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-rw-r--r--src/passes/SimplifyGlobals.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/passes/SimplifyGlobals.cpp b/src/passes/SimplifyGlobals.cpp
index 243e9a0d6..b57490d3c 100644
--- a/src/passes/SimplifyGlobals.cpp
+++ b/src/passes/SimplifyGlobals.cpp
@@ -24,6 +24,7 @@
// * Apply the constant values of immutable globals.
// * Apply the constant values of previous global.sets, in a linear
// execution trace.
+// * Remove writes to globals that are never read from.
//
// Some globals may not have uses after these changes, which we leave
// to other passes to optimize.