Revert "[SE-0368] StaticBigInt"

include/swift/AST/Builtins.def

@@ -2,7 +2,7 @@
 //
 // This source file is part of the Swift.org open source project
 //
-// Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
+// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
 // Licensed under Apache License v2.0 with Runtime Library Exception
 //
 // See https://swift.org/LICENSE.txt for license information
@@ -701,18 +701,6 @@ BUILTIN_MISC_OPERATION(UToUCheckedTrunc, "u_to_u_checked_trunc", "n", Special)
 /// IntToFPWithOverflow has type (Integer) -> Float
 BUILTIN_MISC_OPERATION(IntToFPWithOverflow, "itofp_with_overflow", "n", Special)
 
-/// Builtin.bitWidth_IntLiteral has type
-/// (_ value: Builtin.IntLiteral) -> Builtin.Word
-BUILTIN_MISC_OPERATION(BitWidth, "bitWidth", "n", Special)
-
-/// Builtin.isNegative_IntLiteral has type
-/// (_ value: Builtin.IntLiteral) -> Builtin.Int1
-BUILTIN_MISC_OPERATION(IsNegative, "isNegative", "n", Special)
-
-/// Builtin.wordAtIndex_IntLiteral has type
-/// (_ value: Builtin.IntLiteral, _ index: Builtin.Word) -> Builtin.Word
-BUILTIN_MISC_OPERATION(WordAtIndex, "wordAtIndex", "n", Special)
-
 /// zeroInitializer has type <T> () -> T
 BUILTIN_MISC_OPERATION(ZeroInitializer, "zeroInitializer", "n", Special)
 

lib/AST/Builtins.cpp

@@ -2,7 +2,7 @@
 //
 // This source file is part of the Swift.org open source project
 //
-// Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
+// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
 // Licensed under Apache License v2.0 with Runtime Library Exception
 //
 // See https://swift.org/LICENSE.txt for license information
@@ -1796,33 +1796,6 @@ static ValueDecl *getIntToFPWithOverflowOperation(ASTContext &Context,
   return getBuiltinFunction(Id, { InTy }, OutTy);
 }
 
-static ValueDecl *getBitWidthOperation(
-  ASTContext &ctx,
-  Identifier id,
-  Type valueTy
-) {
-  if (!valueTy->getAs<BuiltinIntegerLiteralType>()) return nullptr;
-  return getBuiltinFunction(ctx, id, _thin, _parameters(valueTy), _word);
-}
-
-static ValueDecl *getIsNegativeOperation(
-  ASTContext &ctx,
-  Identifier id,
-  Type valueTy
-) {
-  if (!valueTy->getAs<BuiltinIntegerLiteralType>()) return nullptr;
-  return getBuiltinFunction(ctx, id, _thin, _parameters(valueTy), _int(1));
-}
-
-static ValueDecl *getWordAtIndexOperation(
-  ASTContext &ctx,
-  Identifier id,
-  Type valueTy
-) {
-  if (!valueTy->getAs<BuiltinIntegerLiteralType>()) return nullptr;
-  return getBuiltinFunction(ctx, id, _thin, _parameters(valueTy, _word), _word);
-}
-
 static ValueDecl *getUnreachableOperation(ASTContext &Context,
                                           Identifier Id) {
   auto NeverTy = Context.getNeverType();
@@ -2808,18 +2781,6 @@ ValueDecl *swift::getBuiltinValueDecl(ASTContext &Context, Identifier Id) {
     if (Types.size() != 2) return nullptr;
     return getIntToFPWithOverflowOperation(Context, Id, Types[0], Types[1]);
 
-  case BuiltinValueKind::BitWidth:
-    if (Types.size() != 1) return nullptr;
-    return getBitWidthOperation(Context, Id, Types[0]);
-
-  case BuiltinValueKind::IsNegative:
-    if (Types.size() != 1) return nullptr;
-    return getIsNegativeOperation(Context, Id, Types[0]);
-
-  case BuiltinValueKind::WordAtIndex:
-    if (Types.size() != 1) return nullptr;
-    return getWordAtIndexOperation(Context, Id, Types[0]);
-
   case BuiltinValueKind::GetObjCTypeEncoding:
     return getGetObjCTypeEncodingOperation(Context, Id);
 

lib/IRGen/GenBuiltin.cpp

@@ -2,7 +2,7 @@
 //
 // This source file is part of the Swift.org open source project
 //
-// Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
+// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
 // Licensed under Apache License v2.0 with Runtime Library Exception
 //
 // See https://swift.org/LICENSE.txt for license information
@@ -961,24 +961,6 @@ void irgen::emitBuiltinCall(IRGenFunction &IGF, const BuiltinInfo &Builtin,
     return;
   }
 
