diff --git a/lib/Parse/ParseStmt.cpp b/lib/Parse/ParseStmt.cpp
index 7bdb112cd1993..67b02a28ceeb8 100644
--- a/lib/Parse/ParseStmt.cpp
+++ b/lib/Parse/ParseStmt.cpp
@@ -771,8 +771,8 @@ ParserResult<Stmt> Parser::parseStmtReturn(SourceLoc tryLoc) {
 
     // Issue a warning when the returned expression is on a different line than
     // the return keyword, but both have the same indentation.
-    if (SourceMgr.getPresumedLineAndColumnForLoc(ReturnLoc).second ==
-        SourceMgr.getPresumedLineAndColumnForLoc(ExprLoc).second) {
+    if (SourceMgr.getLineAndColumnInBuffer(ReturnLoc).second ==
+        SourceMgr.getLineAndColumnInBuffer(ExprLoc).second) {
       diagnose(ExprLoc, diag::unindented_code_after_return);
       diagnose(ExprLoc, diag::indent_expression_to_silence);
     }
diff --git a/lib/Sema/MiscDiagnostics.cpp b/lib/Sema/MiscDiagnostics.cpp
index 4f6faa96c55b2..8d5b52db5b505 100644
--- a/lib/Sema/MiscDiagnostics.cpp
+++ b/lib/Sema/MiscDiagnostics.cpp
@@ -3163,7 +3163,7 @@ static void checkSwitch(ASTContext &ctx, const SwitchStmt *stmt) {
         continue;
       
       auto &SM = ctx.SourceMgr;
-      auto prevLineCol = SM.getPresumedLineAndColumnForLoc(prevLoc);
+      auto prevLineCol = SM.getLineAndColumnInBuffer(prevLoc);
       if (SM.getLineAndColumnInBuffer(thisLoc).first != prevLineCol.first)
         continue;
 
diff --git a/stdlib/public/core/SequenceAlgorithms.swift b/stdlib/public/core/SequenceAlgorithms.swift
index 7b1e8f263e734..0af14d64144fa 100644
--- a/stdlib/public/core/SequenceAlgorithms.swift
+++ b/stdlib/public/core/SequenceAlgorithms.swift
@@ -794,8 +794,8 @@ extension Sequence {
     return try _compactMap(transform)
   }
 
-  // The implementation of flatMap accepting a closure with an optional result.
-  // Factored out into a separate functions in order to be used in multiple
+  // The implementation of compactMap accepting a closure with an optional result.
+  // Factored out into a separate function in order to be used in multiple
   // overloads.
   @inlinable // protocol-only
   @inline(__always)