[XRay] Simplify code with DenseMap::operator[] (NFC)

[kazutakahirata]

No description provided.

[llvmbot]

@llvm/pr-subscribers-xray

Author: Kazu Hirata (kazutakahirata)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/111786.diff

1 Files Affected:

• (modified) llvm/lib/XRay/BlockIndexer.cpp (+3-6)

diff --git a/llvm/lib/XRay/BlockIndexer.cpp b/llvm/lib/XRay/BlockIndexer.cpp
index a99a6815f0d16b..f4ba0eb5bda9cf 100644
--- a/llvm/lib/XRay/BlockIndexer.cpp
+++ b/llvm/lib/XRay/BlockIndexer.cpp
@@ -80,12 +80,9 @@ Error BlockIndexer::visit(FunctionRecord &R) {
 }
 
 Error BlockIndexer::flush() {
-  Index::iterator It;
-  std::tie(It, std::ignore) =
-      Indices.insert({{CurrentBlock.ProcessID, CurrentBlock.ThreadID}, {}});
-  It->second.push_back({CurrentBlock.ProcessID, CurrentBlock.ThreadID,
-                        CurrentBlock.WallclockTime,
-                        std::move(CurrentBlock.Records)});
+  Indices[{CurrentBlock.ProcessID, CurrentBlock.ThreadID}].push_back(
+      {CurrentBlock.ProcessID, CurrentBlock.ThreadID,
+       CurrentBlock.WallclockTime, std::move(CurrentBlock.Records)});
   CurrentBlock.ProcessID = 0;
   CurrentBlock.ThreadID = 0;
   CurrentBlock.Records = {};

[nikic]

LGTM