From b764a15c2389e5f46e3ab2e75481740ec42ba224 Mon Sep 17 00:00:00 2001
From: Stephan Hartmann <stha09@googlemail.com>
Date: Thu, 29 Sep 2022 15:02:38 +0000
Subject: [PATCH] libstdc++: replace bit_set::operator!= in ityp_bitset

C++20 removed the operator.

Bug: chromium:957519
Change-Id: Iba9c3fcdf4d7d3c4286b5f5dac86304faa6a0c02
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/104201
Commit-Queue: Stephan Hartmann <stha09@googlemail.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
---
 src/dawn/common/ityp_bitset.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/dawn/common/ityp_bitset.h b/src/dawn/common/ityp_bitset.h
index 0be94a7e72..a5544e15d2 100644
--- a/src/dawn/common/ityp_bitset.h
+++ b/src/dawn/common/ityp_bitset.h
@@ -58,7 +58,7 @@ class bitset : private std::bitset<N> {
     }
 
     bool operator!=(const bitset& other) const noexcept {
-        return Base::operator!=(static_cast<const Base&>(other));
+        return !Base::operator==(static_cast<const Base&>(other));
     }
 
     bitset& operator&=(const bitset& other) noexcept {