[PATCH 3/3] Add parentheses around DECL_INIT for .original [PR23872]

[Andrew Pinski <quic_apinski@quicinc.com>]

When we have :
`void f (int y, int z) { int x = ( z++,y); }`

This would have printed the decl's initializer without
parentheses which can confusion if you think that is defining
another variable rather than the compound expression.

This adds parenthese around DECL_INIT if it was a COMPOUND_EXPR.

Bootstrapped and tested on x86_64-linux-gnu.

gcc/ChangeLog:

	* tree-pretty-print.cc (print_declaration): Add parenthese
	around DECL_INIT if it was a COMPOUND_EXPR.

Signed-off-by: Andrew Pinski <quic_apinski@quicinc.com>
---
 gcc/tree-pretty-print.cc | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/gcc/tree-pretty-print.cc b/gcc/tree-pretty-print.cc
index 825ba74443b..8b766dcd2b8 100644
--- a/gcc/tree-pretty-print.cc
+++ b/gcc/tree-pretty-print.cc
@@ -4240,7 +4240,14 @@ print_declaration (pretty_printer *pp, tree t, int spc, dump_flags_t flags, bool
 	  pp_equal (pp);
 	  pp_space (pp);
 	  if (!(flags & TDF_SLIM))
-	    dump_generic_node (pp, DECL_INITIAL (t), spc, flags, false);
+	    {
+	      bool need_paren = TREE_CODE (DECL_INITIAL (t)) == COMPOUND_EXPR;
+	      if (need_paren)
+		pp_left_paren (pp);
+	      dump_generic_node (pp, DECL_INITIAL (t), spc, flags, false);
+	      if (need_paren)
+		pp_right_paren (pp);
+	    }
 	  else
 	    pp_string (pp, "<<< omitted >>>");
 	}
-- 
2.43.0