Add CSE pass after LICM in CodeGen

admitric · igcbot · commit c7bb67d38b2c · 2023-03-30T11:44:11.000+02:00
diff --git a/IGC/Compiler/CISACodeGen/ShaderCodeGen.cpp b/IGC/Compiler/CISACodeGen/ShaderCodeGen.cpp
@@ -811,6 +811,7 @@ void AddLegalizationPasses(CodeGenContext& ctx, IGCPassManager& mpm, PSSignature
             {
                 mpm.add(new RegPressureLoopControl());
             }
+            mpm.add(llvm::createEarlyCSEPass());
         }
         mpm.add(createAggressiveDCEPass());
         // As DPC++ FE apply LICM we cannot reduce register pressure just

Original file line number	Diff line number	Diff line change
`@@ -811,6 +811,7 @@ void AddLegalizationPasses(CodeGenContext& ctx, IGCPassManager& mpm, PSSignature`
`811`	`811`	`{`
`812`	`812`	`mpm.add(new RegPressureLoopControl());`
`813`	`813`	`}`
	`814`	`+ mpm.add(llvm::createEarlyCSEPass());`
`814`	`815`	`}`
`815`	`816`	`mpm.add(createAggressiveDCEPass());`
`816`	`817`	`// As DPC++ FE apply LICM we cannot reduce register pressure just`