Little adjustment

src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp

@@ -217,6 +217,10 @@ Id EmitShuffleIndex(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id cla
 
 Id EmitShuffleUp(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp,
                  Id segmentation_mask) {
+    if (!StageSupportsSubgroups(ctx)) {
+        SetInBoundsFlag(inst, ctx.false_value);
+        return value;
+    }
     const Id thread_id{EmitLaneId(ctx)};
     const Id max_thread_id{GetMaxThreadId(ctx, thread_id, clamp, segmentation_mask)};
     Id src_thread_id{ctx.OpISub(ctx.U32[1], thread_id, index)};
@@ -232,6 +236,10 @@ Id EmitShuffleUp(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp,
 
 Id EmitShuffleDown(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp,
                    Id segmentation_mask) {
+    if (!StageSupportsSubgroups(ctx)) {
+        SetInBoundsFlag(inst, ctx.false_value);
+        return value;
+    }
     const Id thread_id{EmitLaneId(ctx)};
     const Id max_thread_id{GetMaxThreadId(ctx, thread_id, clamp, segmentation_mask)};
     Id src_thread_id{ctx.OpIAdd(ctx.U32[1], thread_id, index)};
@@ -247,6 +255,10 @@ Id EmitShuffleDown(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clam
 
 Id EmitShuffleButterfly(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id clamp,
                         Id segmentation_mask) {
+    if (!StageSupportsSubgroups(ctx)) {
+        SetInBoundsFlag(inst, ctx.false_value);
+        return value;
+    }
     const Id thread_id{EmitLaneId(ctx)};
     const Id max_thread_id{GetMaxThreadId(ctx, thread_id, clamp, segmentation_mask)};
     Id src_thread_id{ctx.OpBitwiseXor(ctx.U32[1], thread_id, index)};