diff options
Diffstat (limited to 'gcc/resource.c')
| -rw-r--r-- | gcc/resource.c | 24 |
1 files changed, 3 insertions, 21 deletions
diff --git a/gcc/resource.c b/gcc/resource.c index c66b6e3..bf2d6be 100644 --- a/gcc/resource.c +++ b/gcc/resource.c @@ -109,11 +109,6 @@ update_live_status (rtx dest, const_rtx x, void *data ATTRIBUTE_UNUSED) if (GET_CODE (x) == CLOBBER) for (i = first_regno; i < last_regno; i++) CLEAR_HARD_REG_BIT (current_live_regs, i); - else if (GET_CODE (x) == CLOBBER_HIGH) - /* No current target supports both branch delay slots and CLOBBER_HIGH. - We'd need more elaborate liveness tracking to handle that - combination. */ - gcc_unreachable (); else for (i = first_regno; i < last_regno; i++) { @@ -299,7 +294,6 @@ mark_referenced_resources (rtx x, struct resources *res, return; case CLOBBER: - case CLOBBER_HIGH: return; case CALL_INSN: @@ -670,15 +664,9 @@ mark_set_resources (rtx x, struct resources *res, int in_dest, for (link = CALL_INSN_FUNCTION_USAGE (call_insn); link; link = XEXP (link, 1)) - { - /* We could support CLOBBER_HIGH and treat it in the same way as - HARD_REGNO_CALL_PART_CLOBBERED, but no port needs that - yet. */ - gcc_assert (GET_CODE (XEXP (link, 0)) != CLOBBER_HIGH); - if (GET_CODE (XEXP (link, 0)) == CLOBBER) - mark_set_resources (SET_DEST (XEXP (link, 0)), res, 1, - MARK_SRC_DEST); - } + if (GET_CODE (XEXP (link, 0)) == CLOBBER) + mark_set_resources (SET_DEST (XEXP (link, 0)), res, 1, + MARK_SRC_DEST); /* Check for a REG_SETJMP. If it exists, then we must assume that this call can clobber any register. */ @@ -721,12 +709,6 @@ mark_set_resources (rtx x, struct resources *res, int in_dest, mark_set_resources (XEXP (x, 0), res, 1, MARK_SRC_DEST); return; - case CLOBBER_HIGH: - /* No current target supports both branch delay slots and CLOBBER_HIGH. - We'd need more elaborate liveness tracking to handle that - combination. */ - gcc_unreachable (); - case SEQUENCE: { rtx_sequence *seq = as_a <rtx_sequence *> (x); |