GBE/DebugInfo: Enable new feature

1. Add a bool env OCL_DEBUGINFO to enable generate debug infomation while compiling cl source, set it false as default value.
2. Define a structure type DebugInfo.

Signed-off-by: Yannan Bai <yannan.bai@intel.com>
Reviewed-by: Ruiling Song <ruiling.song@intel.com>

2 files changed, 7 insertions, 0 deletions

diff --git a/backend/src/backend/program.cpp b/backend/src/backend/program.cpp
index adf22182..e2d3f4f3 100644
--- a/backend/src/backend/program.cpp
+++ b/backend/src/backend/program.cpp
@@ -529,6 +529,7 @@ namespace gbe {
     program->CleanLlvmResource();
   }
 
+  BVAR(OCL_DEBUGINFO, false);
 #ifdef GBE_COMPILER_AVAILABLE
   static bool buildModuleFromSource(const char *source, llvm::Module** out_module, llvm::LLVMContext* llvm_ctx,
                                     std::string dumpLLVMFileName, std::vector<std::string>& options, size_t stringSize, char *err,
@@ -565,6 +566,7 @@ namespace gbe {
 #endif /* LLVM_VERSION_MINOR <= 2 */
     args.push_back("stringInput.cl");
     args.push_back("-ffp-contract=off");
+    if(OCL_DEBUGINFO) args.push_back("-g");
 
     // The compiler invocation needs a DiagnosticsEngine so it can report problems
     std::string ErrorString;
diff --git a/backend/src/backend/program.h b/backend/src/backend/program.h
index f948a6b3..51797ee4 100644
--- a/backend/src/backend/program.h
+++ b/backend/src/backend/program.h
@@ -36,6 +36,11 @@
 extern "C" {
 #endif /* __cplusplus */
 
+typedef struct _DebugInfo {
+    uint32_t line;
+    uint32_t col;
+} DebugInfo;
+
 /*! Opaque structure that interfaces a GBE program */
 typedef struct _gbe_program *gbe_program;