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3 Commits

Author SHA1 Message Date
Vladimir Vereschaka
d2dbe20460 Reverted r375254 as it has broken some build bots for a long time. 
llvm-svn: 375375
 2019-10-20 20:39:33 +00:00
Hiroshi Yamauchi
bdc08cd08e [PGO][PGSO] SizeOpts changes. 
Summary:
(Split of off D67120)

SizeOpts/MachineSizeOpts changes for profile guided size optimization.

Reviewers: davidxl

Subscribers: mgorny, hiraditya, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D69070

llvm-svn: 375254
 2019-10-18 16:46:01 +00:00
Hiroshi Yamauchi
a42343417c [PGO] Profile guided code size optimization. 
Summary:
Enable some of the existing size optimizations for cold code under PGO.

A ~5% code size saving in big internal app under PGO.

The way it gets BFI/PSI is discussed in the RFC thread

http://lists.llvm.org/pipermail/llvm-dev/2019-March/130894.html 

Note it doesn't currently touch loop passes.

Reviewers: davidxl, eraman

Reviewed By: eraman

Subscribers: mgorny, javed.absar, smeenai, mehdi_amini, eraman, zzheng, steven_wu, dexonsmith, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D59514

llvm-svn: 358422
 2019-04-15 16:49:00 +00:00