[TSAR, Transform] Add handling of nested pragmas.

Author: yukatan1701

include/tsar/Support/DiagnosticKinds.td

@@ -176,3 +176,8 @@ def error_expect_function_param : Error<"expected function parameter name">;
 
 def note_record_member_unknown: Error<"record has no member '%0'">;
 def note_declared_here: Note<"declared here">;
+
+def warn_loop_swapping_diff_reduction: Warning<"unable to swap loops due to the different reduction types">;
+def warn_loop_swapping_true_anti_dependence: Warning<"unable to swap loops due to the true or anti dependence">;
+def warn_loop_swapping_missing_loop: Warning<"not enough loops for swapping">;
+def warn_loop_swapping_redundant_loop: Warning<"too many loops for swapping, ignore redundant">;

include/tsar/Transform/Clang/LoopSwapping.h

@@ -92,7 +92,7 @@ ModulePass * createClangStructureReplacementPass();
 /// Initialize a pass to perform replacement of access to structure fields
 /// with separate variables.
 void initializeClangStructureReplacementPassPass(PassRegistry &Registry);
-}
+
 /// Creates a pass to perform swapping of loops.
 FunctionPass * createClangLoopSwapping();