diff options
Diffstat (limited to 'gcc/var-tracking.c')
| -rw-r--r-- | gcc/var-tracking.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/gcc/var-tracking.c b/gcc/var-tracking.c index 7e6bee3..65116c2 100644 --- a/gcc/var-tracking.c +++ b/gcc/var-tracking.c @@ -5769,6 +5769,11 @@ add_stores (rtx loc, const_rtx expr, void *cuip) resolve = preserve = !cselib_preserved_value_p (v); + if (loc == stack_pointer_rtx + && hard_frame_pointer_adjustment != -1 + && preserve) + cselib_set_value_sp_based (v); + nloc = replace_expr_with_values (oloc); if (nloc) oloc = nloc; @@ -9867,6 +9872,19 @@ vt_initialize (void) { vt_init_cfa_base (); hard_frame_pointer_adjustment = fp_cfa_offset; + /* Disassociate sp from fp now. */ + if (MAY_HAVE_DEBUG_INSNS) + { + cselib_val *v; + cselib_invalidate_rtx (stack_pointer_rtx); + v = cselib_lookup (stack_pointer_rtx, Pmode, 1, + VOIDmode); + if (v && !cselib_preserved_value_p (v)) + { + cselib_set_value_sp_based (v); + preserve_value (v); + } + } } } } |