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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-11-21 02:05:21 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-11-21 02:05:21 +0000 |
| commit | bc630aca39a4c39bb246a982ccf4fc033eb760a3 (patch) | |
| tree | 66ea722479106f228d5abb7da6639f6a6592d113 /llvm/test/CodeGen | |
| parent | dbeef0c1612e8c3ff54554f763b4eb762ae23982 (diff) | |
| download | bcm5719-llvm-bc630aca39a4c39bb246a982ccf4fc033eb760a3.tar.gz bcm5719-llvm-bc630aca39a4c39bb246a982ccf4fc033eb760a3.zip | |
Be more clever about calculating live variables through new basic blocks.
When splitting a critical edge, the registers live through the edge are:
- Used in a PHI instruction, or
- Live out from the predecessor, and
- Live in to the successor.
This allows the coalescer to eliminate even more phi joins.
llvm-svn: 89530
Diffstat (limited to 'llvm/test/CodeGen')
0 files changed, 0 insertions, 0 deletions
