This adds the SSA name version to the gdb pretty-printing of SSA names.

(gdb) p (tree)$1
$5 = <ssa_name 0x7ffff68435a0 323>

Tested (see above...).

OK?

Thanks,
Richard.

2020-04-15  Richard Biener  <rguent...@suse.de>

        * gdbhooks.py (TreePrinter): Print SSA_NAME_VERSION of SSA_NAME
        nodes.
---
 gcc/gdbhooks.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gcc/gdbhooks.py b/gcc/gdbhooks.py
index e9acc373126..f6aef9ceae8 100644
--- a/gcc/gdbhooks.py
+++ b/gcc/gdbhooks.py
@@ -154,6 +154,7 @@ tree_code_dict = 
gdb.types.make_enum_dict(gdb.lookup_type('enum tree_code'))
 # ...and look up specific values for use later:
 IDENTIFIER_NODE = tree_code_dict['IDENTIFIER_NODE']
 TYPE_DECL = tree_code_dict['TYPE_DECL']
+SSA_NAME = tree_code_dict['SSA_NAME']
 
 # Similarly for "enum tree_code_class" (tree.h):
 tree_code_class_dict = gdb.types.make_enum_dict(gdb.lookup_type('enum 
tree_code_class'))
@@ -252,6 +253,8 @@ class TreePrinter:
                         result += ' %s' % 
tree_TYPE_NAME.DECL_NAME().IDENTIFIER_POINTER()
         if self.node.TREE_CODE() == IDENTIFIER_NODE:
             result += ' %s' % self.node.IDENTIFIER_POINTER()
+       if self.node.TREE_CODE() == SSA_NAME:
+           result += ' %u' % self.gdbval['base']['u']['version']
         # etc
         result += '>'
         return result
-- 
2.13.7

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