[XLA] Add hash function to HloUse/HloPosition.
PiperOrigin-RevId: 323944629
Change-Id: Ib66d374aea015fad3fbed063ed580034599afb18
diff --git a/tensorflow/compiler/xla/service/hlo_value.h b/tensorflow/compiler/xla/service/hlo_value.h
index a1150ae..a721aab 100644
--- a/tensorflow/compiler/xla/service/hlo_value.h
+++ b/tensorflow/compiler/xla/service/hlo_value.h
@@ -57,6 +57,11 @@
(instruction->unique_id() == other.instruction->unique_id() &&
index < other.index);
}
+
+ template <typename H>
+ friend H AbslHashValue(H h, const HloPosition& pos) {
+ return H::combine(std::move(h), pos.instruction->Hash(), pos.index);
+ }
};
std::ostream& operator<<(std::ostream& out, const HloPosition& position);
@@ -81,6 +86,12 @@
}
bool operator!=(const HloUse& other) const { return !(*this == other); }
+
+ template <typename H>
+ friend H AbslHashValue(H h, const HloUse& use) {
+ return H::combine(std::move(h), use.instruction, use.operand_index,
+ use.operand_number);
+ }
};
std::ostream& operator<<(std::ostream& out, const HloUse& use);
@@ -240,7 +251,8 @@
// hold multiple HloValueSets.
class InstructionValueSet : public ShapeTree<HloValueSet> {
public:
- InstructionValueSet(const Shape& shape) : ShapeTree<HloValueSet>(shape) {}
+ explicit InstructionValueSet(const Shape& shape)
+ : ShapeTree<HloValueSet>(shape) {}
// Sets this value set to the union of the given value sets. Returns whether
// this value set changed.
