From 58dd265d25f0922a78d023472d820f3d2018e47d Mon Sep 17 00:00:00 2001
From: Craig Topper <craig.topper@sifive.com>
Date: Sun, 9 Apr 2023 23:13:51 -0700
Subject: [PATCH] [TableGen] Pass size to std::vector constructor instead of
 using resize. NFC

---
 llvm/utils/TableGen/CodeGenDAGPatterns.cpp | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
index 81821a4..3bd5bfa 100644
--- a/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
+++ b/llvm/utils/TableGen/CodeGenDAGPatterns.cpp
@@ -2091,8 +2091,8 @@ void TreePatternNode::InlinePatternFragments(
     }
 
     // Recursively inline children nodes.
-    std::vector<std::vector<TreePatternNodePtr> > ChildAlternatives;
-    ChildAlternatives.resize(T->getNumChildren());
+    std::vector<std::vector<TreePatternNodePtr>> ChildAlternatives(
+        T->getNumChildren());
     for (unsigned i = 0, e = T->getNumChildren(); i != e; ++i) {
       TreePatternNodePtr Child = T->getChildShared(i);
       InlinePatternFragments(Child, TP, ChildAlternatives[i]);
@@ -2111,8 +2111,7 @@ void TreePatternNode::InlinePatternFragments(
     }
 
     // The end result is an all-pairs construction of the resultant pattern.
-    std::vector<unsigned> Idxs;
-    Idxs.resize(ChildAlternatives.size());
+    std::vector<unsigned> Idxs(ChildAlternatives.size());
     bool NotDone;
     do {
       // Create the variant and add it to the output list.
@@ -4506,8 +4505,7 @@ static void CombineChildVariants(
       return;
 
   // The end result is an all-pairs construction of the resultant pattern.
-  std::vector<unsigned> Idxs;
-  Idxs.resize(ChildVariants.size());
+  std::vector<unsigned> Idxs(ChildVariants.size());
   bool NotDone;
   do {
 #ifndef NDEBUG
@@ -4668,8 +4666,8 @@ static void GenerateVariantsOf(TreePatternNodePtr N,
   }
 
   // Compute permutations of all children.
-  std::vector<std::vector<TreePatternNodePtr>> ChildVariants;
-  ChildVariants.resize(N->getNumChildren());
+  std::vector<std::vector<TreePatternNodePtr>> ChildVariants(
+      N->getNumChildren());
   for (unsigned i = 0, e = N->getNumChildren(); i != e; ++i)
     GenerateVariantsOf(N->getChildShared(i), ChildVariants[i], CDP, DepVars);
 
-- 
2.7.4