[Bug target/113572] [14 Regression] aarch64: internal compiler error in aarch64_sve::vector_cst_all_same

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113572

--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The trunk branch has been updated by Richard Sandiford <rsand...@gcc.gnu.org>:

https://gcc.gnu.org/g:c3de14ba1ba0e77254118af64ed881f115ee42a0

commit r14-8422-gc3de14ba1ba0e77254118af64ed881f115ee42a0
Author: Richard Sandiford <richard.sandif...@arm.com>
Date:   Thu Jan 25 12:03:18 2024 +0000

    aarch64: Fix out-of-bounds ENCODED_ELT access [PR113572]

    When generalising vector_cst_all_same, I'd forgotten to update
    VECTOR_CST_ENCODED_ELT to VECTOR_CST_ELT.  The check deliberately
    looks at implicitly encoded elements in some cases.

    gcc/
            PR target/113572
            * config/aarch64/aarch64-sve-builtins.cc (vector_cst_all_same):
            Check VECTOR_CST_ELT instead of VECTOR_CST_ENCODED_ELT

    gcc/testsuite/
            PR target/113572
            * gcc.target/aarch64/sve/pr113572.c: New test.