From 528ca0d0e55df88a9a97ba071ae803a62a34ae5a Mon Sep 17 00:00:00 2001 From: Copilot <198982749+Copilot@users.noreply.github.com> Date: Thu, 24 Jul 2025 22:05:51 -0700 Subject: Fix compiler crash when enum is used as vertex output data (#7915) * Initial plan * Initial investigation and plan for enum vertex output fix Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> * Fix compiler crash when enum is used as vertex output data Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> * Fix compiler crash when enum is used as vertex output data Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> * Address reviewer feedback: use SLANG_ASSERT and improve CHECK directives Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> --------- Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com> Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com> --- source/slang/slang-parameter-binding.cpp | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'source/slang/slang-parameter-binding.cpp') diff --git a/source/slang/slang-parameter-binding.cpp b/source/slang/slang-parameter-binding.cpp index 06d2b1f34..89e633857 100644 --- a/source/slang/slang-parameter-binding.cpp +++ b/source/slang/slang-parameter-binding.cpp @@ -2554,6 +2554,16 @@ static RefPtr processEntryPointVaryingParameter( globalGenericParamDecl.getDecl()); } } + else if (auto enumDeclRef = declRef.as()) + { + // We handle an enumeration type as its tag type for varying parameters. + // This allows enums to be used in vertex output/input similar to their + // underlying integer types. + // + auto tagType = enumDeclRef.getDecl()->tagType; + SLANG_ASSERT(tagType); + return processEntryPointVaryingParameter(context, tagType, state, varLayout); + } else if (auto associatedTypeParam = declRef.as()) { RefPtr assocTypeLayout = new TypeLayout(); -- cgit v1.2.3