-------- Forwarded Message --------
Subject: [patch] implement generic debug() for vectors and hash sets
Date: Mon, 16 Oct 2017 09:52:51 -0400
From: Aldy Hernandez <aldyh@redhat.com>
To: gcc-patches <gcc-patches@gcc.gnu.org>

We have a generic mechanism for dumping types from the debugger with:

(gdb) call debug(some_type)

However, even though most types are implemented, we have no canonical
way of dumping vectors or hash sets.

The attached patch fixes this oversight.  With it you can call
debug(vec<>) and debug(hash_set<>) with the following types: rtx,
tree, basic_block, edge, rtx_insn.  More can be added simply by adding
a debug_slim(your_type) overload and calling:

   DEFINE_DEBUG_VEC (your_type)
   DEFINE_DEBUG_HASH_SET (your_type)

Here is an example of how things look with this patch:

vec of edges:
[0] = <edge 0x0x7f3f81c0d700 (6 -> 10)>

vec of bbs:
[0] = <basic_block 0x7f3f81ac9410 (6)>
[1] = <basic_block 0x7f3f81ac96e8 (10)>

vec of trees:
[0] =  <integer_type 0x7f3f81ad55e8 int>
[1] =  <integer_type 0x7f3f81ad5498 short int>
[2] =  <integer_cst 0x7f3f81ada078 0>

vec of rtx:
[0] = (reg:SI 87)
[1] = (reg:SI 87)

hash of bbs:
<basic_block 0x7f3f81ac96e8 (10)>
<basic_block 0x7f3f81ac9410 (6)>

OK for mainline?