[llvm] [ConstraintElimination] Use std::move in the constructor (NFC) (PR #79259)

[Kazu Hirata via llvm-commits]

https://github.com/kazutakahirata created https://github.com/llvm/llvm-project/pull/79259

Moving the contents of Coefficients saves 0.43% of heap allocations
during the compilation of a large preprocessed file, namely
X86ISelLowering.cpp, for the X86 target.


>From 71831f5b00c8325a51ccb4baa53c64341004442d Mon Sep 17 00:00:00 2001
From: Kazu Hirata <kazu at google.com>
Date: Sun, 21 Jan 2024 19:20:07 -0800
Subject: [PATCH] [ConstraintElimination] Use std::move in the constructor
 (NFC)

Moving the contents of Coefficients saves 0.43% of heap allocations
during the compilation of a large preprocessed file, namely
X86ISelLowering.cpp, for the X86 target.
---
 llvm/lib/Transforms/Scalar/ConstraintElimination.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp b/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
index 8f09569d0d9cc9f..1242cf3ea601cf1 100644
--- a/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/ConstraintElimination.cpp
@@ -231,8 +231,8 @@ struct ConstraintTy {
 
   ConstraintTy(SmallVector<int64_t, 8> Coefficients, bool IsSigned, bool IsEq,
                bool IsNe)
-      : Coefficients(Coefficients), IsSigned(IsSigned), IsEq(IsEq), IsNe(IsNe) {
-  }
+      : Coefficients(std::move(Coefficients)), IsSigned(IsSigned), IsEq(IsEq),
+        IsNe(IsNe) {}
 
   unsigned size() const { return Coefficients.size(); }