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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-12-04 00:16:04 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2009-12-04 00:16:04 +0000 |
| commit | 6b74e505be1016223e090a6c806f7caa3165a146 (patch) | |
| tree | dcc016454a3e8332b8d9f3e22e331a4ab0073158 /lib/Transforms/Utils/SSAUpdater.cpp | |
| parent | 2e65c29ac64e7b36603d1a1de3d01cdfd2e61e23 (diff) | |
Also attempt trivial coalescing for live intervals that end in a copy.
The coalescer is supposed to clean these up, but when setting up parameters
for a function call, there may be copies to physregs. If the defining
instruction has been LICM'ed far away, the coalescer won't touch it.
The register allocation hint does not always work - when the register
allocator is backtracking, it clears the hints.
This patch takes care of a few more cases that r90163 missed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@90502 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Utils/SSAUpdater.cpp')
0 files changed, 0 insertions, 0 deletions