On Wed, Jan 10, 2024 at 02:47:08PM -0600, Robert Dubner wrote:
> Here's the thing: when I run valgrind on the compilation -- not on the
> executable, but on the compiler with the COBOL front end -- I am getting a
> bunch of errors that look like variations of this:
>
> ==1232157== Command: /home/bob/repos/gcc-cobol/build/gcc/cobol1
> playpen.cbl -quiet -dumpbase
> playpen.cbl -mtune=generic -march=x86-64 -ggdb -O0 -o playpen.s -cmain
> ==1232157==
> ==1232157== Conditional jump or move depends on uninitialised value(s)
> ==1232157== at 0xABA0CB: sparseset_bit_p (sparseset.h:146)
> ==1232157== by 0xABA0CB: mark_pseudo_regno_live(int) (ira-lives.cc:326)
> ==1232157== by 0xABBDC0: process_bb_node_lives(ira_loop_tree_node*)
That is normal and not a bug.
If you want to avoid that, you need to configure the compiler with
--enable-valgrind-annotations
(and have valgrind development installed before you configure/build).
Jakub
