llvm-project

Commit Graph

Author	SHA1	Message	Date
Vedant Kumar	17d9f14bff	[CodeExtractor] Emit lifetime markers around reloads of outputs CodeExtractor permits extracting a region of blocks from a function even when values defined within the region are used outside of it. This is typically done by creating an alloca in the original function and reloading the alloca after a call to the extracted function. Wrap the reload in lifetime start/end markers to promote stack coloring. Suggested by Sergei Kachkov! Differential Revision: https://reviews.llvm.org/D56045 llvm-svn: 351621	2019-01-19 02:37:59 +00:00
Vedant Kumar	f529b50702	[HotColdSplit] Allow outlining with live outputs Prior to r348205, extracting code regions with live output values was disabled because of a miscompilation (PR39433). Lift the restriction as PR39433 has been addressed. Tested on LNT+externals, on a run of check-llvm in a stage2 build, and with a full build of iOS (with hot/cold splitting enabled). As a drive-by, remove an errant TODO. llvm-svn: 351492	2019-01-17 22:36:05 +00:00

Author

SHA1

Message

Date

Vedant Kumar

17d9f14bff

[CodeExtractor] Emit lifetime markers around reloads of outputs

CodeExtractor permits extracting a region of blocks from a function even
when values defined within the region are used outside of it.

This is typically done by creating an alloca in the original function
and reloading the alloca after a call to the extracted function.

Wrap the reload in lifetime start/end markers to promote stack coloring.

Suggested by Sergei Kachkov!

Differential Revision: https://reviews.llvm.org/D56045

llvm-svn: 351621

2019-01-19 02:37:59 +00:00

Vedant Kumar

f529b50702

[HotColdSplit] Allow outlining with live outputs

Prior to r348205, extracting code regions with live output values was
disabled because of a miscompilation (PR39433). Lift the restriction as
PR39433 has been addressed.

Tested on LNT+externals, on a run of check-llvm in a stage2 build, and
with a full build of iOS (with hot/cold splitting enabled).

As a drive-by, remove an errant TODO.

llvm-svn: 351492

2019-01-17 22:36:05 +00:00

2 Commits