[llvm] 91fe3e3 - ADT: Use early returns in SmallVector::resize, NFC

[Duncan P. N. Exon Smith via llvm-commits]

Author: Duncan P. N. Exon Smith
Date: 2020-11-19T17:28:57-08:00
New Revision: 91fe3e309c7c4b2c7c906353e4b658ee704fe0bf

URL: https://github.com/llvm/llvm-project/commit/91fe3e309c7c4b2c7c906353e4b658ee704fe0bf
DIFF: https://github.com/llvm/llvm-project/commit/91fe3e309c7c4b2c7c906353e4b658ee704fe0bf.diff

LOG: ADT: Use early returns in SmallVector::resize, NFC

Just a simple cleanup, no functionality change here.

Added: 
    

Modified: 
    llvm/include/llvm/ADT/SmallVector.h

Removed: 
    


################################################################################
diff  --git a/llvm/include/llvm/ADT/SmallVector.h b/llvm/include/llvm/ADT/SmallVector.h
index 18463214df80..ed329aa02e34 100644
--- a/llvm/include/llvm/ADT/SmallVector.h
+++ b/llvm/include/llvm/ADT/SmallVector.h
@@ -462,16 +462,20 @@ class SmallVectorImpl : public SmallVectorTemplateBase<T> {
   }
 
   void resize(size_type N, const T &NV) {
+    if (N == this->size())
+      return;
+
     if (N < this->size()) {
       this->destroy_range(this->begin()+N, this->end());
       this->set_size(N);
-    } else if (N > this->size()) {
-      this->assertSafeToReferenceAfterResize(&NV, N);
-      if (this->capacity() < N)
-        this->grow(N);
-      std::uninitialized_fill(this->end(), this->begin()+N, NV);
-      this->set_size(N);
+      return;
     }
+
+    this->assertSafeToReferenceAfterResize(&NV, N);
+    if (this->capacity() < N)
+      this->grow(N);
+    std::uninitialized_fill(this->end(), this->begin() + N, NV);
+    this->set_size(N);
   }
 
   void reserve(size_type N) {