swr: [rasterizer jitter] Pass LLVM-IR size into jitter

Reviewed-by: Bruce Cherniak <bruce.cherniak@intel.com>

src/gallium/drivers/swr/rasterizer/jitter/JitManager.cpp

@@ -190,9 +190,9 @@ void JitManager::SetupNewModule()
 
 //////////////////////////////////////////////////////////////////////////
 /// @brief Create new LLVM module from IR.
-bool JitManager::SetupModuleFromIR(const uint8_t *pIR)
+bool JitManager::SetupModuleFromIR(const uint8_t *pIR, size_t length)
 {
-    std::unique_ptr<MemoryBuffer> pMem = MemoryBuffer::getMemBuffer(StringRef((const char*)pIR), "");
+    std::unique_ptr<MemoryBuffer> pMem = MemoryBuffer::getMemBuffer(StringRef((const char*)pIR, length), "");
 
     SMDiagnostic Err;
     std::unique_ptr<Module> newModule = parseIR(pMem.get()->getMemBufferRef(), Err, mContext);

src/gallium/drivers/swr/rasterizer/jitter/JitManager.h

@@ -178,7 +178,7 @@ struct JitManager
     std::string mCore;
 
     void SetupNewModule();
-    bool SetupModuleFromIR(const uint8_t *pIR);
+    bool SetupModuleFromIR(const uint8_t *pIR, size_t length);
 
     void DumpAsm(llvm::Function* pFunction, const char* fileName);
     static void DumpToFile(llvm::Function *f, const char *fileName);

src/gallium/drivers/swr/rasterizer/jitter/jit_api.h

@@ -59,6 +59,7 @@ struct JIT_COMPILE_INPUT
     SWR_SHADER_TYPE type;
 
     const void* pIR;        ///< Pointer to LLVM IR text.
+    size_t irLength;
 
     bool enableJitSampler;
 };