wasmtime

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Author	SHA1	Message	Date
Jakob Stoklund Olesen	c82e68efea	Eliminate the ABCD register class constaint in REX encodings. Some REX-less encodings require an ABCD input because they are looking at 8-bit registers. This constraint doesn't apply with a REX prefix where the low 8 bits of all registers are addressable.	2017-09-29 15:29:25 -07:00
Jakob Stoklund Olesen	51a6901a7f	Implement coloring::iterate_solution(). It can happen that the currently live registers are blocking a smaller register class completely, so the only way of solving the allocation problem is to turn some of the live-through registers into solver variables. When the quick_solve attempt fails, try to free up registers in the critical register class by turning live-through values into solver variables.	2017-09-29 14:55:35 -07:00

Author

SHA1

Message

Date

Jakob Stoklund Olesen

c82e68efea

Eliminate the ABCD register class constaint in REX encodings.

Some REX-less encodings require an ABCD input because they are looking
at 8-bit registers. This constraint doesn't apply with a REX prefix
where the low 8 bits of all registers are addressable.

2017-09-29 15:29:25 -07:00

Jakob Stoklund Olesen

51a6901a7f

Implement coloring::iterate_solution().

It can happen that the currently live registers are blocking a smaller
register class completely, so the only way of solving the allocation
problem is to turn some of the live-through registers into solver
variables.

When the quick_solve attempt fails, try to free up registers in the
critical register class by turning live-through values into solver
variables.

2017-09-29 14:55:35 -07:00

2 Commits