[SampleProfile] Skip intrinsic calls when visiting callsites in InlineHotFunctions.

Before this patch, we always called method 'findCalleeFunctionSamples()' on
intrinsic calls. However, intrinsic calls like llvm.dbg.value() are not viable
candidates for obvious reasons.

No functional change intended.

Differential Revision: https://reviews.llvm.org/D32008

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@300541 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Transforms/IPO/SampleProfile.cpp b/lib/Transforms/IPO/SampleProfile.cpp
index 599774e3e86bbb54f0d4fb0cec7aefafe244a052..642d80e6b8a2ea9e7ac9c8cea7ea1e0369ed31f0 100644 (file)
--- a/lib/Transforms/IPO/SampleProfile.cpp
+++ b/lib/Transforms/IPO/SampleProfile.cpp
@@ -677,7 +677,7 @@ bool SampleProfileLoader::inlineHotFunctions(
       for (auto &I : BB.getInstList()) {
         const FunctionSamples *FS = nullptr;
         if ((isa<CallInst>(I) || isa<InvokeInst>(I)) &&
-            (FS = findCalleeFunctionSamples(I))) {
+            !isa<IntrinsicInst>(I) && (FS = findCalleeFunctionSamples(I))) {
           Candidates.push_back(&I);
           if (callsiteIsHot(Samples, FS))
             Hot = true;