| commit | b712ef9569b36eee697d4122a9bc4491a25d9125 | [log] [tgz] |
|---|---|---|
| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | Fri Jun 17 03:47:30 2011 +0000 |
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | Fri Jun 17 03:47:30 2011 +0000 |
| tree | 3f155aedd7baa2ef306f05ce6aeba85ae2616a99 | |
| parent | f3a789d931de6b5be729c33ff476fb20f0badbb1 [diff] |
Allocate SystemZ callee-saved registers backwards: R13-R6 The reserved R14-R15 are always saved in the prolog, and using CSRs starting from R13 allows them to be saved in one instruction. Thanks to Anton for explaining this. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133233 91177308-0d34-0410-b5e6-96231b3b80d8