Commit Graph

3 Commits

Author SHA1 Message Date
Rong Xu 4059e143dc [PGO] Enable InstrProf lowering for Clang PGO instrumentation in the new pass manager
Currently InstrProf lowering is not enabled for Clang PGO instrumentation in
the new pass manager. The following command
"-fprofile-instr-generate -fexperimental-new-pass-manager ..." is broken.

This CL enables InstrProf lowering pass for Clang PGO instrumentation in the
new pass manager.

Differential Revision: https://reviews.llvm.org/D61138

llvm-svn: 359215
2019-04-25 17:52:43 +00:00
Rong Xu 9c6f1538cc [PGO] Change profile use cc1 option to handle IR level profiles
This patch changes cc1 option for PGO profile use from
-fprofile-instr-use=<path> to -fprofile-instrument-use-path=<path>.
-fprofile-instr-use=<path> is now a driver only option.

In addition to decouple the cc1 option from the driver level option, this patch
also enables IR level profile use. cc1 option handling now reads the profile
header and sets CodeGenOpt ProfileUse (valid values are {None, Clang, LLVM}
-- this is a common enum for -fprofile-instrument={}, for the profile
instrumentation), and invoke the pipeline to enable the respective PGO use pass.

Reviewers: silvas, davidxl

Differential Revision: http://reviews.llvm.org/D17737

llvm-svn: 262515
2016-03-02 20:59:36 +00:00
Rong Xu 522b5cb375 [PGO] clang cc1 option change to enable IR level instrumentation
This patch expands cc1 option -fprofile-instrument= with a new value: -fprofile-instrument=llvm
which enables IR level PGO instrumentation.

Reviewers: davidxl, silvas

Differential Revision: http://reviews.llvm.org/D17622

llvm-svn: 262239
2016-02-29 18:54:59 +00:00