From 15cba08db04f927b69adacbc04d23102b8b25ca5 Mon Sep 17 00:00:00 2001
From: Georg Lehmann <dadschoorse@gmail.com>
Date: Wed, 15 Jan 2025 17:44:50 +0100
Subject: [PATCH] aco: guard small_vector move/copy operator against self
 assignment

Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33043>
---
 src/amd/compiler/aco_util.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/amd/compiler/aco_util.h b/src/amd/compiler/aco_util.h
index 607b10e31cb..a945a1ffaea 100644
--- a/src/amd/compiler/aco_util.h
+++ b/src/amd/compiler/aco_util.h
@@ -1080,6 +1080,8 @@ public:
 
    constexpr small_vec& operator=(const small_vec& other)
    {
+      if (&other == this)
+         return *this;
       clear();
       reserve(other.capacity);
       length = other.length;
@@ -1089,6 +1091,8 @@ public:
 
    constexpr small_vec& operator=(small_vec&& other) noexcept
    {
+      if (&other == this)
+         return *this;
       clear();
       void* ptr = this;
       memcpy(ptr, &other, sizeof(*this));