[llvm] eb76ca5 - [NFC][MLGO] Debug messages for what inline advisor is selected

[Mircea Trofin via llvm-commits]

Author: Mircea Trofin
Date: 2021-07-27T15:05:39-07:00
New Revision: eb76ca573d755fd445596e63ef1f0d30937097f6

URL: https://github.com/llvm/llvm-project/commit/eb76ca573d755fd445596e63ef1f0d30937097f6
DIFF: https://github.com/llvm/llvm-project/commit/eb76ca573d755fd445596e63ef1f0d30937097f6.diff

LOG: [NFC][MLGO] Debug messages for what inline advisor is selected

We already have an indication (error) if the desired inline advisor
cannot be enabled, but we don't have a positive indication. Added
LLVM_DEBUG messages for the latter.

Added: 
    

Modified: 
    llvm/lib/Analysis/InlineAdvisor.cpp

Removed: 
    


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diff  --git a/llvm/lib/Analysis/InlineAdvisor.cpp b/llvm/lib/Analysis/InlineAdvisor.cpp
index 469ec4c1d57c..195c22191d4c 100644
--- a/llvm/lib/Analysis/InlineAdvisor.cpp
+++ b/llvm/lib/Analysis/InlineAdvisor.cpp
@@ -157,6 +157,7 @@ bool InlineAdvisorAnalysis::Result::tryCreate(InlineParams Params,
   auto &FAM = MAM.getResult<FunctionAnalysisManagerModuleProxy>(M).getManager();
   switch (Mode) {
   case InliningAdvisorMode::Default:
+    LLVM_DEBUG("Using default inliner heuristic.");
     Advisor.reset(new DefaultInlineAdvisor(M, FAM, Params));
     // Restrict replay to default advisor, ML advisors are stateful so
     // replay will need augmentations to interleave with them correctly.
@@ -168,6 +169,7 @@ bool InlineAdvisorAnalysis::Result::tryCreate(InlineParams Params,
     break;
   case InliningAdvisorMode::Development:
 #ifdef LLVM_HAVE_TF_API
+    LLVM_DEBUG("Using development-mode inliner policy.");
     Advisor =
         llvm::getDevelopmentModeAdvisor(M, MAM, [&FAM, Params](CallBase &CB) {
           auto OIC = getDefaultInlineAdvice(CB, FAM, Params);
@@ -177,6 +179,7 @@ bool InlineAdvisorAnalysis::Result::tryCreate(InlineParams Params,
     break;
   case InliningAdvisorMode::Release:
 #ifdef LLVM_HAVE_TF_AOT
+    LLVM_DEBUG("Using release-mode inliner policy.");
     Advisor = llvm::getReleaseModeAdvisor(M, MAM);
 #endif
     break;