wasmtime

T0b1/wasmtime

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Commit Graph

Author	SHA1	Message	Date
Jakob Stoklund Olesen	396b998dad	Handle ABI arguments correctly in the reload pass. Values passed as arguments to calls and return instructions may also be reload candidates.	2017-06-13 15:13:36 -07:00
Jakob Stoklund Olesen	63a372fd80	Basic spilling implementation. Add a spilling pass which lowers register pressure by assigning SSA values to the stack. Important missing features: - Resolve conflicts where an instruction uses the same value more than once in incompatible ways. - Deal with EBB arguments. Fix bugs in the reload pass exposed by the first test case: - Create live ranges for temporary registers. - Set encodings on created spill and fill instructions.	2017-06-13 13:58:20 -07:00
Jakob Stoklund Olesen	0d227fd230	Add a minimalistic reload pass. The reload pass inserts spill and fill instructions as needed so instructions that operate on registers will never see a value with stack affinity. This is a very basic implementation, and we can't write good test cases until we have a spilling pass.	2017-06-07 12:05:38 -07:00

Author

SHA1

Message

Date

Jakob Stoklund Olesen

396b998dad

Handle ABI arguments correctly in the reload pass.

Values passed as arguments to calls and return instructions may also be
reload candidates.

2017-06-13 15:13:36 -07:00

Jakob Stoklund Olesen

63a372fd80

Basic spilling implementation.

Add a spilling pass which lowers register pressure by assigning SSA
values to the stack. Important missing features:

- Resolve conflicts where an instruction uses the same value more than
  once in incompatible ways.
- Deal with EBB arguments.

Fix bugs in the reload pass exposed by the first test case:

- Create live ranges for temporary registers.
- Set encodings on created spill and fill instructions.

2017-06-13 13:58:20 -07:00

Jakob Stoklund Olesen

0d227fd230

Add a minimalistic reload pass.

The reload pass inserts spill and fill instructions as needed so
instructions that operate on registers will never see a value with stack
affinity.

This is a very basic implementation, and we can't write good test cases
until we have a spilling pass.

2017-06-07 12:05:38 -07:00

3 Commits