// These tests should crash.
// REQUIRES: long_tests
// RUN: rm -rf %t
// RUN: mkdir -p %t
// RUN: %S/../../utils/gyb %s -o %t/FixedPointArithmeticTraps.swift
// RUN: xcrun -sdk %target-sdk-name clang++ -arch %target-cpu %S/Inputs/CatchCrashes.cpp -c -o %t/CatchCrashes.o
// RUN: xcrun -sdk %target-sdk-name clang++ -arch %target-cpu %S/Inputs/OpaqueIdentityFunctions/OpaqueIdentityFunctions.m -c -o %t/OpaqueIdentityFunctions.o -g
// RUN: %target-build-swift %t/FixedPointArithmeticTraps.swift -I %S/Inputs/OpaqueIdentityFunctions/ -Xlinker %t/CatchCrashes.o -Xlinker %t/OpaqueIdentityFunctions.o -o %t/a.out_Debug -Xfrontend -disable-access-control
// RUN: %target-build-swift %t/FixedPointArithmeticTraps.swift -I %S/Inputs/OpaqueIdentityFunctions/ -Xlinker %t/CatchCrashes.o -Xlinker %t/OpaqueIdentityFunctions.o -o %t/a.out_Release -O -Xfrontend -disable-access-control
//
// RUN: %target-run %t/a.out_Debug 1 2>&1 | FileCheck %s -check-prefix=CHECK
// RUN: %target-run %t/a.out_Debug 2 2>&1 | FileCheck %s -check-prefix=CHECK
// RUN: %target-run %t/a.out_Debug 3 2>&1 | FileCheck %s -check-prefix=CHECK
// RUN: %target-run %t/a.out_Debug 4 2>&1 | FileCheck %s -check-prefix=CHECK
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// RUN: %target-run %t/a.out_Debug 80 2>&1 | FileCheck %s -check-prefix=CHECK
//
// RUN: %target-run %t/a.out_Release 1 2>&1 | FileCheck %s -check-prefix=CHECK
// RUN: %target-run %t/a.out_Release 2 2>&1 | FileCheck %s -check-prefix=CHECK
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// RUN: %target-run %t/a.out_Release 80 2>&1 | FileCheck %s -check-prefix=CHECK

// CHECK: OK
// CHECK: CRASHED: SIG{{ILL|TRAP}}

import Darwin
import OpaqueIdentityFunctions

// Note: in this file, we need to go through opaque functions to load
// constants.  This is to to check runtime behaviour and ensure the constant is
// not folded.

func getInt(x: Int) -> Int {
  return Int(getInt64(x.toIntMax()))
}

func getUInt(x: UInt) -> UInt {
  return UInt(getUInt64(x.toUIntMax()))
}

func expectOverflow<T>(res: (T, overflow: Bool), line: Int = __LINE__) {
  if !res.overflow {
    println("expected overflow at line \(line)")
    exit(1)
  }
}

func expectNoOverflow<T>(res: (T, overflow: Bool), line: Int = __LINE__) {
  if res.overflow {
    println("expected no overflow at line \(line)")
    exit(1)
  }
}

// Interpret the command line arguments.
var arg = Process.arguments[1]

%{

allIntTypes = [
    ('signed', 'Int'),
    ('signed', 'Int8'),
    ('signed', 'Int16'),
    ('signed', 'Int32'),
    ('signed', 'Int64'),
    ('unsigned', 'UInt'),
    ('unsigned', 'UInt8'),
    ('unsigned', 'UInt16'),
    ('unsigned', 'UInt32'),
    ('unsigned', 'UInt64'),
]

}%

% testNum = 1
% for (signedness, IntTy) in allIntTypes:

//
// Test increment/decrement for ${IntTy}
//

if arg == "${testNum}" {
  var x = get${IntTy}(${IntTy}.min)
  x++

  x = get${IntTy}(${IntTy}.min)
  println("OK")
  // IntTy.min--
  x--
}
%   testNum += 1

if arg == "${testNum}" {
  var x = get${IntTy}(${IntTy}.max)
  x--

  x = get${IntTy}(${IntTy}.max)
  println("OK")
  // IntTy.max++
  x++
}
%   testNum += 1

//
// Test addition for ${IntTy}
//

if arg == "${testNum}" {
  var a = get${IntTy}(${IntTy}.max / 3)

  expectNoOverflow(${IntTy}.addWithOverflow(a, get${IntTy}(${IntTy}.max / 3)))
  a = a + get${IntTy}(${IntTy}.max / 3)

  expectNoOverflow(${IntTy}.addWithOverflow(a, get${IntTy}(${IntTy}.max / 3)))
  a = a + get${IntTy}(${IntTy}.max / 3)

