[BOLT] Control aggregation mode output profile file format

In perf2bolt and `-aggregate-only` BOLT mode, the output profile file is written
in fdata format by default. Provide a knob `-profile-format=[fdata,yaml]` to
control the format.
Note that `-w` option still dumps in YAML format.

Reviewed By: #bolt, maksfb

Differential Revision: https://reviews.llvm.org/D133995

1 files changed, 9 insertions, 0 deletions

diff --git a/bolt/lib/Utils/CommandLineOpts.cpp b/bolt/lib/Utils/CommandLineOpts.cpp
index b90a735..d17d68a 100644
--- a/bolt/lib/Utils/CommandLineOpts.cpp
+++ b/bolt/lib/Utils/CommandLineOpts.cpp
@@ -154,6 +154,15 @@ cl::opt<bool> PrintSections("print-sections",
                             cl::desc("print all registered sections"),
                             cl::Hidden, cl::cat(BoltCategory));
 
+cl::opt<ProfileFormatKind> ProfileFormat(
+    "profile-format",
+    cl::desc(
+        "format to dump profile output in aggregation mode, default is fdata"),
+    cl::init(PF_Fdata),
+    cl::values(clEnumValN(PF_Fdata, "fdata", "offset-based plaintext format"),
+               clEnumValN(PF_YAML, "yaml", "dense YAML reprensentation")),
+    cl::ZeroOrMore, cl::Hidden, cl::cat(BoltCategory));
+
 cl::opt<bool> SplitEH("split-eh", cl::desc("split C++ exception handling code"),
                       cl::Hidden, cl::cat(BoltOptCategory));