diff --git a/stdlib/public/core/LifetimeManager.swift b/stdlib/public/core/LifetimeManager.swift
index 8d51e453bcedc..832ea128182bc 100644
--- a/stdlib/public/core/LifetimeManager.swift
+++ b/stdlib/public/core/LifetimeManager.swift
@@ -15,6 +15,7 @@
 /// - Parameters:
 ///   - x: An instance to preserve until this function returns.
 @_alwaysEmitIntoClient
+@_transparent
 public func extendLifetime<T: ~Copyable & ~Escapable>(
   _ x: borrowing T
 ) {
@@ -31,6 +32,7 @@ public func extendLifetime<T: ~Copyable & ~Escapable>(
 ///     return value for the `withExtendedLifetime(_:_:)` method.
 /// - Returns: The return value, if any, of the `body` closure parameter.
 @_alwaysEmitIntoClient
+@inline(always)
 public func withExtendedLifetime<
   T: ~Copyable & ~Escapable,
   E: Error,
@@ -64,6 +66,7 @@ internal func __abi_withExtendedLifetime<T, Result>(
 ///     return value for the `withExtendedLifetime(_:_:)` method.
 /// - Returns: The return value, if any, of the `body` closure parameter.
 @_alwaysEmitIntoClient
+@inline(always)
 public func withExtendedLifetime<
   T: ~Copyable & ~Escapable,
   E: Error,
@@ -117,6 +120,7 @@ public func _fixLifetime<T: ~Copyable & ~Escapable>(_ x: borrowing T) {
 ///     execution.
 /// - Returns: The return value, if any, of the `body` closure.
 @_alwaysEmitIntoClient
+@inline(always)
 public func withUnsafeMutablePointer<
   T: ~Copyable, E: Error, Result: ~Copyable
 >(
@@ -141,6 +145,7 @@ internal func __abi_se0413_withUnsafeMutablePointer<T, Result>(
 /// This function is similar to `withUnsafeMutablePointer`, except that it
 /// doesn't trigger stack protection for the pointer.
 @_alwaysEmitIntoClient
+@inline(always)
 public func _withUnprotectedUnsafeMutablePointer<
   T: ~Copyable, E: Error, Result: ~Copyable
 >(
@@ -176,6 +181,7 @@ public func _withUnprotectedUnsafeMutablePointer<
 ///     `withUnsafeMutablePointer(to:_:)` instead.
 /// - Returns: The return value, if any, of the `body` closure.
 @_alwaysEmitIntoClient
+@inline(always)
 public func withUnsafePointer<T: ~Copyable, E: Error, Result: ~Copyable>(
   to value: borrowing T,
   _ body: (UnsafePointer<T>) throws(E) -> Result
@@ -224,6 +230,7 @@ internal func __abi_withUnsafePointer<T, Result>(
 ///     `withUnsafeMutablePointer(to:_:)` instead.
 /// - Returns: The return value, if any, of the `body` closure.
 @_alwaysEmitIntoClient
+@inline(always)
 public func withUnsafePointer<T: ~Copyable, E: Error, Result: ~Copyable>(
   to value: inout T,
   _ body: (UnsafePointer<T>) throws(E) -> Result
@@ -250,6 +257,7 @@ internal func __abi_se0413_withUnsafePointer<T, Result>(
 /// This function is similar to `withUnsafePointer`, except that it
 /// doesn't trigger stack protection for the pointer.
 @_alwaysEmitIntoClient
+@inline(always)
 public func _withUnprotectedUnsafePointer<
   T: ~Copyable, E: Error, Result: ~Copyable
 >(
@@ -268,6 +276,7 @@ public func _withUnprotectedUnsafePointer<
 /// This function is similar to `withUnsafePointer`, except that it
 /// doesn't trigger stack protection for the pointer.
 @_alwaysEmitIntoClient
+@inline(always)
 public func _withUnprotectedUnsafePointer<
   T: ~Copyable, E: Error, Result: ~Copyable
 >(
diff --git a/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-1distinct_use.swift b/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-1distinct_use.swift
index c50291dd05a8a..02b77ef396ed7 100644
--- a/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-1distinct_use.swift
+++ b/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-1distinct_use.swift
@@ -5,8 +5,6 @@
 // UNSUPPORTED: CPU=armv7 && OS=ios
 // UNSUPPORTED: CPU=armv7s && OS=ios
 
-// CHECK: @"$sytN" = external{{( dllimport)?}} global %swift.full_existential_type
-
 // CHECK: @"$s4main5ValueOySiGMf" = linkonce_odr hidden constant <{
 // CHECK-SAME:    ptr,
 // CHECK-SAME:    [[INT]],
diff --git a/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-external_nonresilient-1distinct_use.swift b/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-external_nonresilient-1distinct_use.swift
index 635085fda2735..ae4c4eada98cd 100644
--- a/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-external_nonresilient-1distinct_use.swift
+++ b/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-external_nonresilient-1distinct_use.swift
@@ -14,8 +14,6 @@ import TestModule
 // UNSUPPORTED: CPU=armv7 && OS=ios
 // UNSUPPORTED: CPU=armv7s && OS=ios
 
