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Diffstat (limited to 'gcc/ifcvt.c')
| -rw-r--r-- | gcc/ifcvt.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/ifcvt.c b/gcc/ifcvt.c index e4e13ab..79e2738 100644 --- a/gcc/ifcvt.c +++ b/gcc/ifcvt.c @@ -3927,6 +3927,11 @@ find_if_case_2 (basic_block test_bb, edge then_edge, edge else_edge) edge else_succ; int then_prob, else_prob; + /* We do not want to speculate (empty) loop latches. */ + if (current_loops + && else_bb->loop_father->latch == else_bb) + return FALSE; + /* If we are partitioning hot/cold basic blocks, we don't want to mess up unconditional or indirect jumps that cross between hot and cold sections. |