diff options
Diffstat (limited to 'gcc/flow.c')
| -rw-r--r-- | gcc/flow.c | 25 |
1 files changed, 3 insertions, 22 deletions
@@ -859,17 +859,6 @@ find_basic_blocks_1 (f) to a barrier or some such, no need to do it again. */ if (head != NULL_RTX) { - /* While we now have edge lists with which other portions of - the compiler might determine a call ending a basic block - does not imply an abnormal edge, it will be a bit before - everything can be updated. So continue to emit a noop at - the end of such a block. */ - if (GET_CODE (end) == CALL_INSN && ! SIBLING_CALL_P (end)) - { - rtx nop = gen_rtx_USE (VOIDmode, const0_rtx); - end = emit_insn_after (nop, end); - } - create_basic_block (i++, head, end, bb_note); bb_note = NULL_RTX; } @@ -911,17 +900,6 @@ find_basic_blocks_1 (f) jump already closed the basic block -- no need to do it again. */ if (head == NULL_RTX) break; - - /* While we now have edge lists with which other portions of the - compiler might determine a call ending a basic block does not - imply an abnormal edge, it will be a bit before everything can - be updated. So continue to emit a noop at the end of such a - block. */ - if (GET_CODE (end) == CALL_INSN && ! SIBLING_CALL_P (end)) - { - rtx nop = gen_rtx_USE (VOIDmode, const0_rtx); - end = emit_insn_after (nop, end); - } goto new_bb_exclusive; case CALL_INSN: @@ -3394,6 +3372,9 @@ outgoing_edges_match (bb1, bb2) else code2 = GET_CODE (cond2); + if (code2 == UNKNOWN) + return false; + /* See if we don have (cross) match in the codes and operands. */ match = ((code1 == code2 && rtx_renumbered_equal_p (XEXP (cond1, 0), XEXP (cond2, 0)) |