303504 2025-12-03 15:12:00 -0800 REGRESSION(303805@main) GCC 12 build broken as the new generated RenderStyle::display() is not constexpr 2025-12-04 05:04:22 -0800 1 1 1 Unclassified WebKit WebCore Misc. WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 303398 P2 Normal --- 303398 1 lmoura webkit-unassigned bugs-noreply sam oldest_to_newest 2163048 0 lmoura 2025-12-03 15:12:00 -0800 The GCC 12 stable bots for WPE and GTK broke after 303805@main with the following error: ``` In file included from ../../../Source/WebCore/rendering/style/RenderStyleSetters.h:29, from WebCore/DerivedSources/StyleBuilderGenerated.cpp:8, from WebCore/DerivedSources/unified-sources/UnifiedSource-3a52ce78-198.cpp:8: ../../../Source/WebCore/rendering/style/RenderStyleInlines.h: In member function ‘constexpr bool WebCore::RenderStyle::isDisplayRegionType() const’: ../../../Source/WebCore/rendering/style/RenderStyleInlines.h:228:19: error: call to non-‘constexpr’ function ‘WebCore::DisplayType WebCore::RenderStyle::display() const’ 228 | return display() == DisplayType::Block | ~~~~~~~^~ In file included from ../../../Source/WebCore/rendering/style/RenderStyleInlines.h:70: WebCore/PrivateHeaders/WebCore/RenderStyleInlinesGenerated.h:63:20: note: ‘WebCore::DisplayType WebCore::RenderStyle::display() const’ declared here 63 | inline DisplayType RenderStyle::display() const | ^~~~~~~~~~~ ../../../Source/WebCore/rendering/style/RenderStyleInlines.h: In member function ‘constexpr bool WebCore::RenderStyle::doesDisplayGenerateBlockContainer() const’: ../../../Source/WebCore/rendering/style/RenderStyleInlines.h:270:33: error: call to non-‘constexpr’ function ‘WebCore::DisplayType WebCore::RenderStyle::display() const’ 270 | auto display = this->display(); | ~~~~~~~~~~~~~^~ <snip long list> ``` As commented by Claudio in the PR[1] earlier today, this is happening because `RenderStyle::display()` lost the constexpr tag as this method is now generated: ``` - constexpr DisplayType display() const { return static_cast<DisplayType>(m_nonInheritedFlags.effectiveDisplay); } + inline DisplayType display() const; ``` [1] https://github.com/WebKit/WebKit/pull/54710#pullrequestreview-3534814541 2163199 1 lmoura 2025-12-04 05:04:22 -0800 *** This bug has been marked as a duplicate of bug 303398 ***