| commit | c96d5c8ac94d52ec5f82269398bca83547030038 | [log] [tgz] |
|---|---|---|
| author | Vladimir Marko <vmarko@google.com> | Thu May 07 15:53:41 2015 +0100 |
| committer | Vladimir Marko <vmarko@google.com> | Thu May 07 19:21:59 2015 +0100 |
| tree | f15680b73a945139e8460669408721861bcb1287 | |
| parent | 3ba8671d60061359fd833f60f7a9dca14878cc0b [diff] |
Quick: Fix DCE to rename SSA regs for degenerate Phis. If we're inserting a new Phi and all its inputs are the same SSA reg (for example, we allow a single-input Phi), some subsequent insn may actually refer to that reg, so we need to rename it to keep the graph in a consistent state. (cherry picked from commit f60715c2c0a2398822a143ffb6b75507bffca703) Change-Id: I46822b0db21c187601b79d2ff1a650494558772a