; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=aarch64-none-linux-gnu | FileCheck %s --check-prefixes=CHECK,CHECK-SD
; RUN: llc < %s -mtriple=aarch64-none-linux-gnu -global-isel -global-isel-abort=2 2>&1 | FileCheck %s --check-prefixes=CHECK,CHECK-GI

; CHECK-GI:       warning: Instruction selection used fallback path for test_v5f32

declare half @llvm.vector.reduce.fadd.f16.v1f16(half, <1 x half>)
declare float @llvm.vector.reduce.fadd.f32.v1f32(float, <1 x float>)
declare double @llvm.vector.reduce.fadd.f64.v1f64(double, <1 x double>)
declare fp128 @llvm.vector.reduce.fadd.f128.v1f128(fp128, <1 x fp128>)

declare float @llvm.vector.reduce.fadd.f32.v3f32(float, <3 x float>)
declare float @llvm.vector.reduce.fadd.f32.v5f32(float, <5 x float>)
declare fp128 @llvm.vector.reduce.fadd.f128.v2f128(fp128, <2 x fp128>)
declare float @llvm.vector.reduce.fadd.f32.v16f32(float, <16 x float>)

define half @test_v1f16(<1 x half> %a) nounwind {
; CHECK-LABEL: test_v1f16:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ret
  %b = call reassoc half @llvm.vector.reduce.fadd.f16.v1f16(half -0.0, <1 x half> %a)
  ret half %b
}

define float @test_v1f32(<1 x float> %a) nounwind {
; CHECK-SD-LABEL: test_v1f32:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    // kill: def $d0 killed $d0 def $q0
; CHECK-SD-NEXT:    // kill: def $s0 killed $s0 killed $q0
; CHECK-SD-NEXT:    ret
;
; CHECK-GI-LABEL: test_v1f32:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    // kill: def $s0 killed $s0 killed $d0
; CHECK-GI-NEXT:    ret
  %b = call reassoc float @llvm.vector.reduce.fadd.f32.v1f32(float -0.0, <1 x float> %a)
  ret float %b
}

define double @test_v1f64(<1 x double> %a) nounwind {
; CHECK-LABEL: test_v1f64:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ret
  %b = call reassoc double @llvm.vector.reduce.fadd.f64.v1f64(double -0.0, <1 x double> %a)
  ret double %b
}

define fp128 @test_v1f128(<1 x fp128> %a) nounwind {
; CHECK-LABEL: test_v1f128:
; CHECK:       // %bb.0:
; CHECK-NEXT:    ret
  %b = call reassoc fp128 @llvm.vector.reduce.fadd.f128.v1f128(fp128 0xL00000000000000008000000000000000, <1 x fp128> %a)
  ret fp128 %b
}

define float @test_v3f32(<3 x float> %a) nounwind {
; CHECK-LABEL: test_v3f32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    movi v1.2s, #128, lsl #24
; CHECK-NEXT:    mov v0.s[3], v1.s[0]
; CHECK-NEXT:    faddp v0.4s, v0.4s, v0.4s
; CHECK-NEXT:    faddp s0, v0.2s
; CHECK-NEXT:    ret
  %b = call reassoc float @llvm.vector.reduce.fadd.f32.v3f32(float -0.0, <3 x float> %a)
  ret float %b
}

define float @test_v5f32(<5 x float> %a) nounwind {
; CHECK-LABEL: test_v5f32:
; CHECK:       // %bb.0:
; CHECK-NEXT:    // kill: def $s0 killed $s0 def $q0
; CHECK-NEXT:    // kill: def $s1 killed $s1 def $q1
; CHECK-NEXT:    // kill: def $s2 killed $s2 def $q2
; CHECK-NEXT:    movi v5.4s, #128, lsl #24
; CHECK-NEXT:    // kill: def $s4 killed $s4 def $q4
; CHECK-NEXT:    // kill: def $s3 killed $s3 def $q3
; CHECK-NEXT:    mov v0.s[1], v1.s[0]
; CHECK-NEXT:    mov v5.s[0], v4.s[0]
; CHECK-NEXT:    mov v0.s[2], v2.s[0]
; CHECK-NEXT:    mov v0.s[3], v3.s[0]
; CHECK-NEXT:    fadd v0.4s, v0.4s, v5.4s
; CHECK-NEXT:    faddp v0.4s, v0.4s, v0.4s
; CHECK-NEXT:    faddp s0, v0.2s
; CHECK-NEXT:    ret
  %b = call reassoc float @llvm.vector.reduce.fadd.f32.v5f32(float -0.0, <5 x float> %a)
  ret float %b
}

define fp128 @test_v2f128(<2 x fp128> %a) nounwind {
; CHECK-SD-LABEL: test_v2f128:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    b __addtf3
;
; CHECK-GI-LABEL: test_v2f128:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    str x30, [sp, #-16]! // 8-byte Folded Spill
; CHECK-GI-NEXT:    bl __addtf3
; CHECK-GI-NEXT:    ldr x30, [sp], #16 // 8-byte Folded Reload
; CHECK-GI-NEXT:    ret
  %b = call reassoc fp128 @llvm.vector.reduce.fadd.f128.v2f128(fp128 0xL00000000000000008000000000000000, <2 x fp128> %a)
  ret fp128 %b
}

define float @test_v16f32(<16 x float> %a) nounwind {
; CHECK-SD-LABEL: test_v16f32:
; CHECK-SD:       // %bb.0:
; CHECK-SD-NEXT:    fadd v1.4s, v1.4s, v3.4s
; CHECK-SD-NEXT:    fadd v0.4s, v0.4s, v2.4s
; CHECK-SD-NEXT:    fadd v0.4s, v0.4s, v1.4s
; CHECK-SD-NEXT:    faddp v0.4s, v0.4s, v0.4s
; CHECK-SD-NEXT:    faddp s0, v0.2s
; CHECK-SD-NEXT:    ret
;
; CHECK-GI-LABEL: test_v16f32:
; CHECK-GI:       // %bb.0:
; CHECK-GI-NEXT:    fadd v0.4s, v0.4s, v1.4s
; CHECK-GI-NEXT:    fadd v1.4s, v2.4s, v3.4s
; CHECK-GI-NEXT:    fadd v0.4s, v0.4s, v1.4s
; CHECK-GI-NEXT:    faddp v0.4s, v0.4s, v0.4s
; CHECK-GI-NEXT:    faddp s0, v0.2s
; CHECK-GI-NEXT:    ret
  %b = call reassoc float @llvm.vector.reduce.fadd.f32.v16f32(float -0.0, <16 x float> %a)
  ret float %b
}