[PGO] Add --text option for llvm-profdata show|merge commands

The new option is similar to the SampleProfile dump option.

- dump raw/indexed format into text profile format
- merge the profile and output into text profile format.

Note that Value Profiling data text format is not yet designed. 
That functionality will be added later.

Differential Revision: http://reviews.llvm.org/D14894

llvm-svn: 253913

1 files changed, 18 insertions, 1 deletions

diff --git a/llvm/docs/CommandGuide/llvm-profdata.rst b/llvm/docs/CommandGuide/llvm-profdata.rst
index 7053b7fa710..1d46fe75467 100644
--- a/llvm/docs/CommandGuide/llvm-profdata.rst
+++ b/llvm/docs/CommandGuide/llvm-profdata.rst
@@ -51,7 +51,17 @@ OPTIONS
 
 .. option:: -instr (default)
 
- Specify that the input profile is an instrumentation-based profile.
+ Specify that the input profile is an instrumentation-based profile. When
+ using instrumentation-based profiles, the format of the generated file
+ can be generated in one of the two ways:
+
+ .. option:: -binary (default)
+
+ Emit the profile using a binary encoding in indexed profile format.
+
+ .. option:: -text
+
+ Emit the profile in text format.
 
 .. option:: -sample
 
@@ -121,6 +131,13 @@ OPTIONS
 
  Specify that the input profile is an instrumentation-based profile.
 
+.. option:: -text
+
+ Instruct the profile dumper to show profile counts in the text format of the
+ instrumentation-based profile data representation. By default, the profile
+ information is dumped in a more human readable form (also in text) with
+ annotations.
+
 .. option:: -sample
 
  Specify that the input profile is a sample-based profile.