[Bug target/97535] [9/10 Regression] On AArch64 memcpy expansion cannot handle length > 32-bit signed int max
cvs-commit at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Tue Nov 17 12:53:53 GMT 2020
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97535
--- Comment #16 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-8 branch has been updated by Tamar Christina
<tnfchris@gcc.gnu.org>:
https://gcc.gnu.org/g:ff3bb57646fb49090ce84b05bda5003b8f33fc07
commit r8-10626-gff3bb57646fb49090ce84b05bda5003b8f33fc07
Author: Tamar Christina <tamar.christina@arm.com>
Date: Tue Nov 17 12:53:08 2020 +0000
AArch64: Fix overflow in memcopy expansion on aarch64.
This a partial backport for 0f801e0b6cc9f67c9a8983127e23161f6025c5b6 which
fixes
a truncation error for the inline memcopy on AArch64 on GCC-8.
gcc/ChangeLog:
PR target/97535
* config/aarch64/aarch64.c (aarch64_expand_movme): Use
unsigned HOST_WIDE_INT.
gcc/testsuite/ChangeLog:
PR target/97535
* gcc.target/aarch64/pr97535.c: New test.
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