X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=blobdiff_plain;f=docs%2FCommandGuide%2Fllvm-profdata.rst;h=a4b18f301e427f939fe8811fd5044344f2a456ee;hp=210826a7babcd5a26059bb0261ae76fece5341e9;hb=b7250858d96b8ce567681214273ac0e62713c661;hpb=7008dd751d0660fee014bb2fcc31c92eb540faa4

diff --git a/docs/CommandGuide/llvm-profdata.rst b/docs/CommandGuide/llvm-profdata.rst
index 210826a7bab..a4b18f301e4 100644
--- a/docs/CommandGuide/llvm-profdata.rst
+++ b/docs/CommandGuide/llvm-profdata.rst
@@ -28,7 +28,7 @@ MERGE
 SYNOPSIS
 ^^^^^^^^
 
-:program:`llvm-profdata merge` [*options*] [*filenames...*]
+:program:`llvm-profdata merge` [*options*] [*filename[:weight]...*]
 
 DESCRIPTION
 ^^^^^^^^^^^
@@ -37,6 +37,10 @@ DESCRIPTION
 generated by PGO instrumentation and merges them together into a single
 indexed profile data file.
 
+The profile counts in each input file can be scaled (multiplied) by specifying
+``<filename>:<weight>``, where `<weight>` is a decimal integer >= 1.
+A default weight of 1 is assumed if only `<filename>` is given.
+
 OPTIONS
 ^^^^^^^