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| author | Dan Gohman <gohman@apple.com> | 2009-11-11 19:48:59 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-11-11 19:48:59 +0000 |
| commit | 64b5d0f46849f74fac5f853bb335de29cf2e1b83 (patch) | |
| tree | e6ff4563185f2980b265bc6de9066f1776c634c4 /llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp | |
| parent | 062c2919494fabd10e68964b571903c8d8577a2c (diff) | |
| download | bcm5719-llvm-64b5d0f46849f74fac5f853bb335de29cf2e1b83.tar.gz bcm5719-llvm-64b5d0f46849f74fac5f853bb335de29cf2e1b83.zip | |
Add support for tail duplication to BranchFolding, and extend
tail merging support to handle more cases.
- Recognize several cases where tail merging is beneficial even when
the tail size is smaller than the generic threshold.
- Make use of MachineInstrDesc::isBarrier to help detect
non-fallthrough blocks.
- Check for and avoid disrupting fall-through edges in more cases.
llvm-svn: 86871
Diffstat (limited to 'llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp')
0 files changed, 0 insertions, 0 deletions
