[Bug tree-optimization/99002] New: [11 Regression] memory leak in if-to-switch

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99002

            Bug ID: 99002
           Summary: [11 Regression] memory leak in if-to-switch
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org
  Target Milestone: ---

==1542== Memcheck, a memory error detector
==1542== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al.
==1542== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info
==1542== Command: ./cc1 -quiet -fdiagnostics-plain-output -O2 -fno-tree-vrp
-fdump-tree-dom2-details -o ssa-dom-thread-1.s
/home/rguenther/src/gcc3/gcc/testsuite/gcc.dg/tree-ssa/ssa-dom-thread-11.c
==1542==
==1542==
==1542== HEAP SUMMARY:
==1542==     in use at exit: 1,875,265 bytes in 2,696 blocks
==1542==   total heap usage: 16,329 allocs, 13,633 frees, 6,189,742 bytes
allocated
==1542==
==1542== 64 bytes in 1 blocks are definitely lost in loss record 151 of 682
==1542==    at 0x4C2E94F: operator new(unsigned long) (in
/usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
==1542==    by 0x24FFE0F: find_conditions(basic_block_def*,
hash_map<basic_block_def*, condition_info*,
simple_hashmap_traits<default_hash_traits<basic_block_def*>, condition_info*>
>*) (gimple-if-to-switch.cc:398)
==1542==    by 0x250044B: (anonymous
namespace)::pass_if_to_switch::execute(function*) (gimple-if-to-switch.cc:499)
==1542==    by 0x12E8130: execute_one_pass(opt_pass*) (passes.c:2572)
==1542==    by 0x12E8467: execute_pass_list_1(opt_pass*) (passes.c:2661)
==1542==    by 0x12E8498: execute_pass_list_1(opt_pass*) (passes.c:2662)
==1542==    by 0x12E84F0: execute_pass_list(function*, opt_pass*)
(passes.c:2672)
==1542==    by 0x12E6425: do_per_function_toporder(void (*)(function*, void*),
void*) (passes.c:1774)
==1542==    by 0x12E9120: execute_ipa_pass_list(opt_pass*) (passes.c:3006)
==1542==    by 0xCFC9D6: ipa_passes() (cgraphunit.c:2157)
==1542==    by 0xCFCE0C: symbol_table::compile() (cgraphunit.c:2292)
==1542==    by 0xCFD379: symbol_table::finalize_compilation_unit()
(cgraphunit.c:2540)
==1542==