[llvm] 0e6d7f6 - [Debuginfo][NFC] findRecursively: Replace std::vector by SmallVector

[Alexey Lapshin via llvm-commits]

Author: Alexey Lapshin
Date: 2020-04-30T11:01:41+03:00
New Revision: 0e6d7f602428f70215908409ab9691cdf299c6a1

URL: https://github.com/llvm/llvm-project/commit/0e6d7f602428f70215908409ab9691cdf299c6a1
DIFF: https://github.com/llvm/llvm-project/commit/0e6d7f602428f70215908409ab9691cdf299c6a1.diff

LOG: [Debuginfo][NFC] findRecursively: Replace std::vector by SmallVector

Summary:
Change std::vector to SmallVector to prevent re-allocations and to
have small pre-allocated storage.

Reviewers: clayborg, dblaikie

Differential Revision: https://reviews.llvm.org/D79123

Added: 
    

Modified: 
    llvm/lib/DebugInfo/DWARF/DWARFDie.cpp

Removed: 
    


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diff  --git a/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp b/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
index 134436c1ddbb..624a79e30464 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFDie.cpp
@@ -356,7 +356,7 @@ DWARFDie::find(ArrayRef<dwarf::Attribute> Attrs) const {
 
 Optional<DWARFFormValue>
 DWARFDie::findRecursively(ArrayRef<dwarf::Attribute> Attrs) const {
-  std::vector<DWARFDie> Worklist;
+  SmallVector<DWARFDie, 3> Worklist;
   Worklist.push_back(*this);
 
   // Keep track if DIEs already seen to prevent infinite recursion.