shader: add BVH stack operations

src/graphics/shader/recompiler/ir/Serialize.h

@@ -155,7 +155,7 @@ KYTY_IO_FIELDS(SampledResourcePair, a, b, c)
 KYTY_IO_FIELDS(StageInput, a, b, c, d, e)
 KYTY_IO_FIELDS(StageOutput, a, b, c, d)
 KYTY_IO_FIELDS(ShaderInfo, a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z,
-               A, B, C, D, E, F, G, H, I, J, K)
+               A, B, C, D, E, F, G, H, I, J, K, L)
 KYTY_IO_FIELDS(DescriptorSource::IndirectDescriptor::SelectorRead::CountedRows, a, b)
 KYTY_IO_FIELDS(DescriptorSource::IndirectDescriptor::SelectorRead::MaskRanks, a, b, c)
 KYTY_IO_FIELDS(DescriptorSource::IndirectDescriptor::SelectorRead, a, b, c, d, e, f, g, h, i, j, k,

src/graphics/shader/recompiler/ir/ShaderIR.h

@@ -543,6 +543,7 @@ struct ShaderInfo {
 	bool                            uses_image_heap               = false;
 	bool                            uses_dispatch_threads         = false;
 	bool                            bvh                           = false;
+	bool                            bvh_stack                     = false;
 	bool                            subgroup_ballot               = false;
 	bool                            subgroup_vote                 = false;
 	bool                            subgroup_barrier              = false;

src/graphics/shader/recompiler/ir/opcodes/ValueOpcodes.cpp

@@ -76,7 +76,8 @@ bool HasSideEffects(ValueOpcode opcode) {
 		return true;
 	}
 	const auto shared_access = SharedAccessOf(opcode);
-	if (shared_access == SharedAccess::Write || shared_access == SharedAccess::Atomic ||
+	if (shared_access == SharedAccess::Write || shared_access == SharedAccess::ReadWrite ||
+	    shared_access == SharedAccess::Atomic ||
 	    shared_access == SharedAccess::Append || shared_access == SharedAccess::Consume) {
 		return true;
 	}
@@ -156,6 +157,7 @@ uint32_t BufferComponentCount(ValueOpcode opcode) {
 
 SharedAccess SharedAccessOf(ValueOpcode opcode) {
 	switch (opcode) {
+		case ValueOpcode::BvhStack: return SharedAccess::ReadWrite;
 		case ValueOpcode::LoadSharedU8:
 		case ValueOpcode::LoadSharedU16:
 		case ValueOpcode::LoadSharedU32:

src/graphics/shader/recompiler/ir/opcodes/ValueOpcodes.h

@@ -17,7 +17,7 @@ enum class ValueOpcode : uint16_t {
 };
 
 enum class BufferAccess { None, Read, Write, Atomic };
-enum class SharedAccess { None, Read, Write, Atomic, Append, Consume };
+enum class SharedAccess { None, Read, Write, ReadWrite, Atomic, Append, Consume };
 enum class AddressAccess { None, Read, Write };
 enum class ImageAccess { None, Read, Write, Atomic };
 enum class ImageResourceClass { None, Sampled, Storage };

src/graphics/shader/recompiler/ir/opcodes/ValueOpcodes.inc

@@ -318,6 +318,7 @@ VALUE_OPCODE(SwizzleU32, U32, U32, U32, U1)
 
 VALUE_OPCODE(ImageQueryDimensions, U32x4, ImageResource, ImageAddress)
 VALUE_OPCODE(BvhIntersect, U32x4, U32x4, ImageAddress, U1)
+VALUE_OPCODE(BvhStack, U32x2, U32, U32, U32x4, U32x4, U1)
 VALUE_OPCODE(ImageQueryLod, U32x4, ImageResource, SamplerResource, ImageAddress)
 VALUE_OPCODE(ImageRead, U32x4, ImageResource, ImageAddress, U1)
 VALUE_OPCODE(ImageWrite, Void, ImageResource, ImageAddress, U32x4, U1)

src/graphics/shader/recompiler/ir/passes/ShaderInfoCollection.cpp

@@ -515,6 +515,7 @@ void Visit(Program& program, ShaderStageInputInfo input_info, InputUsage& inputs
 		case ValueOpcode::StoreCompletion: info.subgroup_barrier = true; break;
 		case ValueOpcode::DataCacheInvalidate: info.coherent_buffers = true; break;
 		case ValueOpcode::BvhIntersect: info.bvh = true; break;
+		case ValueOpcode::BvhStack: info.bvh_stack = true; break;
 		case ValueOpcode::ConditionRef:
 			info.subgroup_vote |=
 			    inst.Flags<CFG::BranchCondition>() != CFG::BranchCondition::ScalarInstruction;