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| author | Hal Finkel <hfinkel@anl.gov> | 2011-12-30 00:34:00 +0000 |
|---|---|---|
| committer | Hal Finkel <hfinkel@anl.gov> | 2011-12-30 00:34:00 +0000 |
| commit | 2e95afa04cd1c89de7e4abaeead66cd8e51ec929 (patch) | |
| tree | 9d3c5d3643df8e1a13804999ee6170ce76241bff /docs/CommandGuide | |
| parent | ed23bdb65fe86cdb7a38c8c1998ec965e6973966 (diff) | |
Cleanup stack/frame register define/kill states. This fixes two bugs:
1. The ST*UX instructions that store and update the stack pointer did not set define/kill on R1. This became a problem when I activated post-RA scheduling (and had incorrectly adjusted the Frames-large test).
2. eliminateFrameIndex did not kill its scavenged temporary register, and this could cause the scavenger to exhaust all available registers (and its emergency spill slot) when there were a lot of CR values to spill. The 2010-02-12-saveCR test has been adjusted to check for this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147359 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'docs/CommandGuide')
0 files changed, 0 insertions, 0 deletions