commit aa8b1cb8a4949501c0c9a098cf07eb62b0a85c05
author Diego Novillo <dnovillo@google.com> Wed May 27 21:58:42 2015 +0000
committer Diego Novillo <dnovillo@google.com> Wed May 27 21:58:42 2015 +0000
tree 184db68d15ae334e0defd6be4c5dfdaba2823e5b
parent ff18927c5828896ee9a511c46e6b9acef8ab37e3

Set function entry counts with -fprofile-instr-use.

This generates function entry counts from instrumentation profiles.

llvm-svn: 238360

clang/lib/CodeGen/CodeGenPGO.cpp

diff --git a/clang/lib/CodeGen/CodeGenPGO.cpp b/clang/lib/CodeGen/CodeGenPGO.cpp
index c972443..f182a46 100644
--- a/clang/lib/CodeGen/CodeGenPGO.cpp
+++ b/clang/lib/CodeGen/CodeGenPGO.cpp
@@ -773,6 +773,8 @@
     // Turn on Cold attribute for cold functions.
     // FIXME: 1% is from preliminary tuning on SPEC, it may not be optimal.
     Fn->addFnAttr(llvm::Attribute::Cold);
+
+  Fn->setEntryCount(FunctionCount);
 }
 
 void CodeGenPGO::emitCounterIncrement(CGBuilderTy &Builder, const Stmt *S) {