[SCEV] Add a clarifying comment around ExitLimit construction

preames · preames · commit 4d18b4a7c4fd · 2019-10-25T10:33:02.000-07:00
diff --git a/llvm/include/llvm/Analysis/ScalarEvolution.h b/llvm/include/llvm/Analysis/ScalarEvolution.h
@@ -1213,6 +1213,9 @@ class ScalarEvolution {
       Predicates.insert(P);
     }
 
+    /// Construct either an exact exit limit from a constant, or an unknown
+    /// one from a SCEVCouldNotCompute.  No other types of SCEVs are allowed
+    /// as arguments and asserts enforce that internally.
     /*implicit*/ ExitLimit(const SCEV *E);
 
     ExitLimit(

Original file line number	Diff line number	Diff line change
`@@ -1213,6 +1213,9 @@ class ScalarEvolution {`
`1213`	`1213`	`Predicates.insert(P);`
`1214`	`1214`	`}`
`1215`	`1215`
	`1216`	`+ /// Construct either an exact exit limit from a constant, or an unknown`
	`1217`	`+ /// one from a SCEVCouldNotCompute. No other types of SCEVs are allowed`
	`1218`	`+ /// as arguments and asserts enforce that internally.`
`1216`	`1219`	`/implicit/ ExitLimit(const SCEV *E);`
`1217`	`1220`
`1218`	`1221`	`ExitLimit(`