Set side effects to HNullCheck and HBoundsCheck.

Both can trigger GC, as they will call NullPointerException or
IndexOutOfBoundsException constructors.

bug:26532563
Change-Id: Id9e42f0450caaaf365630989e1b36e98add46c89

1 files changed, 6 insertions, 2 deletions

diff --git a/compiler/optimizing/nodes.h b/compiler/optimizing/nodes.h
index 9a7dfd8abf..35944ec1ce 100644
--- a/compiler/optimizing/nodes.h
+++ b/compiler/optimizing/nodes.h
@@ -4530,8 +4530,10 @@ class HPhi : public HInstruction {
 
 class HNullCheck : public HExpression<1> {
  public:
+  // `HNullCheck` can trigger GC, as it may call the `NullPointerException`
+  // constructor.
   HNullCheck(HInstruction* value, uint32_t dex_pc)
-      : HExpression(value->GetType(), SideEffects::None(), dex_pc) {
+      : HExpression(value->GetType(), SideEffects::CanTriggerGC(), dex_pc) {
     SetRawInputAt(0, value);
   }
 
@@ -4852,8 +4854,10 @@ class HArrayLength : public HExpression<1> {
 
 class HBoundsCheck : public HExpression<2> {
  public:
+  // `HBoundsCheck` can trigger GC, as it may call the `IndexOutOfBoundsException`
+  // constructor.
   HBoundsCheck(HInstruction* index, HInstruction* length, uint32_t dex_pc)
-      : HExpression(index->GetType(), SideEffects::None(), dex_pc) {
+      : HExpression(index->GetType(), SideEffects::CanTriggerGC(), dex_pc) {
     DCHECK(index->GetType() == Primitive::kPrimInt);
     SetRawInputAt(0, index);
     SetRawInputAt(1, length);