xref: /llvm-project-15.0.7/llvm/test/CodeGen/WebAssembly/simd-select.ll (revision ecb2e5bc)

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -verify-machineinstrs -mattr=+unimplemented-simd128 | FileCheck %s

; Test that vector selects of various varieties lower correctly.

target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown"

; ==============================================================================
; 16 x i8
; ==============================================================================
define <16 x i8> @vselect_v16i8(<16 x i1> %c, <16 x i8> %x, <16 x i8> %y) {
; CHECK-LABEL: vselect_v16i8:
; CHECK:         .functype vselect_v16i8 (v128, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i32.const 7
; CHECK-NEXT:    i8x16.shl
; CHECK-NEXT:    i32.const 7
; CHECK-NEXT:    i8x16.shr_s
; CHECK-NEXT:    v128.bitselect
; CHECK-NEXT:    # fallthrough-return
  %res = select <16 x i1> %c, <16 x i8> %x, <16 x i8> %y
  ret <16 x i8> %res
}

define <16 x i8> @vselect_cmp_v16i8(<16 x i8> %a, <16 x i8> %b,
; CHECK-LABEL: vselect_cmp_v16i8:
; CHECK:         .functype vselect_cmp_v16i8 (v128, v128, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 3
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    i8x16.lt_s
; CHECK-NEXT:    v128.bitselect
; CHECK-NEXT:    # fallthrough-return
                                    <16 x i8> %x, <16 x i8> %y) {
  %c = icmp slt <16 x i8> %a, %b
  %res = select <16 x i1> %c, <16 x i8> %x, <16 x i8> %y
  ret <16 x i8> %res
}

define <16 x i8> @select_v16i8(i1 zeroext %c, <16 x i8> %x, <16 x i8> %y) {
; CHECK-LABEL: select_v16i8:
; CHECK:         .functype select_v16i8 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %res = select i1 %c, <16 x i8> %x, <16 x i8> %y
  ret <16 x i8> %res
}

define <16 x i8> @select_cmp_v16i8(i32 %i, <16 x i8> %x, <16 x i8> %y) {
; CHECK-LABEL: select_cmp_v16i8:
; CHECK:         .functype select_cmp_v16i8 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i32.const 0
; CHECK-NEXT:    i32.lt_s
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp slt i32 %i, 0
  %res = select i1 %c, <16 x i8> %x, <16 x i8> %y
  ret <16 x i8> %res
}

define <16 x i8> @select_ne_v16i8(i32 %i, <16 x i8> %x, <16 x i8> %y) {
; CHECK-LABEL: select_ne_v16i8:
; CHECK:         .functype select_ne_v16i8 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp ne i32 %i, 0
  %res = select i1 %c, <16 x i8> %x, <16 x i8> %y
  ret <16 x i8> %res
}

define <16 x i8> @select_eq_v16i8(i32 %i, <16 x i8> %x, <16 x i8> %y) {
; CHECK-LABEL: select_eq_v16i8:
; CHECK:         .functype select_eq_v16i8 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp eq i32 %i, 0
  %res = select i1 %c, <16 x i8> %x, <16 x i8> %y
  ret <16 x i8> %res
}

define <8 x i16> @vselect_v8i16(<8 x i1> %c, <8 x i16> %x, <8 x i16> %y) {
; CHECK-LABEL: vselect_v8i16:
; CHECK:         .functype vselect_v8i16 (v128, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i32.const 15
; CHECK-NEXT:    i16x8.shl
; CHECK-NEXT:    i32.const 15
; CHECK-NEXT:    i16x8.shr_s
; CHECK-NEXT:    v128.bitselect
; CHECK-NEXT:    # fallthrough-return
  %res = select <8 x i1> %c, <8 x i16> %x, <8 x i16> %y
  ret <8 x i16> %res
}

define <8 x i16> @vselect_cmp_v8i16(<8 x i16> %a, <8 x i16> %b,
; CHECK-LABEL: vselect_cmp_v8i16:
; CHECK:         .functype vselect_cmp_v8i16 (v128, v128, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 3
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    i16x8.lt_s
; CHECK-NEXT:    v128.bitselect
; CHECK-NEXT:    # fallthrough-return
                                           <8 x i16> %x, <8 x i16> %y) {
  %c = icmp slt <8 x i16> %a, %b
  %res = select <8 x i1> %c, <8 x i16> %x, <8 x i16> %y
  ret <8 x i16> %res
}

