2010-06-21 Zoltan Varga <vargaz@gmail.com>

2010-06-21  Zoltan Varga  <vargaz@gmail.com>

	* mini-llvm.c (exception_cb): For nested clauses, add the same try range to the
	nesting clause too.
	(mono_llvm_check_method_supported): Enable llvm for methods with nested clauses.
	(mono_llvm_emit_method): Instead of calling 'mono_resume_unwind' directly, call a
	trampoline which saves the context, so changes made to callee saved registers in
	finally clauses are visible to a nesting catch clause.

	* exceptions-amd64.c: Add a resume_unwind trampoline for LLVM.

	* mini-exceptions.c (mono_handle_exception_internal): Fix support for nested clauses
	in LLVM compiled code.
	(mono_handle_exception_internal): Add a 'ctx' argument containing the state after
	the finally handler has ran.

	* mini.h (ResumeState): New structure containing information required to resume
	exception handling after executing LLVM compiled finally clauses.

svn path=/trunk/mono/; revision=159274