Commit Graph

7 Commits

Author SHA1 Message Date
Quentin Colombet ae2cbb3400 [BlockExtractor] Change the basic block separator from ',' to ';'
This change aims at making the file format be compatible with the
way LLVM handles command line options.

Differential Revision: https://reviews.llvm.org/D60970

llvm-svn: 359462
2019-04-29 16:14:00 +00:00
Quentin Colombet ea3364bf85 [BlockExtractor] Extend the file format to support the grouping of basic blocks
Prior to this patch, each basic block listed in the extrack-blocks-file
would be extracted to a different function.

This patch adds the support for comma separated list of basic blocks
to form group.

When the region formed by a group is not extractable, e.g., not single
entry, all the blocks of that group are left untouched.

Let us see this new format in action (comments are not part of the
file format):
;; funcName bbName[,bbName...]
   foo      bb1        ;; Extract bb1 in its own function
   foo      bb2,bb3    ;; Extract bb2,bb3 in their own function
   bar      bb1,bb4    ;; Extract bb1,bb4 in their own function
   bar      bb2        ;; Extract bb2 in its own function

Assuming all regions are extractable, this will create one function and
thus one call per region.

Differential Revision: https://reviews.llvm.org/D60746

llvm-svn: 358701
2019-04-18 18:28:30 +00:00
Eric Christopher cee313d288 Revert "Temporarily Revert "Add basic loop fusion pass.""
The reversion apparently deleted the test/Transforms directory.

Will be re-reverting again.

llvm-svn: 358552
2019-04-17 04:52:47 +00:00
Eric Christopher a863435128 Temporarily Revert "Add basic loop fusion pass."
As it's causing some bot failures (and per request from kbarton).

This reverts commit r358543/ab70da07286e618016e78247e4a24fcb84077fda.

llvm-svn: 358546
2019-04-17 02:12:23 +00:00
Teresa Johnson c8dba682bb [hot-cold-split] Name split functions with ".cold" suffix
Summary:
The current default of appending "_"+entry block label to the new
extracted cold function breaks demangling. Change the deliminator from
"_" to "." to enable demangling. Because the header block label will
be empty for release compile code, use "extracted" after the "." when
the label is empty.

Additionally, add a mechanism for the client to pass in an alternate
suffix applied after the ".", and have the hot cold split pass use
"cold."+Count, where the Count is currently 1 but can be used to
uniquely number multiple cold functions split out from the same function
with D53588.

Reviewers: sebpop, hiraditya

Subscribers: llvm-commits, erik.pilkington

Differential Revision: https://reviews.llvm.org/D53534

llvm-svn: 345178
2018-10-24 18:53:47 +00:00
Volkan Keles 4ecdb44a64 BlockExtractor: Don’t delete functions directly
Blocks may have function calls, so don’t erase functions
directly to avoid erasing a function that has a user.

llvm-svn: 327340
2018-03-12 22:28:18 +00:00
Volkan Keles dc40be75f8 [llvm-extract] Support extracting basic blocks
Summary:
Currently, there is no way to extract a basic block from a function easily. This patch
extends llvm-extract to extract the specified basic block(s).

Reviewers: loladiro, rafael, bogner

Reviewed By: bogner

Subscribers: hintonda, mgorny, qcolombet, llvm-commits

Differential Revision: https://reviews.llvm.org/D41638

llvm-svn: 323266
2018-01-23 21:51:34 +00:00