Initialize CShader members, use std::move

Coverity related fixes.
Initialize members, use std::move.

Author: fda0

IGC/Compiler/CISACodeGen/CShaderProgram.hpp

@@ -36,7 +36,7 @@ namespace IGC
         CodeGenContext* GetContext() { return m_context; }
 
         llvm::Function* getLLVMFunction() const { return m_kernel; }
-        ShaderStats* m_shaderStats;
+        ShaderStats* m_shaderStats = nullptr;
 
         // invoked to clear Func ptr when the current module is deleted (so is func within it).
         void clearBeforeRetry();
@@ -51,8 +51,8 @@ namespace IGC
         CShader*& GetShaderPtr(SIMDMode simd, ShaderDispatchMode mode);
         CShader* CreateNewShader(SIMDMode simd);
 
-        CodeGenContext* m_context;
-        llvm::Function* m_kernel;
+        CodeGenContext* m_context = nullptr;
+        llvm::Function* m_kernel = nullptr;
         std::array<CShader*, 9> m_SIMDshaders;
 
     public:

IGC/Compiler/CISACodeGen/IGCVectorizer.h

@@ -67,7 +67,7 @@ class IGCVectorizer : public llvm::FunctionPass {
     std::unique_ptr<std::ofstream> OutputLogFile;
     std::string LogStr;
     llvm::raw_string_ostream OutputLogStream = raw_string_ostream(LogStr);
-    Module* M;
+    Module* M = nullptr;
     void initializeLogFile(Function& F);
     void writeLog();
 

IGC/Compiler/CISACodeGen/ShaderCodeGen.hpp

@@ -392,11 +392,11 @@ class CShader
 
     ModuleMetaData* m_ModuleMetadata = nullptr;
     /// SIMD Size is the default size of instructions
-    ShaderDispatchMode m_ShaderDispatchMode;
+    ShaderDispatchMode m_ShaderDispatchMode{};
     /// the default emit size for this shader. This is the default size for variables as well
     /// as the default execution size for each instruction. encoder may override it explicitly
     /// via CEncoder::SetSIMDSize
-    SIMDMode m_SIMDSize;
+    SIMDMode m_SIMDSize{};
     uint8_t m_numberInstance = 0;
     PushInfo pushInfo;
     EmitPass* m_EmitPass = nullptr;
@@ -696,7 +696,7 @@ class CShader
     std::vector<CVariable*> patchConstantSetup;
     std::vector<CVariable*> perPrimitiveSetup;
 
-    uint m_maxBlockId;
+    uint m_maxBlockId = 0;
 
     CVariable* m_R0 = nullptr;
     CVariable* m_NULL = nullptr;