make sure we don't use a stack adjust.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@20985
138bc75d-0d04-0410-961f-
82ee72b054a4
Mon Jul 6 22:47:55 1998 J"orn Rennecke <amylaar@cygnus.co.uk>
+ * reload.c (find_equiv_reg): When looking for stack pointer + const,
+ make sure we don't use a stack adjust.
+
* reload.c (find_equiv_reg): If need_stable_sp is set,
check if stack pointer is changed directly.
&& (valueno = true_regnum (valtry = SET_SRC (pat))) >= 0)
||
(goal_const && rtx_equal_p (SET_SRC (pat), goal)
+ /* When looking for stack pointer + const,
+ make sure we don't use a stack adjust. */
+ && !reg_overlap_mentioned_for_reload_p (SET_DEST (pat), goal)
&& (valueno = true_regnum (valtry = SET_DEST (pat))) >= 0)
|| (goal_mem
&& (valueno = true_regnum (valtry = SET_DEST (pat))) >= 0