Krzysztof Parzyszek bea30c6286 Add "Restored" flag to CalleeSavedInfo ...

The liveness-tracking code assumes that the registers that were saved
in the function's prolog are live outside of the function. Specifically,
that registers that were saved are also live-on-exit from the function.
This isn't always the case as illustrated by the LR register on ARM.

Differential Revision: https://reviews.llvm.org/D36160

llvm-svn: 310619

2017-08-10 16:17:32 +00:00

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