Initiate a constant propagation pass in the optimizing compiler.
- Perform constant folding on int and long additions and subtractions in
the optimizing compiler.
- Apply constant folding to conditions and comparisons.
Change-Id: Ic88783a3c975fda777c74c531e257fa777be42eb
diff --git a/compiler/optimizing/nodes.cc b/compiler/optimizing/nodes.cc
index 7b5a78e..8282795 100644
--- a/compiler/optimizing/nodes.cc
+++ b/compiler/optimizing/nodes.cc
@@ -505,6 +505,18 @@
}
}
+HConstant* HBinaryOperation::TryStaticEvaluation(ArenaAllocator* allocator) const {
+ if (GetLeft()->IsIntConstant() && GetRight()->IsIntConstant()) {
+ int32_t value = Evaluate(GetLeft()->AsIntConstant()->GetValue(),
+ GetRight()->AsIntConstant()->GetValue());
+ return new(allocator) HIntConstant(value);
+ } else if (GetLeft()->IsLongConstant() && GetRight()->IsLongConstant()) {
+ int64_t value = Evaluate(GetLeft()->AsLongConstant()->GetValue(),
+ GetRight()->AsLongConstant()->GetValue());
+ return new(allocator) HLongConstant(value);
+ }
+ return nullptr;
+}
bool HCondition::NeedsMaterialization() const {
if (!HasOnlyOneUse()) {