[SampleProfile] Reduce indentation with an early return (NFC)

Author: kazutakahirata

llvm/lib/Transforms/IPO/SampleProfile.cpp

@@ -1226,45 +1226,45 @@ bool SampleProfileLoader::tryInlineCandidate(
 
   InlineFunctionInfo IFI(nullptr, GetAC);
   IFI.UpdateProfile = false;
-  if (InlineFunction(CB, IFI).isSuccess()) {
-    // Merge the attributes based on the inlining.
-    AttributeFuncs::mergeAttributesForInlining(*BB->getParent(),
-                                               *CalledFunction);
-
-    // The call to InlineFunction erases I, so we can't pass it here.
-    emitInlinedIntoBasedOnCost(*ORE, DLoc, BB, *CalledFunction,
-                               *BB->getParent(), Cost, true, CSINLINE_DEBUG);
-
-    // Now populate the list of newly exposed call sites.
-    if (InlinedCallSites) {
-      InlinedCallSites->clear();
-      for (auto &I : IFI.InlinedCallSites)
-        InlinedCallSites->push_back(I);
-    }
+  if (!InlineFunction(CB, IFI).isSuccess())
+    return false;
 
-    if (ProfileIsCSFlat)
-      ContextTracker->markContextSamplesInlined(Candidate.CalleeSamples);
-    ++NumCSInlined;
-
-    // Prorate inlined probes for a duplicated inlining callsite which probably
-    // has a distribution less than 100%. Samples for an inlinee should be
-    // distributed among the copies of the original callsite based on each
-    // callsite's distribution factor for counts accuracy. Note that an inlined
-    // probe may come with its own distribution factor if it has been duplicated
-    // in the inlinee body. The two factor are multiplied to reflect the
-    // aggregation of duplication.
-    if (Candidate.CallsiteDistribution < 1) {
-      for (auto &I : IFI.InlinedCallSites) {
-        if (Optional<PseudoProbe> Probe = extractProbe(*I))
-          setProbeDistributionFactor(*I, Probe->Factor *
-                                             Candidate.CallsiteDistribution);
-      }
-      NumDuplicatedInlinesite++;
-    }
+  // Merge the attributes based on the inlining.
+  AttributeFuncs::mergeAttributesForInlining(*BB->getParent(),
+                                             *CalledFunction);
 
-    return true;
+  // The call to InlineFunction erases I, so we can't pass it here.
+  emitInlinedIntoBasedOnCost(*ORE, DLoc, BB, *CalledFunction,
+                             *BB->getParent(), Cost, true, CSINLINE_DEBUG);
+
+  // Now populate the list of newly exposed call sites.
+  if (InlinedCallSites) {
+    InlinedCallSites->clear();
+    for (auto &I : IFI.InlinedCallSites)
+      InlinedCallSites->push_back(I);
   }
-  return false;
+
+  if (ProfileIsCSFlat)
+    ContextTracker->markContextSamplesInlined(Candidate.CalleeSamples);
+  ++NumCSInlined;
+
+  // Prorate inlined probes for a duplicated inlining callsite which probably
+  // has a distribution less than 100%. Samples for an inlinee should be
+  // distributed among the copies of the original callsite based on each
+  // callsite's distribution factor for counts accuracy. Note that an inlined
+  // probe may come with its own distribution factor if it has been duplicated
+  // in the inlinee body. The two factor are multiplied to reflect the
+  // aggregation of duplication.
+  if (Candidate.CallsiteDistribution < 1) {
+    for (auto &I : IFI.InlinedCallSites) {
+      if (Optional<PseudoProbe> Probe = extractProbe(*I))
+        setProbeDistributionFactor(*I, Probe->Factor *
+                                   Candidate.CallsiteDistribution);
+    }
+    NumDuplicatedInlinesite++;
+  }
+
+  return true;
 }
 
 bool SampleProfileLoader::getInlineCandidate(InlineCandidate *NewCandidate,