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[Driver] Add flags for enabling both types of PGO Instrumentation

Description

[Driver] Add flags for enabling both types of PGO Instrumentation

The flags:
Enable IR-level instrumentation -fprofile-generate or -fprofile-generate=
When applying profile data: -fprofile-use=/path/to/profdata

Patch by Jake VanAdrighem!

Differential Revision: https://reviews.llvm.org/D21823

Details

Committed
silvasJul 15 2016, 7:54 PM
Differential Revision
D21823: [Driver] Add flags for enabling both types of PGO Instrumentation
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