@@ -2449,15 +2449,14 @@ emit_block_move_via_loop (rtx x, rtx y, rtx size,
}
emit_move_insn (iter, iter_init);
- scalar_int_mode int_move_mode
- = smallest_int_mode_for_size (incr * BITS_PER_UNIT);
- if (GET_MODE_BITSIZE (int_move_mode) != incr * BITS_PER_UNIT)
+ opt_scalar_int_mode int_move_mode
+ = int_mode_for_size (incr * BITS_PER_UNIT, 1);
+ if (!int_move_mode.exists (&move_mode)
+ || GET_MODE_BITSIZE (int_move_mode.require ()) != incr * BITS_PER_UNIT)
{
move_mode = BLKmode;
gcc_checking_assert (can_move_by_pieces (incr, align));
}
- else
- move_mode = int_move_mode;
x_addr = force_operand (XEXP (x, 0), NULL_RTX);
y_addr = force_operand (XEXP (y, 0), NULL_RTX);
@@ -2701,16 +2700,15 @@ emit_block_cmp_via_loop (rtx x, rtx y, rtx len, tree len_type, rtx target,
iter = gen_reg_rtx (iter_mode);
emit_move_insn (iter, iter_init);
- scalar_int_mode int_cmp_mode
- = smallest_int_mode_for_size (incr * BITS_PER_UNIT);
- if (GET_MODE_BITSIZE (int_cmp_mode) != incr * BITS_PER_UNIT
- || !can_compare_p (NE, int_cmp_mode, ccp_jump))
+ opt_scalar_int_mode int_cmp_mode
+ = int_mode_for_size (incr * BITS_PER_UNIT, 1);
+ if (!int_cmp_mode.exists (&cmp_mode)
+ || GET_MODE_BITSIZE (int_cmp_mode.require ()) != incr * BITS_PER_UNIT
+ || !can_compare_p (NE, cmp_mode, ccp_jump))
{
cmp_mode = BLKmode;
gcc_checking_assert (incr != 1);
}
- else
- cmp_mode = int_cmp_mode;
/* Save the base addresses. */
x_addr = force_operand (XEXP (x, 0), NULL_RTX);
new file mode 100644
@@ -0,0 +1,12 @@
+/* { dg-do compile } */
+/* { dg-options "-mavx512cd -finline-stringops" } */
+
+struct S {
+ int e;
+} __attribute__((aligned(128)));
+
+int main() {
+ struct S s1;
+ struct S s2;
+ int v = __builtin_memcmp(&s1, &s2, sizeof(s1));
+}