define <8 x i16> @select_v8i16(i1 zeroext %c, <8 x i16> %x, <8 x i16> %y) {
; CHECK-LABEL: select_v8i16:
; CHECK:         .functype select_v8i16 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %res = select i1 %c, <8 x i16> %x, <8 x i16> %y
  ret <8 x i16> %res
}

define <8 x i16> @select_cmp_v8i16(i32 %i, <8 x i16> %x, <8 x i16> %y) {
; CHECK-LABEL: select_cmp_v8i16:
; CHECK:         .functype select_cmp_v8i16 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i32.const 0
; CHECK-NEXT:    i32.lt_s
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp slt i32 %i, 0
  %res = select i1 %c, <8 x i16> %x, <8 x i16> %y
  ret <8 x i16> %res
}

define <8 x i16> @select_ne_v8i16(i32 %i, <8 x i16> %x, <8 x i16> %y) {
; CHECK-LABEL: select_ne_v8i16:
; CHECK:         .functype select_ne_v8i16 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp ne i32 %i, 0
  %res = select i1 %c, <8 x i16> %x, <8 x i16> %y
  ret <8 x i16> %res
}

define <8 x i16> @select_eq_v8i16(i32 %i, <8 x i16> %x, <8 x i16> %y) {
; CHECK-LABEL: select_eq_v8i16:
; CHECK:         .functype select_eq_v8i16 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp eq i32 %i, 0
  %res = select i1 %c, <8 x i16> %x, <8 x i16> %y
  ret <8 x i16> %res
}

define <4 x i32> @vselect_v4i32(<4 x i1> %c, <4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: vselect_v4i32:
; CHECK:         .functype vselect_v4i32 (v128, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i32.const 31
; CHECK-NEXT:    i32x4.shl
; CHECK-NEXT:    i32.const 31
; CHECK-NEXT:    i32x4.shr_s
; CHECK-NEXT:    v128.bitselect
; CHECK-NEXT:    # fallthrough-return
  %res = select <4 x i1> %c, <4 x i32> %x, <4 x i32> %y
  ret <4 x i32> %res
}

define <4 x i32> @vselect_cmp_v4i32(<4 x i32> %a, <4 x i32> %b,
; CHECK-LABEL: vselect_cmp_v4i32:
; CHECK:         .functype vselect_cmp_v4i32 (v128, v128, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 3
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    i32x4.lt_s
; CHECK-NEXT:    v128.bitselect
; CHECK-NEXT:    # fallthrough-return
                                    <4 x i32> %x, <4 x i32> %y) {
  %c = icmp slt <4 x i32> %a, %b
  %res = select <4 x i1> %c, <4 x i32> %x, <4 x i32> %y
  ret <4 x i32> %res
}

define <4 x i32> @select_v4i32(i1 zeroext %c, <4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: select_v4i32:
; CHECK:         .functype select_v4i32 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %res = select i1 %c, <4 x i32> %x, <4 x i32> %y
  ret <4 x i32> %res
}

define <4 x i32> @select_cmp_v4i32(i32 %i, <4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: select_cmp_v4i32:
; CHECK:         .functype select_cmp_v4i32 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i32.const 0
; CHECK-NEXT:    i32.lt_s
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp slt i32 %i, 0
  %res = select i1 %c, <4 x i32> %x, <4 x i32> %y
  ret <4 x i32> %res
}

define <4 x i32> @select_ne_v4i32(i32 %i, <4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: select_ne_v4i32:
; CHECK:         .functype select_ne_v4i32 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp ne i32 %i, 0
  %res = select i1 %c, <4 x i32> %x, <4 x i32> %y
  ret <4 x i32> %res
}

define <4 x i32> @select_eq_v4i32(i32 %i, <4 x i32> %x, <4 x i32> %y) {
; CHECK-LABEL: select_eq_v4i32:
; CHECK:         .functype select_eq_v4i32 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp eq i32 %i, 0
  %res = select i1 %c, <4 x i32> %x, <4 x i32> %y
  ret <4 x i32> %res
}

