Fix a regression of removing isOffChip input

This is to fix a regression of
GPUOpen-Drivers#2861. When TES is mapped to
HW VS (no NGG), this SGPR must be present.

lgc/patch/ShaderInputs.cpp

@@ -607,9 +607,15 @@ uint64_t ShaderInputs::getShaderArgTys(PipelineState *pipelineState, ShaderStage
     break;
   case ShaderStageTessEval:
     if (!hasGs) {
-      // TES as hardware VS: handle HW stream-out.
+      // TES as hardware VS
+
+      // NOTE: The SGPR corresponding to streamOutInfo is shared with isOffChip for off-chip tessellation. It is
+      // controlled by SPI_SHADER_PGM_RSRC2_VS.SO_EN or SPI_SHADER_PGM_RSRC2_VS.OC_LDS_EN. Since we are always in
+      // off-chip tessellation mode, it must be present even if there is no stream-out.
+      getShaderInputUsage(shaderStage, ShaderInput::StreamOutInfo)->enable();
+
+      // Handle HW stream-out.
       if (enableHwXfb) {
-        getShaderInputUsage(shaderStage, ShaderInput::StreamOutInfo)->enable();
         getShaderInputUsage(shaderStage, ShaderInput::StreamOutWriteIndex)->enable();
         for (unsigned i = 0; i < MaxTransformFeedbackBuffers; ++i) {
           if (xfbStrides[i] > 0)