From ce87ab925d06a784eec194081e00a1b4c9b94d0c Mon Sep 17 00:00:00 2001 From: "Harsh Aggarwal (NVIDIA)" Date: Mon, 7 Apr 2025 13:26:11 +0530 Subject: Support for Payload Access Qualifiers (#3448) (#6595) * Add support for Ray Payload Access Qualifiers (PAQs) (#3448) - Added [raypayload] attribute for struct declarations - Implemented field validation requiring read/write access qualifiers - Added diagnostic error for missing qualifiers - Enabled PAQs in DXC compiler and HLSL emission - Added new test demonstrating PAQ syntax - Implemented proper handling of ray payload attributes in IR generation * format code * Cleanup: Remove unused vars * Add check to enablePAQ only for profile >= lib_6_7 * Review Fix - Add PAQ support for DX Raytracing add enablePAQ flag to DownstreamCompileOpitons, improve PAQ handling update raypayload-attribute-paq.slang to ensure hlsl and dxil is validated * Add diagnostic test for missing paq for lib_6_7 Compile using `-disable-payload-qualifiers` aka lib_6_6 profile raypayload-attribute-no-struct.slang and raypayload-attribute.slang --------- Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com> Co-authored-by: Ellie Hermaszewska --- source/slang/slang-lower-to-ir.cpp | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'source/slang/slang-lower-to-ir.cpp') diff --git a/source/slang/slang-lower-to-ir.cpp b/source/slang/slang-lower-to-ir.cpp index e6ec68660..260596dc3 100644 --- a/source/slang/slang-lower-to-ir.cpp +++ b/source/slang/slang-lower-to-ir.cpp @@ -9318,6 +9318,11 @@ struct DeclLoweringVisitor : DeclVisitor subBuilder->addDecoration(irAggType, kIROp_PayloadDecoration); } + if (const auto rayPayloadAttribute = decl->findModifier()) + { + subBuilder->addDecoration(irAggType, kIROp_RayPayloadDecoration); + } + subBuilder->setInsertInto(irAggType); // A `struct` that inherits from another `struct` must start -- cgit v1.2.3