  // Overflow in addition.
  expectOverflow(${IntTy}.addWithOverflow(a, get${IntTy}(${IntTy}.max / 3)))
  println("OK")
  a = a + get${IntTy}(${IntTy}.max / 3)
}
%   testNum += 1

//
// Test subtraction for ${IntTy}
//

if arg == "${testNum}" {
  var a = get${IntTy}(${IntTy}.min + get${IntTy}(${IntTy}.max / 3))

  expectNoOverflow(${IntTy}.subtractWithOverflow(a, get${IntTy}(${IntTy}.max / 3)))
  a = a - get${IntTy}(${IntTy}.max / 3)

  // Overflow in subtraction.
  expectOverflow(${IntTy}.subtractWithOverflow(a, get${IntTy}(${IntTy}.max / 3)))
  println("OK")
  a = a - get${IntTy}(${IntTy}.max / 3)
}
%   testNum += 1

//
// Test multiplication for ${IntTy}
//

if arg == "${testNum}" {
%   if IntTy == 'Int8':
  var a = get${IntTy}(${IntTy}.max / 3)

  expectNoOverflow(${IntTy}.multiplyWithOverflow(a, get${IntTy}(2)))
  a = a * get${IntTy}(2)

  // <rdar://problem/17549300> [FastISel?] LLVM miscompiles
  // @llvm.smul.with.overflow.i8 on x86-64
  var runTest = !_isDebugAssertConfiguration()
#if arch(arm) || arch(arm64)
  runTest = true
#endif
  if !runTest {
    // There is a bug in LLVM, we can not run the test, so just crash in some
    // way.
    a = get${IntTy}(${IntTy}.max)
    println("OK")
    a++
  }
  expectOverflow(${IntTy}.multiplyWithOverflow(a, get${IntTy}(2)))
  println("OK")
  a = a * get${IntTy}(2)
%   else:
  var a = get${IntTy}(${IntTy}.max / 3)

  expectNoOverflow(${IntTy}.multiplyWithOverflow(a, get${IntTy}(2)))
  a = a * get${IntTy}(2)

  // Overflow in multiplication.
  expectOverflow(${IntTy}.multiplyWithOverflow(a, get${IntTy}(2)))
  println("OK")
  a = a * get${IntTy}(2)
%   end
}
%   testNum += 1

//
// Test division for ${IntTy}
//

if arg == "${testNum}" {
  var a = get${IntTy}(${IntTy}.max / 3)

  // x / 3
  expectNoOverflow(${IntTy}.divideWithOverflow(a, get${IntTy}(3)))
  a = a / get${IntTy}(3)

  // x / 0
  expectOverflow(${IntTy}.divideWithOverflow(a, get${IntTy}(0)))
  println("OK")
  a = a / get${IntTy}(0)
}
%   testNum += 1

%   if signedness == 'signed':

if arg == "${testNum}" {
  var a = get${IntTy}(${IntTy}.min)

  expectNoOverflow(${IntTy}.divideWithOverflow(a, get${IntTy}(3)))
  a = a / get${IntTy}(3)

  a = get${IntTy}(${IntTy}.min)
  expectOverflow(${IntTy}.divideWithOverflow(a, get${IntTy}(-1)))
  println("OK")
  a = a / get${IntTy}(-1)
  // IntTy.min / -1
}
%     testNum += 1

%   end

//
// Test remainder computation for ${IntTy}
//

if arg == "${testNum}" {
  var a = get${IntTy}(${IntTy}.max / 3)

  // x % 3
  expectNoOverflow(${IntTy}.remainderWithOverflow(a, get${IntTy}(3)))
  a = a % get${IntTy}(3)

  // x % 0
  expectOverflow(${IntTy}.remainderWithOverflow(a, get${IntTy}(0)))
  println("OK")
  a = a % get${IntTy}(0)
}
%   testNum += 1

%   if signedness == 'signed':

if arg == "${testNum}" {
  var a = get${IntTy}(${IntTy}.min)

  // Int.min % 3
  expectNoOverflow(${IntTy}.remainderWithOverflow(a, get${IntTy}(3)))
  a = a % get${IntTy}(3)

  // Int.min % -1
  a = get${IntTy}(${IntTy}.min)
  expectOverflow(${IntTy}.remainderWithOverflow(a, get${IntTy}(-1)))
  println("OK")
  a = a % get${IntTy}(-1)
}
%     testNum += 1

%   end

// This comment prevents gyb from miscompiling this file.
// <rdar://problem/17548877> gyb miscompiles a certain for loop

% end

println("BUSTED: should have crashed already")
exit(1)