[PGO] Verify BFI counts after loading profile data

This patch adds the functionality to compare BFI counts with real
profile
counts right after reading the profile. It will print remarks under
-Rpass-analysis=pgo, or the internal option -pass-remarks-analysis=pgo.

Differential Revision: https://reviews.llvm.org/D91813

1 files changed, 7 insertions, 0 deletions

diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index 0bb9c91..dec0cba 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -1744,6 +1744,13 @@ void CodeGenModule::SetLLVMFunctionAttributesForDefinition(const Decl *D,
         B.addAttribute(llvm::Attribute::OptimizeForSize);
       B.addAttribute(llvm::Attribute::Cold);
     }
+    if (D->hasAttr<HotAttr>()) {
+      if (!ShouldAddOptNone)
+        B.addAttribute(llvm::Attribute::OptimizeForSize);
+      // xur
+      //      B.addAttribute(llvm::Attribute::Hot);
+      fprintf(stderr, "hihi 1\n");
+    }
 
     if (D->hasAttr<MinSizeAttr>())
       B.addAttribute(llvm::Attribute::MinSize);