Add a little tiny comment to AccessEnforcementSelection.

atrick · atrick · commit ac56f91f4789 · 2017-07-05T14:10:05.000-07:00
diff --git a/lib/SILOptimizer/Mandatory/AccessEnforcementSelection.cpp b/lib/SILOptimizer/Mandatory/AccessEnforcementSelection.cpp
@@ -236,7 +236,8 @@ void SelectEnforcement::analyzeUsesOfBox(SILInstruction *source) {
         isa<DeallocBoxInst>(user))
       continue;
 
-    // Treat everything else as an escape:
+    // Treat everything else as an escape.
+    // A Box typically escapes via copy_value.
     noteEscapingUse(user);
   }
   // Accesses may still be empty if the user of the Box is a partial apply

Original file line number	Diff line number	Diff line change
`@@ -236,7 +236,8 @@ void SelectEnforcement::analyzeUsesOfBox(SILInstruction *source) {`
`236`	`236`	`isa<DeallocBoxInst>(user))`
`237`	`237`	`continue;`
`238`	`238`
`239`		`- // Treat everything else as an escape:`
	`239`	`+ // Treat everything else as an escape.`
	`240`	`+ // A Box typically escapes via copy_value.`
`240`	`241`	`noteEscapingUse(user);`
`241`	`242`	`}`
`242`	`243`	`// Accesses may still be empty if the user of the Box is a partial apply`