From b3775b5e4e150439276ad3d34f1bb564b28e8ef5 Mon Sep 17 00:00:00 2001
From: Alon Zakai <azakai@google.com>
Date: Fri, 6 Oct 2023 16:41:13 -0700
Subject: Automatically discard global effects in the rare passes that add
 effects (#5999)

All logging/instrumentation passes need to do this, to avoid us using stale
global effects that are too low (too high is not optimal either, but at least it
cannot cause bugs).
---
 src/passes/SpillPointers.cpp | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/passes/SpillPointers.cpp')

diff --git a/src/passes/SpillPointers.cpp b/src/passes/SpillPointers.cpp
index f496b8c79..3af7039cd 100644
--- a/src/passes/SpillPointers.cpp
+++ b/src/passes/SpillPointers.cpp
@@ -37,6 +37,9 @@ struct SpillPointers
   : public WalkerPass<LivenessWalker<SpillPointers, Visitor<SpillPointers>>> {
   bool isFunctionParallel() override { return true; }
 
+  // Adds writes to memory.
+  bool addsEffects() override { return true; }
+
   std::unique_ptr<Pass> create() override {
     return std::make_unique<SpillPointers>();
   }
-- 
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