Disable RegPressureLoopControl for OCL shaders

Disable RegPressureLoopControl for OCL shaders

Author: admitric

IGC/Compiler/CISACodeGen/ShaderCodeGen.cpp

@@ -56,6 +56,7 @@ SPDX-License-Identifier: MIT
 #include "Compiler/CISACodeGen/LowerGEPForPrivMem.hpp"
 #include "Compiler/CISACodeGen/POSH_RemoveNonPositionOutput.h"
 #include "Compiler/CISACodeGen/RegisterEstimator.hpp"
+#include "Compiler/CISACodeGen/RegisterPressureEstimate.hpp"
 #include "Compiler/CISACodeGen/OpenCLKernelCodeGen.hpp"
 #include "Compiler/CISACodeGen/RayTracingShaderLowering.hpp"
 #include "Compiler/CISACodeGen/RayTracingStatefulPass.h"
@@ -75,7 +76,6 @@ SPDX-License-Identifier: MIT
 #include "Compiler/Optimizer/OpenCLPasses/PrivateMemory/PrivateMemoryToSLM.hpp"
 #include "Compiler/Optimizer/OpenCLPasses/ProgramScopeConstants/ProgramScopeConstantResolution.hpp"
 #include "Compiler/Optimizer/OpenCLPasses/WIFuncs/WIFuncResolution.hpp"
-#include "Compiler/Optimizer/OpenCLPasses/RegPressureLoopControl/RegPressureLoopControl.hpp"
 #include "Compiler/Optimizer/OpenCLPasses/BreakConstantExpr/BreakConstantExpr.hpp"
 #include "Compiler/Optimizer/OpenCLPasses/ReplaceUnsupportedIntrinsics/ReplaceUnsupportedIntrinsics.hpp"
 #include "Compiler/Optimizer/PreCompiledFuncImport.hpp"
@@ -885,10 +885,6 @@ void AddLegalizationPasses(CodeGenContext& ctx, IGCPassManager& mpm, PSSignature
         {
             mpm.add(createDisableLICMForSpecificLoops());
             mpm.add(createLICMPass());
-            if (ctx.type == ShaderType::OPENCL_SHADER)
-            {
-                mpm.add(new RegPressureLoopControl());
-            }
             mpm.add(llvm::createEarlyCSEPass());
         }
         mpm.add(createAggressiveDCEPass());

IGC/Compiler/Optimizer/OpenCLPasses/CMakeLists.txt

@@ -40,7 +40,6 @@ add_subdirectory(PoisonFP64KernelsPass)
 add_subdirectory(PrivateMemory)
 add_subdirectory(ProgramScopeConstants)
 add_subdirectory(RayTracing)
-add_subdirectory(RegPressureLoopControl)
 add_subdirectory(ReplaceUnsupportedIntrinsics)
 add_subdirectory(ResourceAllocator)
 add_subdirectory(RewriteLocalSize)
@@ -88,7 +87,6 @@ set(IGC_BUILD__SRC__Optimizer_OpenCLPasses_All
     ${IGC_BUILD__SRC__OpenCLPasses_PrivateMemory}
     ${IGC_BUILD__SRC__OpenCLPasses_ProgramScopeConstants}
     ${IGC_BUILD__SRC__OpenCLPasses_Raytracing}
-    ${IGC_BUILD__SRC__OpenCLPasses_RegPressureLoopControl}
     ${IGC_BUILD__SRC__OpenCLPasses_ReplaceUnsupportedIntrinsics}
     ${IGC_BUILD__SRC__OpenCLPasses_ResourceAllocator}
     ${IGC_BUILD__SRC__OpenCLPasses_RewriteLocalSize}
@@ -141,7 +139,6 @@ set(IGC_BUILD__HDR__Optimizer_OpenCLPasses_All
     ${IGC_BUILD__HDR__OpenCLPasses_PrivateMemory}
     ${IGC_BUILD__HDR__OpenCLPasses_ProgramScopeConstants}
     ${IGC_BUILD__HDR__OpenCLPasses_Raytracing}
-    ${IGC_BUILD__HDR__OpenCLPasses_RegPressureLoopControl}
     ${IGC_BUILD__HDR__OpenCLPasses_ReplaceUnsupportedIntrinsics}
     ${IGC_BUILD__HDR__OpenCLPasses_ResourceAllocator}
     ${IGC_BUILD__HDR__OpenCLPasses_RewriteLocalSize}
@@ -196,7 +193,6 @@ set(IGC_BUILD_Compiler_OpenCLPasses_Groups
     Compiler__OpenCLPasses_PrivateMemory
     Compiler__OpenCLPasses_ProgramScopeConstants
     Compiler__OpenCLPasses_Raytracing
-    Compiler__OpenCLPasses_RegPressureLoopControl
     Compiler__OpenCLPasses_ReplaceUnsupportedIntrinsics
     Compiler__OpenCLPasses_RewriteLocalSize
     Compiler__OpenCLPasses_ScalarArgAsPointer