[llvm] [NFC] Prefer compile-time branching in function template (PR #203698)

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llvmorg-github-actions[bot] wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-llvm-analysis

Author: Shanzhi Chen (chenshanzhi)

<details>
<summary>Changes</summary>



---
Full diff: https://github.com/llvm/llvm-project/pull/203698.diff


1 Files Affected:

- (modified) llvm/include/llvm/Analysis/ProfileSummaryInfo.h (+2-2) 


``````````diff
diff --git a/llvm/include/llvm/Analysis/ProfileSummaryInfo.h b/llvm/include/llvm/Analysis/ProfileSummaryInfo.h
index 02c412729081a..96af93dfc9cf4 100644
--- a/llvm/include/llvm/Analysis/ProfileSummaryInfo.h
+++ b/llvm/include/llvm/Analysis/ProfileSummaryInfo.h
@@ -309,7 +309,7 @@ class ProfileSummaryInfo {
   bool isHotOrColdBlockNthPercentile(int PercentileCutoff, const BBType *BB,
                                      BFIT *BFI) const {
     auto Count = BFI->getBlockProfileCount(BB);
-    if (isHot)
+    if constexpr (isHot)
       return Count && isHotCountNthPercentile(PercentileCutoff, *Count);
     else
       return Count && isColdCountNthPercentile(PercentileCutoff, *Count);
@@ -320,7 +320,7 @@ class ProfileSummaryInfo {
                                      BlockFrequency BlockFreq,
                                      BFIT *BFI) const {
     auto Count = BFI->getProfileCountFromFreq(BlockFreq);
-    if (isHot)
+    if constexpr (isHot)
       return Count && isHotCountNthPercentile(PercentileCutoff, *Count);
     else
       return Count && isColdCountNthPercentile(PercentileCutoff, *Count);

``````````

</details>


https://github.com/llvm/llvm-project/pull/203698