From e10154088bc52d1b25c100576cbb6c925f83b113 Mon Sep 17 00:00:00 2001
From: Ben Cohen <ben_cohen@apple.com>
Date: Thu, 25 Oct 2018 08:45:48 -0700
Subject: [PATCH 1/2] Uninline float description

---
 stdlib/public/core/FloatingPointTypes.swift.gyb | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/stdlib/public/core/FloatingPointTypes.swift.gyb b/stdlib/public/core/FloatingPointTypes.swift.gyb
index 4afd5ed70a8ff..283ad12d48719 100644
--- a/stdlib/public/core/FloatingPointTypes.swift.gyb
+++ b/stdlib/public/core/FloatingPointTypes.swift.gyb
@@ -79,16 +79,11 @@ public struct ${Self} {
 
 extension ${Self} : CustomStringConvertible {
   /// A textual representation of the value.
-  @inlinable
   public var description: String {
-    if isFinite {
-      return _float${bits}ToString(self, debug: false)
-    } else if isNaN {
+    if isNaN {
       return "nan"
-    } else if sign == .minus {
-      return "-inf"
     } else {
-      return "inf"
+      return _float${bits}ToString(self, debug: false)
     }
   }
 }
@@ -96,13 +91,7 @@ extension ${Self} : CustomStringConvertible {
 extension ${Self} : CustomDebugStringConvertible {
   /// A textual representation of the value, suitable for debugging.
   public var debugDescription: String {
-    if isFinite || isNaN {
-      return _float${bits}ToString(self, debug: true)
-    } else if sign == .minus {
-      return "-inf"
-    } else {
-      return "inf"
-    }
+    return _float${bits}ToString(self, debug: true)
   }
 }
 

From 92f8f80aeb42e20b70538f136d5fb825199e8550 Mon Sep 17 00:00:00 2001
From: Ben Cohen <ben_cohen@apple.com>
Date: Thu, 25 Oct 2018 09:05:04 -0700
Subject: [PATCH 2/2] Uninline _floatNNToString

---
 stdlib/public/core/Runtime.swift.gyb                        | 2 --
 .../Outputs/stability-stdlib-abi.swift.expected             | 6 ++++++
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/stdlib/public/core/Runtime.swift.gyb b/stdlib/public/core/Runtime.swift.gyb
index 0092497aae0b6..79c220b4ea9d2 100644
--- a/stdlib/public/core/Runtime.swift.gyb
+++ b/stdlib/public/core/Runtime.swift.gyb
@@ -374,7 +374,6 @@ internal struct _Buffer72 {
 #if !os(Windows) && (arch(i386) || arch(x86_64))
 % end
 
-@usableFromInline // FIXME(sil-serialize-all)
 @_silgen_name("swift_float${bits}ToString")
 internal func _float${bits}ToStringImpl(
   _ buffer: UnsafeMutablePointer<UTF8.CodeUnit>,
@@ -382,7 +381,6 @@ internal func _float${bits}ToStringImpl(
   _ debug: Bool
 ) -> UInt
 
-@inlinable // FIXME(sil-serialize-all)
 internal func _float${bits}ToString(
   _ value: Float${bits}, debug: Bool
 ) -> String {
diff --git a/test/api-digester/Outputs/stability-stdlib-abi.swift.expected b/test/api-digester/Outputs/stability-stdlib-abi.swift.expected
index a05932aa31323..7a1bc0d8815eb 100644
--- a/test/api-digester/Outputs/stability-stdlib-abi.swift.expected
+++ b/test/api-digester/Outputs/stability-stdlib-abi.swift.expected
@@ -14,6 +14,12 @@ Constructor _DropFirstSequence.init(_iterator:limit:dropped:) has been removed
 Constructor _PrefixSequence.init(_iterator:maxLength:taken:) has been removed
 Func _DropFirstSequence.next() has been removed
 Func _PrefixSequence.next() has been removed
+Func _float32ToString(_:debug:) has been removed
+Func _float32ToStringImpl(_:_:_:_:) has been removed
+Func _float64ToString(_:debug:) has been removed
+Func _float64ToStringImpl(_:_:_:_:) has been removed
+Func _float80ToString(_:debug:) has been removed
+Func _float80ToStringImpl(_:_:_:_:) has been removed
 Var _DropFirstSequence._dropped has been removed
 Var _DropFirstSequence._iterator has been removed
 Var _PrefixSequence._iterator has been removed