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| author | Manman Ren <manman.ren@gmail.com> | 2014-02-28 23:05:31 +0000 |
|---|---|---|
| committer | Manman Ren <manman.ren@gmail.com> | 2014-02-28 23:05:31 +0000 |
| commit | 5de568068963748c789a42777f1e7f9fade7403b (patch) | |
| tree | cf769e8cf85db73df7943eae92990fdabffd878f /test/MC | |
| parent | c1d2eda56567d3e1d8e3b85f06a5c3bd068ae29d (diff) | |
| download | llvm-5de568068963748c789a42777f1e7f9fade7403b.tar.gz llvm-5de568068963748c789a42777f1e7f9fade7403b.tar.bz2 llvm-5de568068963748c789a42777f1e7f9fade7403b.tar.xz | |
SpillPlacement: fix a bug in iterate.
Inside iterate, we scan backwards then scan forwards in a loop. When iteration
is not zero, the last node was just updated so we can skip it. But when
iteration is zero, we can't skip the last node.
For the testing case, fixing this will save a spill and move register copies
from hot path to cold path.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202557 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/MC')
0 files changed, 0 insertions, 0 deletions