This patch fixes two bugs that were discovered during development.
The first fix avoids hoisting of 2nd if-region (which contains an early
return) above the intervening code 'loop' to be if-merged with the 1st
if-region.
The second fix corrects a wrong usage of loop index.
if (a) {
...
}
loop; // no dependency on both if-regions.
...
if (a) {
if (b)
return;
}
-Mei
Index: be/opt/opt_proactive.cxx
===================================================================
--- be/opt/opt_proactive.cxx (revision 1419)
+++ be/opt/opt_proactive.cxx (working copy)
@@ -3357,6 +3357,9 @@
return FALSE;
else if (_action == DO_IFFLIP)
return FALSE;
+ // Make sure sc1 and sc2 are control equivalent if they are not adjacent
to each other.
+ else if ((count > 0) && !sc1->Is_ctrl_equiv(sc2))
+ return FALSE;
else
return TRUE;
}
Index: be/com/cxx_template.h
===================================================================
--- be/com/cxx_template.h (revision 1418)
+++ be/com/cxx_template.h (working copy)
@@ -227,7 +227,7 @@
{
if (idx < _lastidx) {
for (int iter = idx; iter < _lastidx; iter++) {
- _array[idx] = _array[idx+1];
+ _array[iter] = _array[iter+1];
}
_array[_lastidx] = NULL;
Decidx();
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