-// CHECK: @"$sytN" = external{{( dllimport)?}} global %swift.full_existential_type
-
 // CHECK-NOT: @"$s4main5ValueOySiGMf"
 
 extension Int : P {}
diff --git a/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-external_resilient-1distinct_use.swift b/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-external_resilient-1distinct_use.swift
index bdf76e488d575..5ee3b633375d1 100644
--- a/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-external_resilient-1distinct_use.swift
+++ b/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-external_resilient-1distinct_use.swift
@@ -14,8 +14,6 @@ import TestModule
 // UNSUPPORTED: CPU=armv7 && OS=ios
 // UNSUPPORTED: CPU=armv7s && OS=ios
 
-// CHECK: @"$sytN" = external{{( dllimport)?}} global %swift.full_existential_type
-
 // CHECK-NOT: @"$s4main5ValueOySiGMf"
 
 extension Int : P {}
diff --git a/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-public-1distinct_use.swift b/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-public-1distinct_use.swift
index aba00c7196594..26d3458d00560 100644
--- a/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-public-1distinct_use.swift
+++ b/test/IRGen/prespecialized-metadata/enum-inmodule-1argument-1conformance-public-1distinct_use.swift
@@ -5,8 +5,6 @@
 // UNSUPPORTED: CPU=armv7 && OS=ios
 // UNSUPPORTED: CPU=armv7s && OS=ios
 
-// CHECK: @"$sytN" = external{{( dllimport)?}} global %swift.full_existential_type
-
 // CHECK: @"$s4main5ValueOySiGMf" = linkonce_odr hidden constant <{
 // CHECK-SAME:    ptr,
 // CHECK-SAME:    [[INT]],
diff --git a/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-1conformance-1distinct_use.swift b/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-1conformance-1distinct_use.swift
index 3f19f49858d88..ab9199c91602e 100644
--- a/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-1conformance-1distinct_use.swift
+++ b/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-1conformance-1distinct_use.swift
@@ -5,8 +5,6 @@
 // UNSUPPORTED: CPU=armv7 && OS=ios
 // UNSUPPORTED: CPU=armv7s && OS=ios
 
-// CHECK: @"$sytN" = external{{( dllimport)?}} global %swift.full_existential_type
-
 // CHECK: @"$s4main5ValueVySiGMf" = linkonce_odr hidden constant <{
 // CHECK-SAME:    ptr,
 // CHECK-SAME:    [[INT]],
diff --git a/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-2conformance-1distinct_use.swift b/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-2conformance-1distinct_use.swift
index b81ef37c7e0f4..529653c801575 100644
--- a/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-2conformance-1distinct_use.swift
+++ b/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-2conformance-1distinct_use.swift
@@ -5,8 +5,6 @@
 // UNSUPPORTED: CPU=armv7 && OS=ios
 // UNSUPPORTED: CPU=armv7s && OS=ios
 
-// CHECK: @"$sytN" = external{{( dllimport)?}} global %swift.full_existential_type
-
 // CHECK: @"$s4main5ValueVySiGMf" = linkonce_odr hidden constant <{
 // CHECK-SAME:    ptr,
 // CHECK-SAME:    [[INT]],
diff --git a/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-3conformance-1distinct_use.swift b/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-3conformance-1distinct_use.swift
index ea856289c9aee..ad91cec6160bd 100644
--- a/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-3conformance-1distinct_use.swift
+++ b/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-3conformance-1distinct_use.swift
@@ -5,8 +5,6 @@
 // UNSUPPORTED: CPU=armv7 && OS=ios
 // UNSUPPORTED: CPU=armv7s && OS=ios
 
-// CHECK: @"$sytN" = external{{( dllimport)?}} global %swift.full_existential_type
-
 // CHECK: @"$s4main5ValueVySiGMf" = linkonce_odr hidden constant <{
 // CHECK-SAME:    ptr,
 // CHECK-SAME:    [[INT]],
diff --git a/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-4conformance-1distinct_use.swift b/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-4conformance-1distinct_use.swift
index 95edfb7095d10..a511949b904f1 100644
--- a/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-4conformance-1distinct_use.swift
+++ b/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-4conformance-1distinct_use.swift
@@ -5,8 +5,6 @@
 // UNSUPPORTED: CPU=armv7 && OS=ios
 // UNSUPPORTED: CPU=armv7s && OS=ios
 
-// CHECK: @"$sytN" = external{{( dllimport)?}} global %swift.full_existential_type
-
 // CHECK: @"$s4main5ValueVySiGMf" = linkonce_odr hidden constant <{
 // CHECK-SAME:    ptr,
 // CHECK-SAME:    [[INT]],
diff --git a/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-5conformance-1distinct_use.swift b/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-5conformance-1distinct_use.swift
index de1efc39e47f5..747d7a18b4c9e 100644
--- a/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-5conformance-1distinct_use.swift
+++ b/test/IRGen/prespecialized-metadata/struct-inmodule-1argument-5conformance-1distinct_use.swift
@@ -5,8 +5,6 @@
 // UNSUPPORTED: CPU=armv7 && OS=ios
 // UNSUPPORTED: CPU=armv7s && OS=ios
 
-// CHECK: @"$sytN" = external{{( dllimport)?}} global %swift.full_existential_type
-
 // CHECK: @"$s4main5ValueVySiGMf" = linkonce_odr hidden constant <{
 // CHECK-SAME:    ptr,
 // CHECK-SAME:    [[INT]],