-  if (Builtin.ID == BuiltinValueKind::BitWidth) {
-    assert(Builtin.Types[0]->is<BuiltinIntegerLiteralType>());
-    out.add(emitIntLiteralBitWidth(IGF, args));
-    return;
-  }
-
-  if (Builtin.ID == BuiltinValueKind::IsNegative) {
-    assert(Builtin.Types[0]->is<BuiltinIntegerLiteralType>());
-    out.add(emitIntLiteralIsNegative(IGF, args));
-    return;
-  }
-
-  if (Builtin.ID == BuiltinValueKind::WordAtIndex) {
-    assert(Builtin.Types[0]->is<BuiltinIntegerLiteralType>());
-    out.add(emitIntLiteralWordAtIndex(IGF, args));
-    return;
-  }
-
   if (Builtin.ID == BuiltinValueKind::Once
       || Builtin.ID == BuiltinValueKind::OnceWithContext) {
     // The input type is statically (Builtin.RawPointer, @convention(thin) () -> ()).

lib/IRGen/GenIntegerLiteral.cpp

@@ -2,7 +2,7 @@
 //
 // This source file is part of the Swift.org open source project
 //
-// Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
+// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
 // Licensed under Apache License v2.0 with Runtime Library Exception
 //
 // See https://swift.org/LICENSE.txt for license information
@@ -401,45 +401,3 @@ llvm::Value *irgen::emitIntegerLiteralToFP(IRGenFunction &IGF,
     llvm_unreachable("not a floating-point type");
   }
 }
-
-llvm::Value *irgen::emitIntLiteralBitWidth(
-  IRGenFunction &IGF,
-  Explosion &in
-) {
-  auto data = in.claimNext();
-  auto flags = in.claimNext();
-  (void)data; // [[maybe_unused]]
-  return IGF.Builder.CreateLShr(
-    flags,
-    IGF.IGM.getSize(Size(IntegerLiteralFlags::BitWidthShift))
-  );
-}
-
-llvm::Value *irgen::emitIntLiteralIsNegative(
-  IRGenFunction &IGF,
-  Explosion &in
-) {
-  auto data = in.claimNext();
-  auto flags = in.claimNext();
-  (void)data; // [[maybe_unused]]
-  static_assert(
-    IntegerLiteralFlags::IsNegativeFlag == 1,
-    "hardcoded in this truncation"
-  );
-  return IGF.Builder.CreateTrunc(flags, IGF.IGM.Int1Ty);
-}
-
-llvm::Value *irgen::emitIntLiteralWordAtIndex(
-  IRGenFunction &IGF,
-  Explosion &in
-) {
-  auto data = in.claimNext();
-  auto flags = in.claimNext();
-  auto index = in.claimNext();
-  (void)flags; // [[maybe_unused]]
-  return IGF.Builder.CreateLoad(
-    IGF.Builder.CreateInBoundsGEP(IGF.IGM.SizeTy, data, index),
-    IGF.IGM.SizeTy,
-    IGF.IGM.getPointerAlignment()
-  );
-}

lib/IRGen/GenIntegerLiteral.h

@@ -2,7 +2,7 @@
 //
 // This source file is part of the Swift.org open source project
 //
-// Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
+// Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors
 // Licensed under Apache License v2.0 with Runtime Library Exception
 //
 // See https://swift.org/LICENSE.txt for license information
@@ -66,10 +66,6 @@ llvm::Value *emitIntegerLiteralToFP(IRGenFunction &IGF,
                                     Explosion &in,
                                     llvm::Type *toType);
 
