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| author | Zdenek Dvorak <dvorakz@suse.cz> | 2006-11-22 00:12:52 +0000 |
|---|---|---|
| committer | Zdenek Dvorak <dvorakz@suse.cz> | 2006-11-22 00:12:52 +0000 |
| commit | 9e09922e3d11b2986181a9acbd81da17678e1c46 (patch) | |
| tree | c758a5e110c013484ee186033b5a0b2cbd95d424 /gcc/loop-doloop.c | |
| parent | 5905b03314cce00ff08b42472ec45b7f46d8cabf (diff) | |
PR rtl-optimization/29924
* loop-unroll.c (split_edge_and_insert): Handle the case insns is NULL.
(unroll_loop_runtime_iterations): Assert that the argument passed to
split_edge_and_insert is not NULL.
* loop-doloop.c (add_test): Ditto.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@119078 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/loop-doloop.c')
| -rw-r--r-- | gcc/loop-doloop.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/loop-doloop.c b/gcc/loop-doloop.c index afe65cb7d28..004dcfe72f8 100644 --- a/gcc/loop-doloop.c +++ b/gcc/loop-doloop.c @@ -248,7 +248,7 @@ add_test (rtx cond, edge *e, basic_block dest) do_compare_rtx_and_jump (op0, op1, code, 0, mode, NULL_RTX, NULL_RTX, label); jump = get_last_insn (); - if (!JUMP_P (jump)) + if (!jump || !JUMP_P (jump)) { /* The condition is always false and the jump was optimized out. */ end_sequence (); @@ -257,6 +257,10 @@ add_test (rtx cond, edge *e, basic_block dest) seq = get_insns (); end_sequence (); + + /* There always is at least the jump insn in the sequence. */ + gcc_assert (seq != NULL_RTX); + bb = split_edge_and_insert (*e, seq); *e = single_succ_edge (bb); |