define <2 x i64> @vselect_v2i64(<2 x i1> %c, <2 x i64> %x, <2 x i64> %y) {
; CHECK-LABEL: vselect_v2i64:
; CHECK:         .functype vselect_v2i64 (v128, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i32.const 63
; CHECK-NEXT:    i64x2.shl
; CHECK-NEXT:    i32.const 63
; CHECK-NEXT:    i64x2.shr_s
; CHECK-NEXT:    v128.bitselect
; CHECK-NEXT:    # fallthrough-return
  %res = select <2 x i1> %c, <2 x i64> %x, <2 x i64> %y
  ret <2 x i64> %res
}

define <2 x i64> @vselect_cmp_v2i64(<2 x i64> %a, <2 x i64> %b,
; CHECK-LABEL: vselect_cmp_v2i64:
; CHECK:         .functype vselect_cmp_v2i64 (v128, v128, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 3
; CHECK-NEXT:    i64.const -1
; CHECK-NEXT:    i64.const 0
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i64x2.extract_lane 0
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    i64x2.extract_lane 0
; CHECK-NEXT:    i64.lt_s
; CHECK-NEXT:    i64.select
; CHECK-NEXT:    i64x2.splat
; CHECK-NEXT:    i64.const -1
; CHECK-NEXT:    i64.const 0
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i64x2.extract_lane 1
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    i64x2.extract_lane 1
; CHECK-NEXT:    i64.lt_s
; CHECK-NEXT:    i64.select
; CHECK-NEXT:    i64x2.replace_lane 1
; CHECK-NEXT:    v128.bitselect
; CHECK-NEXT:    # fallthrough-return
                                    <2 x i64> %x, <2 x i64> %y) {
  %c = icmp slt <2 x i64> %a, %b
  %res = select <2 x i1> %c, <2 x i64> %x, <2 x i64> %y
  ret <2 x i64> %res
}

define <2 x i64> @select_v2i64(i1 zeroext %c, <2 x i64> %x, <2 x i64> %y) {
; CHECK-LABEL: select_v2i64:
; CHECK:         .functype select_v2i64 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %res = select i1 %c, <2 x i64> %x, <2 x i64> %y
  ret <2 x i64> %res
}

define <2 x i64> @select_cmp_v2i64(i32 %i, <2 x i64> %x, <2 x i64> %y) {
; CHECK-LABEL: select_cmp_v2i64:
; CHECK:         .functype select_cmp_v2i64 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i32.const 0
; CHECK-NEXT:    i32.lt_s
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp slt i32 %i, 0
  %res = select i1 %c, <2 x i64> %x, <2 x i64> %y
  ret <2 x i64> %res
}

define <2 x i64> @select_ne_v2i64(i32 %i, <2 x i64> %x, <2 x i64> %y) {
; CHECK-LABEL: select_ne_v2i64:
; CHECK:         .functype select_ne_v2i64 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp ne i32 %i, 0
  %res = select i1 %c, <2 x i64> %x, <2 x i64> %y
  ret <2 x i64> %res
}

define <2 x i64> @select_eq_v2i64(i32 %i, <2 x i64> %x, <2 x i64> %y) {
; CHECK-LABEL: select_eq_v2i64:
; CHECK:         .functype select_eq_v2i64 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp eq i32 %i, 0
  %res = select i1 %c, <2 x i64> %x, <2 x i64> %y
  ret <2 x i64> %res
}

define <4 x float> @vselect_v4f32(<4 x i1> %c, <4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: vselect_v4f32:
; CHECK:         .functype vselect_v4f32 (v128, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i32.const 31
; CHECK-NEXT:    i32x4.shl
; CHECK-NEXT:    i32.const 31
; CHECK-NEXT:    i32x4.shr_s
; CHECK-NEXT:    v128.bitselect
; CHECK-NEXT:    # fallthrough-return
  %res = select <4 x i1> %c, <4 x float> %x, <4 x float> %y
  ret <4 x float> %res
}

define <4 x float> @vselect_cmp_v4f32(<4 x float> %a, <4 x float> %b,
; CHECK-LABEL: vselect_cmp_v4f32:
; CHECK:         .functype vselect_cmp_v4f32 (v128, v128, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 3
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    f32x4.lt
; CHECK-NEXT:    v128.bitselect
; CHECK-NEXT:    # fallthrough-return
                                      <4 x float> %x, <4 x float> %y) {
  %c = fcmp olt <4 x float> %a, %b
  %res = select <4 x i1> %c, <4 x float> %x, <4 x float> %y
  ret <4 x float> %res
}

