bytes aren't used. I have created such a pass, and have it working in a local workspace of mine. However, I think that the way it attempts...

Hi Taewook - There's a discussion about the underlying x86 micro-arch details here: http://comments.gmane.org/gmane.comp.compilers.llvm.cvs/167221 The conclusion was that we should change how we currently handle these, but we don't want to regress the case that was addressed by: http://reviews.llvm.org/rL195496 There are open bugs with more discussion related to this: