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From: David Malcolm <dmalcolm@redhat.com>
To: gcc-patches@gcc.gnu.org, jit@gcc.gnu.org
Cc: David Malcolm <dmalcolm@redhat.com>
Subject: [PATCH 04/21] PR jit/63854: Fix memory leak within bb-reorder.c
Date: Wed, 01 Jan 2014 00:00:00 -0000	[thread overview]
Message-ID: <1416393981-39626-5-git-send-email-dmalcolm@redhat.com> (raw)
In-Reply-To: <1416393981-39626-1-git-send-email-dmalcolm@redhat.com>

Valgrind showed this leaking 200 bytes per iteration in one of
my testcases:

1,000 bytes in 5 blocks are definitely lost in loss record 200 of 241
   at 0x4A083AA: realloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
   by 0x5D75C5C: xrealloc (xmalloc.c:179)
   by 0x4E10734: void va_heap::reserve<basic_block_def*>(vec<basic_block_def*, va_heap, vl_embed>*&, unsigned int, bool) (vec.h:310
)
   by 0x4E105BB: vec<basic_block_def*, va_heap, vl_ptr>::reserve(unsigned int, bool) (vec.h:1428)
   by 0x4E15B37: vec<basic_block_def*, va_heap, vl_ptr>::safe_push(basic_block_def* const&) (vec.h:1537)
   by 0x5B61F44: find_rarely_executed_basic_blocks_and_crossing_edges() (bb-reorder.c:1614)
   by 0x5B63E90: (anonymous namespace)::pass_partition_blocks::execute(function*) (bb-reorder.c:2711)
   by 0x522354D: execute_one_pass(opt_pass*) (passes.c:2306)
   by 0x52237C4: execute_pass_list_1(opt_pass*) (passes.c:2358)
   by 0x52237F5: execute_pass_list_1(opt_pass*) (passes.c:2359)
   by 0x5223832: execute_pass_list(function*, opt_pass*) (passes.c:2369)
   by 0x4E4884F: cgraph_node::expand() (cgraphunit.c:1773)

Fix is trivial.

gcc/ChangeLog:
	PR jit/63854
	* bb-reorder.c
	(find_rarely_executed_basic_blocks_and_crossing_edges): Convert
	local bbs_in_hot_partition from vec<> to auto_vec<>.
---
 gcc/bb-reorder.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/bb-reorder.c b/gcc/bb-reorder.c
index 1f7c3ee..4ca3bb2 100644
--- a/gcc/bb-reorder.c
+++ b/gcc/bb-reorder.c
@@ -1582,7 +1582,7 @@ find_rarely_executed_basic_blocks_and_crossing_edges (void)
   edge e;
   edge_iterator ei;
   unsigned int cold_bb_count = 0;
-  vec<basic_block> bbs_in_hot_partition = vNULL;
+  auto_vec<basic_block> bbs_in_hot_partition;
 
   /* Mark which partition (hot/cold) each basic block belongs in.  */
   FOR_EACH_BB_FN (bb, cfun)
-- 
1.8.5.3

  parent reply	other threads:[~2014-11-19 10:40 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-01-01  0:00 [PATCH 00/21] PR 63854: Fix various memory leaks David Malcolm
2014-01-01  0:00 ` [PATCH 10/21] PR jit/63854: Fix leak of worklist within jit-recording.c David Malcolm
2014-01-01  0:00   ` Jeff Law
2014-01-01  0:00     ` David Malcolm
2014-01-01  0:00       ` Richard Biener
2014-01-01  0:00         ` Jeff Law
2014-01-01  0:00 ` [PATCH 18/21] PR jit/63854: Add "long-term" allocator to gcc::context David Malcolm
2014-01-01  0:00   ` Joseph Myers
2015-01-01  0:00     ` PING: " David Malcolm
2015-01-01  0:00       ` Joseph Myers
2014-01-01  0:00 ` [PATCH 01/21] PR jit/63854: Fix memory leak within gcc_options David Malcolm
2014-01-01  0:00   ` Richard Biener
2014-01-01  0:00 ` [PATCH 20/21] PR jit/63854: Fix leak in ipa-icf.c David Malcolm
2014-01-01  0:00   ` Richard Biener
2014-01-01  0:00 ` [PATCH 12/21] PR jit/63854: Add a valgrind suppresion file David Malcolm
2014-01-01  0:00   ` Richard Biener
2014-01-01  0:00     ` Jeff Law
2014-01-01  0:00       ` David Malcolm
2015-01-01  0:00         ` Hans-Peter Nilsson
2014-01-01  0:00 ` [PATCH 21/21] PR jit/63854: Fix leaks in test-fuzzer.c David Malcolm
2014-01-01  0:00   ` Jeff Law
2014-01-01  0:00 ` [PATCH 13/21] PR jit/63854: Add support for running "make check-jit" under valgrind David Malcolm
2014-01-01  0:00   ` Jeff Law
2014-01-01  0:00     ` [PATCH 00/05] Fixes to jit.exp David Malcolm
2014-01-01  0:00     ` [PATCH 13/21] PR jit/63854: Add support for running "make check-jit" under valgrind David Malcolm
2014-01-01  0:00       ` Jeff Law
2014-01-01  0:00     ` [PATCH 00/05] Fixes to jit.exp David Malcolm
2014-01-01  0:00       ` [PATCH 03/05] jit.exp: fix timeout bug inherited from dejagnu.exp David Malcolm
2014-01-01  0:00       ` [PATCH 01/05] jit.exp: Avoid embedding full paths into test results David Malcolm
2014-01-01  0:00         ` Mike Stump
2014-01-01  0:00       ` [PATCH 04/05] jit.exp: Verify the exit status of the spawnee David Malcolm
2014-01-01  0:00       ` [PATCH 05/05] Add command-line option-parsing to jit testcases David Malcolm
2014-01-01  0:00         ` PING: " David Malcolm
2014-01-01  0:00           ` Mike Stump
2014-01-01  0:00             ` David Malcolm
2014-01-01  0:00               ` Mike Stump
2014-01-01  0:00       ` [PATCH 02/05] PR jit/63854: Add support for running "make check-jit" under valgrind David Malcolm
2014-01-01  0:00     ` Running cc1 etc under valgrind (was Re: [PATCH 13/21] PR jit/63854: Add support for running "make check-jit" under valgrind) David Malcolm
2014-01-01  0:00       ` David Malcolm
2014-01-01  0:00 ` [PATCH 06/21] PR jit/63854: Fix leak of opts_obstack David Malcolm
2014-01-01  0:00   ` Richard Biener
2014-01-01  0:00 ` [PATCH 11/21] PR jit/63854: Fix leak of "avail" within tree-ssa-pre.c David Malcolm
2014-01-01  0:00   ` Richard Biener
2014-01-01  0:00 ` [PATCH 15/21] PR jit/63854: lra.c: Fix leak of point_freq_vec's buffer when calling lra_inheritance David Malcolm
2014-01-01  0:00   ` Jeff Law
2014-01-01  0:00 ` [PATCH 03/21] PR jit/63854: Fix memory leaks within context/pass_manager/dump_manager David Malcolm
2014-01-01  0:00   ` Jeff Law
2014-01-01  0:00 ` [PATCH 17/21] PR jit/63854: Fix leaking vec in jit David Malcolm
2014-01-01  0:00   ` Jeff Law
2014-01-01  0:00 ` [PATCH 16/21] PR jit/63854: Add all_late_ipa_passes to GCC_PASS_LISTS David Malcolm
2014-01-01  0:00   ` Richard Biener
2014-01-01  0:00 ` [PATCH 19/21] PR jit/63854: Fix leak of ipa hooks David Malcolm
2014-01-01  0:00   ` Jeff Law
2014-01-01  0:00     ` PING " David Malcolm
2014-01-01  0:00       ` Jan Hubicka
2014-01-01  0:00 ` [PATCH 05/21] PR jit/63854: Fix memory leak of save_decoded_options David Malcolm
2014-01-01  0:00   ` Richard Biener
2014-01-01  0:00 ` [PATCH 14/21] PR jit/63854: Fix leak of paths within jump threading David Malcolm
2014-01-01  0:00   ` Richard Biener
2014-01-01  0:00 ` [PATCH 09/21] PR jit/63854: Don't leak producer_string in dwarf2out.c David Malcolm
2014-01-01  0:00   ` Richard Biener
2014-01-01  0:00 ` David Malcolm [this message]
2014-01-01  0:00   ` [PATCH 04/21] PR jit/63854: Fix memory leak within bb-reorder.c Richard Biener
2014-01-01  0:00 ` [PATCH 08/21] PR jit/63854: Add ira_costs_c_finalize David Malcolm
2014-01-01  0:00   ` Richard Biener
2014-01-01  0:00 ` [PATCH 07/21] PR jit/63854: Fix leak of optimization_summary_obstack David Malcolm
2014-01-01  0:00   ` Richard Biener
2014-01-01  0:00 ` [PATCH 02/21] PR jit/63854: Fix memory leak of reginfo.c: valid_mode_changes_obstack David Malcolm
2014-01-01  0:00   ` Richard Biener

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