| commit | 9f6a38fc70875e1f6066da05bd2bd38686a73239 | [log] [tgz] |
|---|---|---|
| author | Matthias Braun <matze@braunis.de> | Thu Jan 08 00:21:23 2015 +0000 |
| committer | Matthias Braun <matze@braunis.de> | Thu Jan 08 00:21:23 2015 +0000 |
| tree | ec918c94823d26d7d5cd8014974a666a2d2ae6bb | |
| parent | a065cf13cd6da7ecd142a71957f048f5141d2954 [diff] |
RegisterCoalescer: Do not remove IMPLICIT_DEFS if they are required for subranges. The register coalescer used to remove implicit_defs when they are covered by the main range anyway. With subreg liveness tracking we can't do that anymore in places where the IMPLICIT_DEF is required as begin of a subregister liverange. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225416 91177308-0d34-0410-b5e6-96231b3b80d8