llvm-project

Commit Graph

Author	SHA1	Message	Date
Krzysztof Parzyszek	efd72857a3	[RDF] Handle undefined registers in RDF copy propagation When updating the graph, make sure that new uses without reaching defs are handled correctly. llvm-svn: 267891	2016-04-28 15:09:19 +00:00
Krzysztof Parzyszek	adc64b7df0	[RDF] Improvements to copy propagation - Allow any instruction to define equality between registers. - Keep the DFG updated. llvm-svn: 258075	2016-01-18 20:43:57 +00:00
Krzysztof Parzyszek	c09d630e50	RDF: Copy propagation This is a very limited implementation of DFG-based copy propagation. It only handles actual COPY instructions (does not handle other equivalents such as add-immediate with a 0 operand). The major limitation is that it does not update the DFG: that will be the change required to make it more robust (hopefully coming up soon). llvm-svn: 257490	2016-01-12 17:23:48 +00:00

Author

SHA1

Message

Date

Krzysztof Parzyszek

efd72857a3

[RDF] Handle undefined registers in RDF copy propagation

When updating the graph, make sure that new uses without reaching defs
are handled correctly.

llvm-svn: 267891

2016-04-28 15:09:19 +00:00

Krzysztof Parzyszek

adc64b7df0

[RDF] Improvements to copy propagation

- Allow any instruction to define equality between registers.
- Keep the DFG updated.

llvm-svn: 258075

2016-01-18 20:43:57 +00:00

Krzysztof Parzyszek

c09d630e50

RDF: Copy propagation

This is a very limited implementation of DFG-based copy propagation.
It only handles actual COPY instructions (does not handle other equivalents
such as add-immediate with a 0 operand).
The major limitation is that it does not update the DFG: that will be the
change required to make it more robust (hopefully coming up soon).

llvm-svn: 257490

2016-01-12 17:23:48 +00:00

3 Commits