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

[kazutakahirata]

No description provided.

[llvmbot]

@llvm/pr-subscribers-llvm-transforms

@llvm/pr-subscribers-function-specialization

Author: Kazu Hirata (kazutakahirata)

Changes

---

Full diff: https://github.com/llvm/llvm-project/pull/112473.diff

1 Files Affected:

• (modified) llvm/lib/Transforms/Utils/SCCPSolver.cpp (+1-4)

diff --git a/llvm/lib/Transforms/Utils/SCCPSolver.cpp b/llvm/lib/Transforms/Utils/SCCPSolver.cpp
index 101d60525f4161..c65710ea7551ac 100644
--- a/llvm/lib/Transforms/Utils/SCCPSolver.cpp
+++ b/llvm/lib/Transforms/Utils/SCCPSolver.cpp
@@ -630,10 +630,7 @@ class SCCPInstVisitor : public InstVisitor<SCCPInstVisitor> {
   }
 
   // Add U as additional user of V.
-  void addAdditionalUser(Value *V, User *U) {
-    auto Iter = AdditionalUsers.insert({V, {}});
-    Iter.first->second.insert(U);
-  }
+  void addAdditionalUser(Value *V, User *U) { AdditionalUsers[V].insert(U); }
 
   // Mark I's users as changed, including AdditionalUsers.
   void markUsersAsChanged(Value *I) {

[fhahn]

LGTM, thanks!