1 files changed, 6 insertions, 1 deletions
diff --git a/clang/lib/Sema/SemaCoroutine.cpp b/clang/lib/Sema/SemaCoroutine.cpp
index e4cb4cf059f..95758baff4a 100644
--- a/clang/lib/Sema/SemaCoroutine.cpp
+++ b/clang/lib/Sema/SemaCoroutine.cpp
@@ -708,9 +708,14 @@ ExprResult Sema::BuildResolvedCoawaitExpr(SourceLocation Loc, Expr *E,
   if (E->getValueKind() == VK_RValue)
     E = CreateMaterializeTemporaryExpr(E->getType(), E, true);
 
+  // The location of the `co_await` token cannot be used when constructing
+  // the member call expressions since it's before the location of `Expr`, which
+  // is used as the start of the member call expression.
+  SourceLocation CallLoc = E->getExprLoc();
+
   // Build the await_ready, await_suspend, await_resume calls.
   ReadySuspendResumeResult RSS =
-      buildCoawaitCalls(*this, Coroutine->CoroutinePromise, Loc, E);
+      buildCoawaitCalls(*this, Coroutine->CoroutinePromise, CallLoc, E);
   if (RSS.IsInvalid)
     return ExprError();