| commit | 22480c43504eca3092f79d9b42bdbb1b413e8e53 | [log] [tgz] |
|---|---|---|
| author | Chris Lattner <sabre@nondot.org> | Wed Oct 05 18:30:19 2005 +0000 |
| committer | Chris Lattner <sabre@nondot.org> | Wed Oct 05 18:30:19 2005 +0000 |
| tree | a71efdd3ca74c1b3c5bcbe13f2517b333ef44943 | |
| parent | f5c6e6b7452a4aba6d3067896c3d95c4f9457c87 [diff] |
Fix a bug in the local spiller, where we could take code like this: store r12 -> [ss#2] R3 = load [ss#1] use R3 R3 = load [ss#2] R4 = load [ss#1] and turn it into this code: store R12 -> [ss#2] R3 = load [ss#1] use R3 R3 = R12 R4 = R3 <- oops! The problem was that promoting R3 = load[ss#2] to a copy missed the fact that the instruction invalidated R3 at that point. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23638 91177308-0d34-0410-b5e6-96231b3b80d8