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condexec merge part 7
- To: gcc-patches at gcc dot gnu dot org
- Subject: condexec merge part 7
- From: Richard Henderson <rth at cygnus dot com>
- Date: Wed, 26 Apr 2000 23:48:11 -0700
So I can use the function to clean up fallthru from
conditional branches as well.
r~
* flow.c (tidy_fallthru_edge): Don't delete the jump when it's
a still-valid conditional jump.
Index: flow.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/flow.c,v
retrieving revision 1.262
diff -c -p -d -r1.262 flow.c
*** flow.c 2000/04/27 05:58:04 1.262
--- flow.c 2000/04/27 06:45:36
*************** tidy_fallthru_edge (e, b, c)
*** 2407,2413 ****
If block B consisted only of this single jump, turn it into a deleted
note. */
q = b->end;
! if (GET_CODE (q) == JUMP_INSN)
{
#ifdef HAVE_cc0
/* If this was a conditional jump, we need to also delete
--- 2407,2415 ----
If block B consisted only of this single jump, turn it into a deleted
note. */
q = b->end;
! if (GET_CODE (q) == JUMP_INSN
! && (simplejump_p (q)
! || (b->succ == e && e->succ_next == NULL)))
{
#ifdef HAVE_cc0
/* If this was a conditional jump, we need to also delete