define <4 x float> @select_v4f32(i1 zeroext %c, <4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: select_v4f32:
; CHECK:         .functype select_v4f32 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %res = select i1 %c, <4 x float> %x, <4 x float> %y
  ret <4 x float> %res
}

define <4 x float> @select_cmp_v4f32(i32 %i, <4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: select_cmp_v4f32:
; CHECK:         .functype select_cmp_v4f32 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i32.const 0
; CHECK-NEXT:    i32.lt_s
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp slt i32 %i, 0
  %res = select i1 %c, <4 x float> %x, <4 x float> %y
  ret <4 x float> %res
}

define <4 x float> @select_ne_v4f32(i32 %i, <4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: select_ne_v4f32:
; CHECK:         .functype select_ne_v4f32 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp ne i32 %i, 0
  %res = select i1 %c, <4 x float> %x, <4 x float> %y
  ret <4 x float> %res
}

define <4 x float> @select_eq_v4f32(i32 %i, <4 x float> %x, <4 x float> %y) {
; CHECK-LABEL: select_eq_v4f32:
; CHECK:         .functype select_eq_v4f32 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp eq i32 %i, 0
  %res = select i1 %c, <4 x float> %x, <4 x float> %y
  ret <4 x float> %res
}

define <2 x double> @vselect_v2f64(<2 x i1> %c, <2 x double> %x, <2 x double> %y) {
; CHECK-LABEL: vselect_v2f64:
; CHECK:         .functype vselect_v2f64 (v128, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i32.const 63
; CHECK-NEXT:    i64x2.shl
; CHECK-NEXT:    i32.const 63
; CHECK-NEXT:    i64x2.shr_s
; CHECK-NEXT:    v128.bitselect
; CHECK-NEXT:    # fallthrough-return
  %res = select <2 x i1> %c, <2 x double> %x, <2 x double> %y
  ret <2 x double> %res
}

define <2 x double> @vselect_cmp_v2f64(<2 x double> %a, <2 x double> %b,
; CHECK-LABEL: vselect_cmp_v2f64:
; CHECK:         .functype vselect_cmp_v2f64 (v128, v128, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 3
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    f64x2.lt
; CHECK-NEXT:    v128.bitselect
; CHECK-NEXT:    # fallthrough-return
                                       <2 x double> %x, <2 x double> %y) {
  %c = fcmp olt <2 x double> %a, %b
  %res = select <2 x i1> %c, <2 x double> %x, <2 x double> %y
  ret <2 x double> %res
}

define <2 x double> @select_v2f64(i1 zeroext %c, <2 x double> %x, <2 x double> %y) {
; CHECK-LABEL: select_v2f64:
; CHECK:         .functype select_v2f64 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %res = select i1 %c, <2 x double> %x, <2 x double> %y
  ret <2 x double> %res
}

define <2 x double> @select_cmp_v2f64(i32 %i, <2 x double> %x, <2 x double> %y) {
; CHECK-LABEL: select_cmp_v2f64:
; CHECK:         .functype select_cmp_v2f64 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    i32.const 0
; CHECK-NEXT:    i32.lt_s
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp slt i32 %i, 0
  %res = select i1 %c, <2 x double> %x, <2 x double> %y
  ret <2 x double> %res
}

define <2 x double> @select_ne_v2f64(i32 %i, <2 x double> %x, <2 x double> %y) {
; CHECK-LABEL: select_ne_v2f64:
; CHECK:         .functype select_ne_v2f64 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp ne i32 %i, 0
  %res = select i1 %c, <2 x double> %x, <2 x double> %y
  ret <2 x double> %res
}

define <2 x double> @select_eq_v2f64(i32 %i, <2 x double> %x, <2 x double> %y) {
; CHECK-LABEL: select_eq_v2f64:
; CHECK:         .functype select_eq_v2f64 (i32, v128, v128) -> (v128)
; CHECK-NEXT:  # %bb.0:
; CHECK-NEXT:    local.get 2
; CHECK-NEXT:    local.get 1
; CHECK-NEXT:    local.get 0
; CHECK-NEXT:    v128.select
; CHECK-NEXT:    # fallthrough-return
  %c = icmp eq i32 %i, 0
  %res = select i1 %c, <2 x double> %x, <2 x double> %y
  ret <2 x double> %res
}