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Author	SHA1	Message	Date
Michael McLoughlin	d43efabdbe	inst,ir: cancelling inputs (#92 ) Adds support for a `CancellingInputs` instruction flag, to indicate cases like `XORQ R10, R10` where the instruction actually does not depend on the value of `R10` at all. Closes #89	2019-07-28 17:58:49 -07:00
Michael McLoughlin	2e7d06bc7a	pass: remove redundant jumps and dangling labels (#81 ) In jump-table-like constructs, the natural way of writing the code can sometimes produce redundant jumps or labels. Therefore some basic cleanup steps have been proposed. This diff adds two transforms: 1. Remove unconditional jumps to a label immediately following. 2. Remove labels with no references at all. Fixes #75	2019-04-15 19:42:11 -07:00

Author

SHA1

Message

Date

Michael McLoughlin

d43efabdbe

inst,ir: cancelling inputs (#92 )

Adds support for a `CancellingInputs` instruction flag, to indicate cases like `XORQ R10, R10` where the instruction actually does not depend on the value of `R10` at all.

Closes #89

2019-07-28 17:58:49 -07:00

Michael McLoughlin

2e7d06bc7a

pass: remove redundant jumps and dangling labels (#81 )

In jump-table-like constructs, the natural way of writing the code can sometimes produce redundant jumps or labels. Therefore some basic cleanup steps have been proposed. This diff adds two transforms:

1. Remove unconditional jumps to a label immediately following.
2. Remove labels with no references at all.

Fixes #75

2019-04-15 19:42:11 -07:00

2 Commits