From ea0ce326fd12178b1797b7f3e3b2a204d22d0ab7 Mon Sep 17 00:00:00 2001
From: Lang Hames <lhames@gmail.com>
Date: Tue, 8 Feb 2022 16:10:10 +1100
Subject: [PATCH] [ORC-RT] Make ExecutorAddr hashable.

This will be used in an upcoming macho_platform patch.
---
 compiler-rt/lib/orc/executor_address.h                | 11 +++++++++++
 .../lib/orc/unittests/executor_address_test.cpp       |  7 +++++++
 2 files changed, 18 insertions(+)

diff --git a/compiler-rt/lib/orc/executor_address.h b/compiler-rt/lib/orc/executor_address.h
index 79ad9b7f1409..f8f417cb636d 100644
--- a/compiler-rt/lib/orc/executor_address.h
+++ b/compiler-rt/lib/orc/executor_address.h
@@ -212,4 +212,15 @@ using SPSExecutorAddrRangeSequence = SPSSequence<SPSExecutorAddrRange>;
 
 } // End namespace __orc_rt
 
+namespace std {
+
+// Make ExecutorAddr hashable.
+template <> struct hash<__orc_rt::ExecutorAddr> {
+  size_t operator()(const __orc_rt::ExecutorAddr &A) const {
+    return hash<uint64_t>()(A.getValue());
+  }
+};
+
+} // namespace std
+
 #endif // ORC_RT_EXECUTOR_ADDRESS_H
diff --git a/compiler-rt/lib/orc/unittests/executor_address_test.cpp b/compiler-rt/lib/orc/unittests/executor_address_test.cpp
index 19a794ab6e18..7712ef9a773f 100644
--- a/compiler-rt/lib/orc/unittests/executor_address_test.cpp
+++ b/compiler-rt/lib/orc/unittests/executor_address_test.cpp
@@ -75,3 +75,10 @@ TEST(ExecutorAddrTest, AddrRanges) {
   EXPECT_TRUE(R1.overlaps(R3));
   EXPECT_TRUE(R1.overlaps(R4));
 }
+
+TEST(ExecutorAddrTest, Hashable) {
+  uint64_t RawAddr = 0x1234567890ABCDEF;
+  ExecutorAddr Addr(RawAddr);
+
+  EXPECT_EQ(std::hash<uint64_t>()(RawAddr), std::hash<ExecutorAddr>()(Addr));
+}