[PGO] Context sensitive PGO (part 2)

Part 2 of CSPGO changes (mostly related to ProfileSummary).
Note that I use a default parameter in setProfileSummary() and getSummary().
This is to break the dependency in clang. I will make the parameter explicit
after changing clang in a separated patch.

Differential Revision: https://reviews.llvm.org/D54175

llvm-svn: 355131

1 files changed, 8 insertions, 4 deletions

diff --git a/llvm/lib/IR/Module.cpp b/llvm/lib/IR/Module.cpp
index b6dd7ab70a8..dbf4035ac7c 100644
--- a/llvm/lib/IR/Module.cpp
+++ b/llvm/lib/IR/Module.cpp
@@ -531,12 +531,16 @@ void Module::setCodeModel(CodeModel::Model CL) {
   addModuleFlag(ModFlagBehavior::Error, "Code Model", CL);
 }
 
-void Module::setProfileSummary(Metadata *M) {
-  addModuleFlag(ModFlagBehavior::Error, "ProfileSummary", M);
+void Module::setProfileSummary(Metadata *M, ProfileSummary::Kind Kind) {
+  if (Kind == ProfileSummary::PSK_CSInstr)
+    addModuleFlag(ModFlagBehavior::Error, "CSProfileSummary", M);
+  else
+    addModuleFlag(ModFlagBehavior::Error, "ProfileSummary", M);
 }
 
-Metadata *Module::getProfileSummary() {
-  return getModuleFlag("ProfileSummary");
+Metadata *Module::getProfileSummary(bool IsCS) {
+  return (IsCS ? getModuleFlag("CSProfileSummary")
+               : getModuleFlag("ProfileSummary"));
 }
 
 void Module::setOwnedMemoryBuffer(std::unique_ptr<MemoryBuffer> MB) {