-llvm::Value *emitIntLiteralBitWidth(IRGenFunction &IGF, Explosion &in);
-llvm::Value *emitIntLiteralIsNegative(IRGenFunction &IGF, Explosion &in);
-llvm::Value *emitIntLiteralWordAtIndex(IRGenFunction &IGF, Explosion &in);
-
 }
 }
 

lib/SIL/IR/OperandOwnership.cpp

@@ -2,7 +2,7 @@
 //
 // This source file is part of the Swift.org open source project
 //
-// Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
+// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
 // Licensed under Apache License v2.0 with Runtime Library Exception
 //
 // See https://swift.org/LICENSE.txt for license information
@@ -742,9 +742,6 @@ BUILTIN_OPERAND_OWNERSHIP(InstantaneousUse, ICMP_ULE)
 BUILTIN_OPERAND_OWNERSHIP(InstantaneousUse, ICMP_ULT)
 BUILTIN_OPERAND_OWNERSHIP(InstantaneousUse, InsertElement)
 BUILTIN_OPERAND_OWNERSHIP(InstantaneousUse, IntToFPWithOverflow)
-BUILTIN_OPERAND_OWNERSHIP(InstantaneousUse, BitWidth)
-BUILTIN_OPERAND_OWNERSHIP(InstantaneousUse, IsNegative)
-BUILTIN_OPERAND_OWNERSHIP(InstantaneousUse, WordAtIndex)
 BUILTIN_OPERAND_OWNERSHIP(InstantaneousUse, IntToPtr)
 BUILTIN_OPERAND_OWNERSHIP(InstantaneousUse, IsOptionalType)
 BUILTIN_OPERAND_OWNERSHIP(InstantaneousUse, IsPOD)

lib/SIL/IR/ValueOwnership.cpp

@@ -2,7 +2,7 @@
 //
 // This source file is part of the Swift.org open source project
 //
-// Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
+// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
 // Licensed under Apache License v2.0 with Runtime Library Exception
 //
 // See https://swift.org/LICENSE.txt for license information
@@ -495,9 +495,6 @@ CONSTANT_OWNERSHIP_BUILTIN(None, SToSCheckedTrunc)
 CONSTANT_OWNERSHIP_BUILTIN(None, SToUCheckedTrunc)
 CONSTANT_OWNERSHIP_BUILTIN(None, UToUCheckedTrunc)
 CONSTANT_OWNERSHIP_BUILTIN(None, IntToFPWithOverflow)
-CONSTANT_OWNERSHIP_BUILTIN(None, BitWidth)
-CONSTANT_OWNERSHIP_BUILTIN(None, IsNegative)
-CONSTANT_OWNERSHIP_BUILTIN(None, WordAtIndex)
 
 // This is surprising, Builtin.unreachable returns a "Never" value which is
 // trivially typed.

lib/SILOptimizer/Transforms/AccessEnforcementReleaseSinking.cpp

@@ -2,7 +2,7 @@
 //
 // This source file is part of the Swift.org open source project
 //
-// Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
+// Copyright (c) 2014 - 2018 Apple Inc. and the Swift project authors
 // Licensed under Apache License v2.0 with Runtime Library Exception
 //
 // See https://swift.org/LICENSE.txt for license information
@@ -129,9 +129,6 @@ static bool isBarrier(SILInstruction *inst) {
     case BuiltinValueKind::SToSCheckedTrunc:
     case BuiltinValueKind::UToUCheckedTrunc:
     case BuiltinValueKind::IntToFPWithOverflow:
-    case BuiltinValueKind::BitWidth:
-    case BuiltinValueKind::IsNegative:
-    case BuiltinValueKind::WordAtIndex:
     case BuiltinValueKind::ZeroInitializer:
     case BuiltinValueKind::Once:
     case BuiltinValueKind::OnceWithContext:

stdlib/public/core/CMakeLists.txt

@@ -2,7 +2,7 @@
 #
 # This source file is part of the Swift.org open source project
 #
-# Copyright (c) 2014 - 2022 Apple Inc. and the Swift project authors
+# Copyright (c) 2014 - 2019 Apple Inc. and the Swift project authors
 # Licensed under Apache License v2.0 with Runtime Library Exception
 #
 # See https://swift.org/LICENSE.txt for license information
@@ -226,7 +226,6 @@ set(SWIFTLIB_SOURCES
   PlaygroundDisplay.swift
   CommandLine.swift
   SliceBuffer.swift
-  StaticBigInt.swift
   UnfoldSequence.swift
   UnsafeBufferPointerSlice.swift
   VarArgs.swift

stdlib/public/core/GroupInfo.json

@@ -167,8 +167,7 @@
     "Integers": [
       "Integers.swift",
       "IntegerTypes.swift",
-      "IntegerParsing.swift",
-      "StaticBigInt.swift"],
+      "IntegerParsing.swift"],
     "Floating": [
       "FloatingPoint.swift",
       "FloatingPointParsing.swift",