On 08/02/2018 07:14 PM, David Malcolm wrote:
> "make selftest-valgrind" shows:
>
> 187 bytes in 1 blocks are definitely lost in loss record 567 of 669
> at 0x4A081D4: calloc (in
> /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
> by 0x1F08260: xcalloc (xmalloc.c:162)
> by 0xB24F32: init_emit() (emit-rtl.c:5843)
> by 0xC10080: prepare_function_start() (function.c:4803)
> by 0xC10254: init_function_start(tree_node*) (function.c:4877)
> by 0x1CDF92A: selftest::test_expansion_to_rtl() (function-tests.c:595)
> by 0x1CE007C: selftest::function_tests_c_tests() (function-tests.c:676)
> by 0x1E010E7: selftest::run_tests() (selftest-run-tests.c:98)
> by 0x1062D1E: toplev::run_self_tests() (toplev.c:2225)
> by 0x1062F40: toplev::main(int, char**) (toplev.c:2303)
> by 0x1E5B90A: main (main.c:39)
>
> The allocation in question is:
>
> crtl->emit.regno_pointer_align
> = XCNEWVEC (unsigned char, crtl->emit.regno_pointer_align_length);
>
> This patch fixes this leak (and makes the output of
> "make selftest-valgrind" clean) by calling free_after_compilation at the
> end of the selftest in question.
>
> Successfully bootstrapped & regrtested on x86_64-pc-linux-gnu.
>
> OK for trunk?
>
> gcc/ChangeLog:
> * function-tests.c (selftest::test_expansion_to_rtl): Call
> free_after_compilation.
OK.
jeff
