https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106460

--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jiu Fu Guo <guoji...@gcc.gnu.org>:

https://gcc.gnu.org/g:978ec4825c2e5cb0ec03d857ea038440d566ff42

commit r13-3499-g978ec4825c2e5cb0ec03d857ea038440d566ff42
Author: Jiufu Guo <guoji...@linux.ibm.com>
Date:   Tue Jul 19 18:30:58 2022 +0800

    rs6000: cannot_force_const_mem for HIGH code rtx[PR106460]

    As the issue in PR106460, a rtx 'high:DI (symbol_ref:DI ("var_48")' is
tried
    to store into constant pool and ICE occur.  But actually, this rtx
represents
    partial incomplete address and can not be put into a .rodata section.

    This patch updates rs6000_cannot_force_const_mem to return true for rtx(s)
with
    HIGH code, because these rtx(s) indicate part of address and are not ok for
    constant pool.

    Below are some examples:
    (high:DI (const:DI (plus:DI (symbol_ref:DI ("xx") (const_int 12 [0xc])))))
    (high:DI (symbol_ref:DI ("var_1")..)))

            PR target/106460

    gcc/ChangeLog:

            * config/rs6000/rs6000.cc (rs6000_cannot_force_const_mem): Return
true
            for HIGH code rtx.

    gcc/testsuite/ChangeLog:

            * gcc.target/powerpc/pr106460.c: New test.

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