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| author | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2016-10-28 20:06:37 +0000 |
|---|---|---|
| committer | Krzysztof Parzyszek <kparzysz@codeaurora.org> | 2016-10-28 20:06:37 +0000 |
| commit | 2717175c99caab6313feb81e71b1f5e9928f92fe (patch) | |
| tree | 1628c0ed39601e788f159a8b8756be6040bfaf56 /llvm/lib/CodeGen/PatchableFunction.cpp | |
| parent | 931bc548e6b6f643370a32306d9d897d19884c37 (diff) | |
| download | bcm5719-llvm-2717175c99caab6313feb81e71b1f5e9928f92fe.tar.gz bcm5719-llvm-2717175c99caab6313feb81e71b1f5e9928f92fe.zip | |
Handle non-~0 lane masks on live-in registers in LivePhysRegs
When LivePhysRegs adds live-in registers, it recognizes ~0 as a special
lane mask indicating the entire register. If the lane mask is not ~0,
it will only add the subregisters that overlap the specified lane mask.
The problem is that if a live-in register does not have subregisters,
and the lane mask is not ~0, it will not be added to the live set.
(The given lane mask may simply be the lane mask of its register class.)
If a register does not have subregisters, add it to the live set if
the lane mask is non-zero.
Differential Revision: https://reviews.llvm.org/D26094
llvm-svn: 285440
Diffstat (limited to 'llvm/lib/CodeGen/PatchableFunction.cpp')
0 files changed, 0 insertions, 0 deletions
