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| author | Richard Henderson <rth@cygnus.com> | 2000-05-19 13:07:18 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2000-05-19 13:07:18 -0700 |
| commit | b6cfd26443d6161c71b6069346cbe805f86774a4 (patch) | |
| tree | 1279ef32590b83c555c5adb2aa805a92077c8cd9 | |
| parent | 228c4d97ec5e44fcb923349fd1a76da0e83821a7 (diff) | |
| download | gcc-b6cfd26443d6161c71b6069346cbe805f86774a4.zip gcc-b6cfd26443d6161c71b6069346cbe805f86774a4.tar.gz gcc-b6cfd26443d6161c71b6069346cbe805f86774a4.tar.bz2 | |
* ifcvt.c (find_if_case_2): Don't allow THEN to be EXIT.
From-SVN: r34036
| -rw-r--r-- | gcc/ChangeLog | 2 | ||||
| -rw-r--r-- | gcc/ifcvt.c | 9 |
2 files changed, 8 insertions, 3 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index c8c6c95..5e4fc88 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,7 @@ 2000-05-19 Richard Henderson <rth@cygnus.com> + * ifcvt.c (find_if_case_2): Don't allow THEN to be EXIT. + * flow.c (make_edges): The sibling call edge to exit is abnormal. 2000-05-19 Richard Henderson <rth@cygnus.com> diff --git a/gcc/ifcvt.c b/gcc/ifcvt.c index 2403651..371e560 100644 --- a/gcc/ifcvt.c +++ b/gcc/ifcvt.c @@ -1652,14 +1652,17 @@ find_if_case_2 (test_bb, then_edge, else_edge) if (else_bb->pred->pred_next != NULL) return FALSE; + /* THEN is not EXIT. */ + if (then_bb->index < 0) + return FALSE; + /* ELSE is predicted or SUCC(ELSE) postdominates THEN. */ note = find_reg_note (test_bb->end, REG_BR_PROB, NULL_RTX); if (note && INTVAL (XEXP (note, 0)) >= REG_BR_PROB_BASE / 2) ; else if (else_succ->dest->index < 0 - || (then_bb->index >= 0 - && TEST_BIT (post_dominators[ORIG_INDEX (then_bb)], - ORIG_INDEX (else_succ->dest)))) + || TEST_BIT (post_dominators[ORIG_INDEX (then_bb)], + ORIG_INDEX (else_succ->dest))) ; else return FALSE; |