[InstCombine] add tests for copysign; NFC

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py

; RUN: opt -S -instcombine < %s | FileCheck %s

declare float @llvm.copysign.f32(float, float)

declare <3 x double> @llvm.copysign.v3f64(<3 x double>, <3 x double>)

define float @positive_sign_arg(float %x) {

; CHECK-LABEL: @positive_sign_arg(

; CHECK-NEXT:    [[R:%.*]] = call arcp float @llvm.copysign.f32(float [[X:%.*]], float 0.000000e+00)

; CHECK-NEXT:    ret float [[R]]

;

  %r = call arcp float @llvm.copysign.f32(float %x, float 0.0)

  ret float %r

}

define <3 x double> @positive_sign_arg_vec_splat(<3 x double> %x) {

; CHECK-LABEL: @positive_sign_arg_vec_splat(

; CHECK-NEXT:    [[R:%.*]] = call ninf <3 x double> @llvm.copysign.v3f64(<3 x double> [[X:%.*]], <3 x double> <double 4.200000e+01, double 4.200000e+01, double 4.200000e+01>)

; CHECK-NEXT:    ret <3 x double> [[R]]

;

  %r = call ninf <3 x double> @llvm.copysign.v3f64(<3 x double> %x, <3 x double> <double 42.0, double 42.0, double 42.0>)

  ret <3 x double> %r

}

define float @negative_sign_arg(float %x) {

; CHECK-LABEL: @negative_sign_arg(

; CHECK-NEXT:    [[R:%.*]] = call nnan float @llvm.copysign.f32(float [[X:%.*]], float -0.000000e+00)

; CHECK-NEXT:    ret float [[R]]

;

  %r = call nnan float @llvm.copysign.f32(float %x, float -0.0)

  ret float %r

}

define <3 x double> @negative_sign_arg_vec_splat(<3 x double> %x) {

; CHECK-LABEL: @negative_sign_arg_vec_splat(

; CHECK-NEXT:    [[R:%.*]] = call fast <3 x double> @llvm.copysign.v3f64(<3 x double> [[X:%.*]], <3 x double> <double -4.200000e+01, double -4.200000e+01, double -4.200000e+01>)

; CHECK-NEXT:    ret <3 x double> [[R]]

;

  %r = call fast <3 x double> @llvm.copysign.v3f64(<3 x double> %x, <3 x double> <double -42.0, double -42.0, double -42.0>)

  ret <3 x double> %r

}