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It doesn't actually operate on variables.
Reviewed-by: Jason Ekstrand <[email protected]>
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This computes liveness of SSA values, not nir_variables.
Signed-off-by: Kenneth Graunke <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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v2:
- Single statement, by using memset return value as suggested by Ian
Romanick.
- No internal declaration, as suggested by Jason Ekstrand.
- Move macros to a header.
Reviewed-by: Jason Ekstrand <[email protected]>
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This is to enable the code to build with -Werror=vla in the short term,
and enable the code to build with MSVC2013 soon after.
Reviewed-by: Brian Paul <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
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Reviewed-by: Connor Abbott <cwabbott02gmail.com>
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This is a rework of the liveness algorithm using a worklist as suggested by
Connor. Doing so reduces the number of times we walk over the instructions
because we don't have to do an entire pointless walk over the instructions
just to figure out it's time to stop. Also, the stuff after the last loop
in the funciton will only ever get visited once.
Reviewed-by: Connor Abbott <[email protected]>
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The new name is a little longer but less confusing.
Reviewed-by: Connor Abbott <[email protected]>
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Reviewed-by: Connor Abbott <[email protected]>
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Reviewed-by: Connor Abbott <[email protected]>
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