This is a backport of the fix for PR target/105930 from mainline to the
gcc12 release branch.  This patch has been retested against the gcc12
branch on x86_64-pc-linux-gnu with make bootstrap and make -k check,
both with and without --target_board=unix{-m32} with no new failures.
Ok for the gcc12 branch?


2022-07-09  Roger Sayle  <roger@nextmovesoftware.com>
            Uroš Bizjak  <ubizjak@gmail.com>

gcc/ChangeLog
        PR target/105930
        * config/i386/i386.md (*<any_or>di3_doubleword): Split after
        reload.  Use rtx_equal_p to avoid creating memory-to-memory moves,
        and emit NOTE_INSN_DELETED if operand[2] is zero (i.e. with -O0).


Thanks in advance,
Roger
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