mirror of
https://github.com/apple/swift.git
synced 2025-12-21 12:14:44 +01:00
0e5cfa6259
A previous PR (https://github.com/apple/swift/pull/32407) that mass-modified tests left some duplicate `RUN:` lines behind.
73 lines
3.4 KiB
Swift
73 lines
3.4 KiB
Swift
// RUN: %target-swift-frontend -emit-sil -primary-file %s -o /dev/null -verify
|
|
//
|
|
// REQUIRES: !(CPU=i386 || CPU=x86_64)
|
|
//
|
|
// These are tests for diagnostics produced by constant propagation pass
|
|
// on floating-point operations that are specific to non-x86 architectures,
|
|
// which do not support Float80.
|
|
|
|
import StdlibUnittest
|
|
|
|
func testFPToIntConversion() {
|
|
_blackHole(Int8(1E309)) // expected-error {{invalid conversion: '1E309' overflows 'Int8'}}
|
|
// expected-warning@-1 {{'1E309' overflows to inf because its magnitude exceeds the limits of a float literal}}
|
|
|
|
_blackHole(UInt8(-1E309)) // expected-error {{negative literal '-1E309' cannot be converted to 'UInt8'}}
|
|
// expected-warning@-1 {{'-1E309' overflows to -inf because its magnitude exceeds the limits of a float literal}}
|
|
|
|
_blackHole(Int64(1E309)) // expected-error {{invalid conversion: '1E309' overflows 'Int64'}}
|
|
// expected-warning@-1 {{'1E309' overflows to inf because its magnitude exceeds the limits of a float literal}}
|
|
|
|
_blackHole(UInt64(-1E309)) // expected-error {{negative literal '-1E309' cannot be converted to 'UInt64'}}
|
|
// expected-warning@-1 {{'-1E309' overflows to -inf because its magnitude exceeds the limits of a float literal}}
|
|
}
|
|
|
|
func testFloatConvertOverflow() {
|
|
let f1: Float = 1E309 // expected-warning {{'1E309' overflows to inf because its magnitude exceeds the limits of a float literal}}
|
|
_blackHole(f1)
|
|
let f2: Float32 = -1.0E999 // expected-warning {{'-1.0E999' overflows to -inf because its magnitude exceeds the limits of a float literal}}
|
|
_blackHole(f2)
|
|
|
|
let d4: Double = 1E309 // expected-warning {{'1E309' overflows to inf because its magnitude exceeds the limits of a float literal}}
|
|
_blackHole(d4)
|
|
let d6: Float64 = -1.0E999 // expected-warning {{'-1.0E999' overflows to -inf because its magnitude exceeds the limits of a float literal}}
|
|
_blackHole(d6)
|
|
let d8: Float64 = -1.7976931348623159E+308 // expected-warning {{'-1.7976931348623159E+308' overflows to -inf because its magnitude exceeds the limits of a float literal}}
|
|
_blackHole(d8)
|
|
|
|
// Warnings cannot be suppressed when a literal overflows MaxBuiltinFloatType.
|
|
_blackHole(Float(1E309)) // expected-warning {{'1E309' overflows to inf because its magnitude exceeds the limits of a float literal}}
|
|
_blackHole(Double(1E309)) // expected-warning {{'1E309' overflows to inf because its magnitude exceeds the limits of a float literal}}
|
|
}
|
|
|
|
func testFloatConvertUnderflow() {
|
|
// FIXME: False Negative: The literals that underflow MaxBuiltinFloatType
|
|
// are not detected.
|
|
let f1: Float = 1E-400
|
|
_blackHole(f1)
|
|
let d2: Double = 1E-309
|
|
_blackHole(d2)
|
|
let d4: Double = 5E-324
|
|
_blackHole(d4)
|
|
|
|
// All warnings are disabled during explicit conversions.
|
|
_blackHole(Float(1E-400))
|
|
_blackHole(Double(1E-309))
|
|
_blackHole(Double(5E-324))
|
|
}
|
|
|
|
func testHexFloatImprecision() {
|
|
// FIXME: False Negative: literals that underflow MaxBuiltinFloatType are
|
|
// not detected.
|
|
let d3: Double = 0x1.0000000000001p-1023
|
|
_blackHole(d3)
|
|
let d4: Double = 0x1.00000000000001p-1000
|
|
_blackHole(d4)
|
|
|
|
// All warnings are disabled during explicit conversions.
|
|
_blackHole(Float(0x1.00000000000001p-127))
|
|
_blackHole(Float(0x1.0000000000001p-1023))
|
|
_blackHole(Double(0x1.0000000000001p-1023))
|
|
_blackHole(Double(0x1.00000000000001p-1000))
|
|
}
|