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// RUN: %target-swift-frontend -emit-ir -O %s | %FileCheck %s -check-prefix CHECK -check-prefix CHECK-%target-os
#if canImport(Darwin)
import Darwin
#elseif canImport(Glibc)
import Glibc
#elseif os(WASI)
import WASILibc
#elseif canImport(Android)
import Android
#elseif os(Windows)
import CRT
#else
#error("Unsupported platform")
#endif
// Make sure we use an intrinsic for functions such as exp.
// CHECK-LABEL: define {{.*}}test1
// CHECK-ios: call float @llvm.exp.f32
// CHECK-macosx: call float @llvm.exp.f32
// CHECK-tvos: call float @llvm.exp.f32
// CHECK-watchos: call float @llvm.exp.f32
// CHECK-darwin: call float @llvm.exp.f32
// CHECK-linux-gnu: call float @expf
// CHECK-windows: call float @expf
public func test1(f : Float) -> Float {
return exp(f)
}
// CHECK-LABEL: define {{.*}}test2
// CHECK: call double @llvm.exp.f64
public func test2(f : Double) -> Double {
return _exp(f)
}
// CHECK-LABEL: define {{.*}}test3
// CHECK: call double @sqrt
public func test3(d : Double) -> Double {
// This call uses the sqrt function imported from C.
return sqrt(d)
}
// CHECK-LABEL: define {{.*}}test4
// CHECK-LINUX: call float @llvm.sqrt.f32
// CHECK-WINDOWS: call float @llvm.sqrt.f32
public func test4(f : Float) -> Float {
// This call does not match the signature for the C sqrt function
// (as opposed to sqrtf) so instead it gets compiled using the generic
// sqrt function from the stdlib's tgmath.swift. That translates to
// _stdlib_squareRootf and then to __builtin_sqrtf via SwiftShims.
return sqrt(f)
}
// CHECK-LABEL: define {{.*}}test3a
// CHECK: call double @remainder
public func test3a(d : Double) -> Double {
return remainder(1,d)
}
// CHECK-LABEL: define {{.*}}test4a
// CHECK: call float @remainder
public func test4a(f : Float) -> Float {
return remainder(1,f)
}
// CHECK-LABEL: define {{.*}}test5
// CHECK: ret float 2
public func test5( ) -> Float {
return sqrt(4)
}
// CHECK-LABEL: define {{.*}}test6
// CHECK: ret double 2
public func test6( ) -> Double {
return sqrt(4)
}
// CHECK-LABEL: define {{.*}}test7
// CHECK-NOT: ret float undef
public func test7( ) -> Float {
return sqrt(-1)
}
// CHECK-LABEL: define {{.*}}test8
// CHECK-NOT: ret double undef
public func test8( ) -> Double {
return sqrt(-1)
}
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