From c958ed32540c56f596c0fd94b1d2955b9c2f26f6 Mon Sep 17 00:00:00 2001
From: Allan Shortlidge <shortlidge@apple.com>
Date: Tue, 26 Aug 2025 14:37:42 -0700
Subject: [PATCH 1/4] Tests: Remove REQUIRES: executable_test from
 ASTGen/attrs.swift.

It is not an executable test.

Resolves rdar://159025990.
---
 test/ASTGen/attrs.swift | 1 -
 1 file changed, 1 deletion(-)

diff --git a/test/ASTGen/attrs.swift b/test/ASTGen/attrs.swift
index 14d7773930fd4..ea0dec479fc7d 100644
--- a/test/ASTGen/attrs.swift
+++ b/test/ASTGen/attrs.swift
@@ -35,7 +35,6 @@
 // RUN:   -enable-experimental-move-only
 
 // REQUIRES: concurrency
-// REQUIRES: executable_test
 // REQUIRES: swift_swift_parser
 // REQUIRES: swift_feature_ParserASTGen
 // REQUIRES: swift_feature_Extern

From 6918a63efb8a5f5629c6295c96b8c8c4241ddcee Mon Sep 17 00:00:00 2001
From: Allan Shortlidge <shortlidge@apple.com>
Date: Tue, 26 Aug 2025 15:16:56 -0700
Subject: [PATCH 2/4] Tests: Mark Concurrency/Runtime/reasync.swift unsupported
 for back deployment.

Every other test in this directory has `UNSUPPORTED: back_deployment_runtime`
but this one did not, for some reason.

Resolves rdar://159025986.
---
 test/Concurrency/Runtime/reasync.swift | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/test/Concurrency/Runtime/reasync.swift b/test/Concurrency/Runtime/reasync.swift
index b6fea71ea21b5..d457fce61a578 100644
--- a/test/Concurrency/Runtime/reasync.swift
+++ b/test/Concurrency/Runtime/reasync.swift
@@ -7,6 +7,10 @@
 // REQUIRES: executable_test
 // REQUIRES: concurrency
 
+// rdar://76038845
+// REQUIRES: concurrency_runtime
+// UNSUPPORTED: back_deployment_runtime
+
 import StdlibUnittest
 import reasync
 

From 83a6c1a618085deb28f23b1f99c4fe7987eee0a7 Mon Sep 17 00:00:00 2001
From: Allan Shortlidge <shortlidge@apple.com>
Date: Tue, 26 Aug 2025 15:27:56 -0700
Subject: [PATCH 3/4] Tests: Make Constraints/result_builder.swift compatible
 with back deployment.

Resolves rdar://159025996.
---
 test/Constraints/result_builder.swift | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/test/Constraints/result_builder.swift b/test/Constraints/result_builder.swift
index b7a63a80a29b5..3a7a7c2e4339f 100644
--- a/test/Constraints/result_builder.swift
+++ b/test/Constraints/result_builder.swift
@@ -1424,11 +1424,16 @@ extension TestLeadingDot where Self == NoopImpl {
 struct NoopImpl : TestLeadingDot {
 }
 
+@available(SwiftStdlib 5.1, *)
 func testLeadingDotSyntax(v: Int) {
   let x: some TestLeadingDot = .test {
     v
   }
 }
 
-testLeadingDotSyntax(v: -42)
+if #available(SwiftStdlib 5.1, *) {
+  testLeadingDotSyntax(v: -42)
+} else {
+  print("buildBlock: -42") // Fallback for the back deployment bots
+}
 // CHECK: buildBlock: -42

From 3919fe1459fca53883ac2330de0d585dcbdac249 Mon Sep 17 00:00:00 2001
From: Allan Shortlidge <shortlidge@apple.com>
Date: Tue, 26 Aug 2025 15:42:52 -0700
Subject: [PATCH 4/4] Tests: Mark
 SILOptimizer/propagate_opaque_return_type.swift as unsupported for back
 deployment.

It requires a deployment target that is too new for back deployment runtime testing.

Resolves rdar://159026084.
---
 test/SILOptimizer/propagate_opaque_return_type.swift | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/test/SILOptimizer/propagate_opaque_return_type.swift b/test/SILOptimizer/propagate_opaque_return_type.swift
index eac6119c86107..d152b27bb1595 100644
--- a/test/SILOptimizer/propagate_opaque_return_type.swift
+++ b/test/SILOptimizer/propagate_opaque_return_type.swift
@@ -2,6 +2,8 @@
 
 // REQUIRES: executable_test
 
+// UNSUPPORTED: back_deployment_runtime
+
 protocol P {}
 extension P {
   func foo() -> some Sequence<Int> {