wasmtime

T0b1/wasmtime

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Author	SHA1	Message	Date
Dan Gohman	10dcfcacdb	Remove support for entity variables in filecheck. Now that the parser doesn't renumber indices, there's no need for entity variables like $v0.	2018-02-20 17:27:46 -08:00
Jakob Stoklund Olesen	dcad3fa339	Fix coloring bug with combined constraints and global values. The Intel instruction "v1 = ushr v2, v2" will implicitly fix the output register for v2 to %rcx because the output is tied to the first input operand and the second input operand is fixed to %rcx. Make sure we handle this transitive constraint when checking for interference with the globally live registers. Fixes #218	2018-01-17 15:51:08 -08:00
Jakob Stoklund Olesen	0a6500c99a	Avoid making solver variables for fixed input constraints. When the coloring pass sees an instruction with a fixed input register constraint that is already satisfied, make sure to tell the solver about it anyway. There are situations where the solver wants to convert a value to a solver variable, and we can't allow that if the same value is also used for a fixed register operand. Fixes #221.	2018-01-17 15:01:00 -08:00

Author

SHA1

Message

Date

Dan Gohman

10dcfcacdb

Remove support for entity variables in filecheck.

Now that the parser doesn't renumber indices, there's no need for entity
variables like $v0.

2018-02-20 17:27:46 -08:00

Jakob Stoklund Olesen

dcad3fa339

Fix coloring bug with combined constraints and global values.

The Intel instruction "v1 = ushr v2, v2" will implicitly fix the output
register for v2 to %rcx because the output is tied to the first input
operand and the second input operand is fixed to %rcx.

Make sure we handle this transitive constraint when checking for
interference with the globally live registers.

Fixes #218

2018-01-17 15:51:08 -08:00

Jakob Stoklund Olesen

0a6500c99a

Avoid making solver variables for fixed input constraints.

When the coloring pass sees an instruction with a fixed input register
constraint that is already satisfied, make sure to tell the solver
about it anyway.

There are situations where the solver wants to convert a value to a
solver variable, and we can't allow that if the same value is also used
for a fixed register operand.

Fixes #221.

2018-01-17 15:01:00 -08:00

3 Commits