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Commit Graph

Author	SHA1	Message	Date
Krzysztof Parzyszek	7ff439af60	[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	8ef90fe4f8	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

7ff439af60

[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

8ef90fe4f8

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

2 Commits