[PATCH] D30004: [InstCombin] Continue scanning loaded values through single predecessors

[Jun Bum Lim via Phabricator via llvm-commits]

junbuml added a comment.

I also observed this change was applied pretty widely in my spec2000/2006 and had impacts on the final output code, which means the opportunities are exposed in InstCombin and they are not handled in other places in the whole pipeline; let me try to reduce such case from my spec tests. I added the testcase to describe what this patch do in instcombine itself, not to show the case which can only be handled in instcombine.


https://reviews.llvm.org/D30004