diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/genrecog.c | 14 |
2 files changed, 17 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 15904fa..f29d3b9 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2000-10-17 Alexandre Oliva <aoliva@redhat.com> + + * genrecog.c (write_switch): Return the first condition that needs a + label. + 2000-10-17 Bernd Schmidt <bernds@redhat.co.uk> * c-tree.h (warn_sequence_point): Move declaration to... diff --git a/gcc/genrecog.c b/gcc/genrecog.c index b512181..d143798 100644 --- a/gcc/genrecog.c +++ b/gcc/genrecog.c @@ -1650,6 +1650,7 @@ write_switch (start, depth) { struct decision *p = start; enum decision_type type = p->tests->type; + struct decision *needs_label = NULL; /* If we have two or more nodes in sequence that test the same one thing, we may be able to use a switch statement. */ @@ -1674,6 +1675,9 @@ write_switch (start, depth) code = p->tests->u.code; do { + if (p != start && p->need_label && needs_label == NULL) + needs_label = p; + printf (" case "); print_code (code); printf (":\n goto L%d;\n", p->success.first->number); @@ -1697,7 +1701,10 @@ write_switch (start, depth) we don't actually write the test here, as it gets kinda messy. It is trivial to leave this to later by telling our caller that we only processed the CODE tests. */ - ret = p; + if (needs_label != NULL) + ret = needs_label; + else + ret = p; while (p && p->tests->type == DT_pred && p->tests->u.pred.index >= 0) @@ -1774,6 +1781,9 @@ write_switch (start, depth) do { + if (p != start && p->need_label && needs_label == NULL) + needs_label = p; + printf (" case "); switch (type) { @@ -1800,7 +1810,7 @@ write_switch (start, depth) printf (" default:\n break;\n }\n"); - return p; + return needs_label != NULL ? needs_label : p; } else { |