xur created this revision.
xur added reviewers: davidxl, bogner, joker.eph.
xur added subscribers: cfe-commits, vsk, xur.

Write out the PGOFuncName meta data if PGOFuncName is different from function's 
raw name. This should only apply to internal linkage functions. This is to be 
consumed by indirect-call promotion when called in LTO optimization passes 
(D17864 under review).

This patch depends on http://reviews.llvm.org/D18623.


http://reviews.llvm.org/D18624

Files:
  lib/CodeGen/CodeGenPGO.cpp

Index: lib/CodeGen/CodeGenPGO.cpp
===================================================================
--- lib/CodeGen/CodeGenPGO.cpp
+++ lib/CodeGen/CodeGenPGO.cpp
@@ -787,6 +787,11 @@
                             (llvm::InstrProfValueKind)ValueKind,
                             NumValueSites[ValueKind]);
 
+    // Write out PGOFuncName meta data.
+    llvm::Function *F = ValueSite->getFunction();
+    if (!llvm::getPGOFuncNameMetaData(*F))
+      llvm::createPGOFuncNameMetaData(*F);
+
     NumValueSites[ValueKind]++;
   }
 }


Index: lib/CodeGen/CodeGenPGO.cpp
===================================================================
--- lib/CodeGen/CodeGenPGO.cpp
+++ lib/CodeGen/CodeGenPGO.cpp
@@ -787,6 +787,11 @@
                             (llvm::InstrProfValueKind)ValueKind,
                             NumValueSites[ValueKind]);
 
+    // Write out PGOFuncName meta data.
+    llvm::Function *F = ValueSite->getFunction();
+    if (!llvm::getPGOFuncNameMetaData(*F))
+      llvm::createPGOFuncNameMetaData(*F);
+
     NumValueSites[ValueKind]++;
   }
 }
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