llvm-project

Author	SHA1	Message	Date
Tyler Nowicki	4b07b00786	Add Rpass-missed and Rpass-analysis reports to the loop vectorizer. The remarks give the vector width of vectorized loops and a brief analysis of loops that fail to be vectorized. For example, an analysis will be generated for loops containing control flow that cannot be simplified to a select. The optimization remarks also give the debug location of expressions that cannot be vectorized, for example the location of an unvectorizable call. Reviewed by: Arnold Schwaighofer llvm-svn: 211721	2014-06-25 17:50:15 +00:00
Diego Novillo	56653fdada	Add new debug kind LocTrackingOnly. Summary: This new debug emission kind supports emitting line location information in all instructions, but stops code generation from emitting debug info to the final output. This mode is useful when the backend wants to track source locations during code generation, but it does not want to produce debug info. This is currently used by optimization remarks (-pass-remarks, -pass-remarks-missed and -pass-remarks-analysis). To prevent debug info emission, DIBuilder never inserts the annotation 'llvm.dbg.cu' when LocTrackingOnly is enabled. Reviewers: echristo, dblaikie Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D4234 llvm-svn: 211609	2014-06-24 17:02:03 +00:00
Diego Novillo	cd64780d18	Fix vectorization remarks. This patch changes the vectorization remarks to also inform when vectorization is possible but not beneficial. Added tests to exercise some loop remarks. llvm-svn: 207574	2014-04-29 20:06:10 +00:00

Author

SHA1

Message

Date

Tyler Nowicki

4b07b00786

Add Rpass-missed and Rpass-analysis reports to the loop vectorizer. The remarks give the vector width of vectorized loops and a brief analysis of loops that fail to be vectorized. For example, an analysis will be generated for loops containing control flow that cannot be simplified to a select. The optimization remarks also give the debug location of expressions that cannot be vectorized, for example the location of an unvectorizable call.

Reviewed by: Arnold Schwaighofer

llvm-svn: 211721

2014-06-25 17:50:15 +00:00

Diego Novillo

56653fdada

Add new debug kind LocTrackingOnly.

Summary:
This new debug emission kind supports emitting line location
information in all instructions, but stops code generation
from emitting debug info to the final output.

This mode is useful when the backend wants to track source
locations during code generation, but it does not want to
produce debug info. This is currently used by optimization
remarks (-pass-remarks, -pass-remarks-missed and
-pass-remarks-analysis).

To prevent debug info emission, DIBuilder never inserts the
annotation 'llvm.dbg.cu' when LocTrackingOnly is enabled.

Reviewers: echristo, dblaikie

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D4234

llvm-svn: 211609

2014-06-24 17:02:03 +00:00

Diego Novillo

cd64780d18

Fix vectorization remarks.

This patch changes the vectorization remarks to also inform when
vectorization is possible but not beneficial.

Added tests to exercise some loop remarks.

llvm-svn: 207574

2014-04-29 20:06:10 +00:00

3 Commits