[gcc r12-1418] evrp: fix AddressSanitizer: alloc-dealloc-mismatch

[gcc r12-1418] evrp: fix AddressSanitizer: alloc-dealloc-mismatch

[Martin Liska]

https://gcc.gnu.org/g:44b1502070d770927e001c570ed3c636e7303248

commit r12-1418-g44b1502070d770927e001c570ed3c636e7303248
Author: Martin Liska <mliska@suse.cz>
Date:   Mon Jun 14 10:22:36 2021 +0200

    evrp: fix AddressSanitizer: alloc-dealloc-mismatch
    
    The fixed error is:
    
    ==21166==ERROR: AddressSanitizer: alloc-dealloc-mismatch (operator new [] vs operator delete) on 0x60300000d900
        #0 0x7367d7 in operator delete(void*, unsigned long) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/libsanitizer/asan/asan_new_delete.cpp:172
        #1 0x3b82e6e in pointer_equiv_analyzer::~pointer_equiv_analyzer() /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/gimple-ssa-evrp.c:161
        #2 0x3b83387 in hybrid_folder::~hybrid_folder() /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/gimple-ssa-evrp.c:517
        #3 0x3b83387 in execute_early_vrp /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/gimple-ssa-evrp.c:686
        #4 0x1790611 in execute_one_pass(opt_pass*) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/passes.c:2567
        #5 0x1792003 in execute_pass_list_1 /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/passes.c:2656
        #6 0x1792029 in execute_pass_list_1 /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/passes.c:2657
        #7 0x179209f in execute_pass_list(function*, opt_pass*) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/passes.c:2667
        #8 0x178a5f3 in do_per_function_toporder(void (*)(function*, void*), void*) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/passes.c:1773
        #9 0x1792fac in do_per_function_toporder(void (*)(function*, void*), void*) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/plugin.h:191
        #10 0x1792fac in execute_ipa_pass_list(opt_pass*) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/passes.c:3001
        #11 0xc525fc in ipa_passes /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/cgraphunit.c:2154
        #12 0xc525fc in symbol_table::compile() /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/cgraphunit.c:2289
        #13 0xc5a096 in symbol_table::compile() /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/cgraphunit.c:2269
        #14 0xc5a096 in symbol_table::finalize_compilation_unit() /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/cgraphunit.c:2537
        #15 0x1a7a17c in compile_file /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/toplev.c:482
        #16 0x69c758 in do_compile /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/toplev.c:2210
        #17 0x69c758 in toplev::main(int, char**) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/toplev.c:2349
        #18 0x6a932a in main /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/main.c:39
        #19 0x7ffff7820b34 in __libc_start_main ../csu/libc-start.c:332
        #20 0x6aa5fd in _start (/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/objdir/gcc/cc1+0x6aa5fd)
    
    0x60300000d900 is located 0 bytes inside of 32-byte region [0x60300000d900,0x60300000d920)
    allocated by thread T0 here:
        #0 0x735ab7 in operator new[](unsigned long) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/libsanitizer/asan/asan_new_delete.cpp:102
        #1 0x3b82dac in pointer_equiv_analyzer::pointer_equiv_analyzer(gimple_ranger*) /home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-asan/build/gcc/gimple-ssa-evrp.c:156
    
    gcc/ChangeLog:
    
            * gimple-ssa-evrp.c (pointer_equiv_analyzer::~pointer_equiv_analyzer): Use delete[].

Diff:
---
 gcc/gimple-ssa-evrp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/gimple-ssa-evrp.c b/gcc/gimple-ssa-evrp.c
index eb8320ae9d8..61de5013d6d 100644
--- a/gcc/gimple-ssa-evrp.c
+++ b/gcc/gimple-ssa-evrp.c
@@ -158,7 +158,7 @@ pointer_equiv_analyzer::pointer_equiv_analyzer (gimple_ranger *r)
 
 pointer_equiv_analyzer::~pointer_equiv_analyzer ()
 {
-  delete m_global_points;
+  delete[] m_global_points;
 }
 
 // Set the global pointer equivalency for SSA to POINTEE.