From 132f1c27770fa6dafdf14591878d301aedd5ae16 Mon Sep 17 00:00:00 2001
From: Jason Merrill <jason@redhat.com>
Date: Fri, 29 Oct 2021 16:39:01 -0400
Subject: [PATCH] c++: improve print_node of PTRMEM_CST
It's been inconvenient that pretty-printing of PTRMEM_CST didn't display
what member the constant refers to.
Adding that is complicated by the absence of a langhook for CONSTANT_CLASS_P
nodes; the simplest fix for that is to use the tcc_exceptional hook for
tcc_constant as well.
gcc/cp/ChangeLog:
* ptree.c (cxx_print_xnode): Handle PTRMEM_CST.
gcc/ChangeLog:
* langhooks.h (struct lang_hooks): Adjust comment.
* print-tree.c (print_node): Also call print_xnode hook for
tcc_constant class.
---
gcc/cp/ptree.c | 3 +++
gcc/langhooks.h | 2 +-
gcc/print-tree.c | 3 +--
3 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/gcc/cp/ptree.c b/gcc/cp/ptree.c
index ca7884db39bf..d514aa2cad27 100644
--- a/gcc/cp/ptree.c
+++ b/gcc/cp/ptree.c
@@ -379,6 +379,9 @@ cxx_print_xnode (FILE *file, tree node, int indent)
if (tree message = STATIC_ASSERT_MESSAGE (node))
print_node (file, "message", message, indent+4);
break;
+ case PTRMEM_CST:
+ print_node (file, "member", PTRMEM_CST_MEMBER (node), indent+4);
+ break;
default:
break;
}
diff --git a/gcc/langhooks.h b/gcc/langhooks.h
index 3e89134e8b43..3db8f2a550d9 100644
--- a/gcc/langhooks.h
+++ b/gcc/langhooks.h
@@ -477,7 +477,7 @@ struct lang_hooks
void (*print_statistics) (void);
/* Called by print_tree when there is a tree of class tcc_exceptional
- that it doesn't know how to display. */
+ or tcc_constant that it doesn't know how to display. */
lang_print_tree_hook print_xnode;
/* Called to print language-dependent parts of tcc_decl, tcc_type,
diff --git a/gcc/print-tree.c b/gcc/print-tree.c
index d1fbd044c27b..b5dc523fcb1e 100644
--- a/gcc/print-tree.c
+++ b/gcc/print-tree.c
@@ -1004,8 +1004,7 @@ print_node (FILE *file, const char *prefix, tree node, int indent,
break;
default:
- if (EXCEPTIONAL_CLASS_P (node))
- lang_hooks.print_xnode (file, node, indent);
+ lang_hooks.print_xnode (file, node, indent);
break;
}
--
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