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-rw-r--r--src/qml/compiler/qv4ssa.cpp15
1 files changed, 6 insertions, 9 deletions
diff --git a/src/qml/compiler/qv4ssa.cpp b/src/qml/compiler/qv4ssa.cpp
index f021e1f760..fdda69e167 100644
--- a/src/qml/compiler/qv4ssa.cpp
+++ b/src/qml/compiler/qv4ssa.cpp
@@ -1857,11 +1857,6 @@ public:
return *this;
}
- bool isEmpty() const
- {
- return worklistSize == 0;
- }
-
unsigned size() const
{
return worklistSize;
@@ -1869,7 +1864,7 @@ public:
Stmt *takeNext(Stmt *last)
{
- if (isEmpty())
+ if (worklistSize == 0)
return 0;
const int startAt = last ? last->id() + 1 : 0;
@@ -1885,6 +1880,10 @@ public:
--worklistSize;
Stmt *s = stmts.at(pos);
Q_ASSERT(s);
+
+ if (removed.at(s->id()))
+ return takeNext(s);
+
return s;
}
@@ -3857,9 +3856,7 @@ void optimizeSSA(StatementWorklist &W, DefUses &defUses, DominatorTree &df)
ExprReplacer replaceUses(defUses, function);
Stmt *s = 0;
- while (!W.isEmpty()) {
- s = W.takeNext(s);
- Q_ASSERT(s);
+ while ((s = W.takeNext(s))) {
if (Phi *phi = s->asPhi()) {
// dead code elimination: