From c8db45907f9b9343f8440797513e966cbd44b8eb Mon Sep 17 00:00:00 2001
From: Erik Eckstein <eeckstein@apple.com>
Date: Tue, 31 Oct 2023 20:00:39 +0100
Subject: [PATCH] EmbeddedRuntime: add swift_willThrow

---
 stdlib/public/core/EmbeddedRuntime.swift | 5 +++++
 test/embedded/throw-trap-stdlib.swift    | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/stdlib/public/core/EmbeddedRuntime.swift b/stdlib/public/core/EmbeddedRuntime.swift
index 206c7bfd44e..726ea5c027c 100644
--- a/stdlib/public/core/EmbeddedRuntime.swift
+++ b/stdlib/public/core/EmbeddedRuntime.swift
@@ -270,3 +270,8 @@ public func swift_once(predicate: UnsafeMutablePointer<Int>, fn: (@convention(c)
 public func swift_deletedMethodError() -> Never {
   Builtin.int_trap()
 }
+
+@_silgen_name("swift_willThrow")
+public func swift_willThrow() throws {
+}
+
diff --git a/test/embedded/throw-trap-stdlib.swift b/test/embedded/throw-trap-stdlib.swift
index ef151cd17ad..eb6f576d4ef 100644
--- a/test/embedded/throw-trap-stdlib.swift
+++ b/test/embedded/throw-trap-stdlib.swift
@@ -10,4 +10,4 @@ public func test() {
   }
 }
 
-// CHECK-NOT: swift_willThrow
+// CHECK: swift_willThrow