From: Andrew Pinski <apin...@marvell.com>
The problem here is with -mstrict-align, aarch64_expand_setmem needs
to check the alginment of the mode to make sure we can use it for
doing the stores.
gcc/ChangeLog:
PR target/103100
* config/aarch64/aarch64.c (aarch64_expand_setmem):
Add check for alignment of the mode if STRICT_ALIGNMENT is true.
---
gcc/config/aarch64/aarch64.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/gcc/config/aarch64/aarch64.c b/gcc/config/aarch64/aarch64.c
index fdf05505846..2c00583e12c 100644
--- a/gcc/config/aarch64/aarch64.c
+++ b/gcc/config/aarch64/aarch64.c
@@ -23738,7 +23738,9 @@ aarch64_expand_setmem (rtx *operands)
over writing. */
opt_scalar_int_mode mode_iter;
FOR_EACH_MODE_IN_CLASS (mode_iter, MODE_INT)
- if (GET_MODE_BITSIZE (mode_iter.require ()) <= MIN (n, copy_limit))
+ if (GET_MODE_BITSIZE (mode_iter.require ()) <= MIN (n, copy_limit)
+ && (!STRICT_ALIGNMENT
+ || MEM_ALIGN (dst) >= GET_MODE_ALIGNMENT (mode_iter.require
())))
cur_mode = mode_iter.require ();
gcc_assert (cur_mode != BLKmode);
--
2.17.1
