1; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=simd128 | FileCheck %s --check-prefixes CHECK
2
3target triple = "wasm32-unknown-unknown"
4
5; Test that BUILD_PAIR dag nodes are correctly lowered.
6; This code produces a selection DAG like the following:
7
8;    t0: ch = EntryToken
9;  t3: v4i32,ch = load<(load 16 from `<4 x i32>* undef`)> t0, undef:i32, undef:i32
10;        t30: i32 = extract_vector_elt t3, Constant:i32<2>
11;        t28: i32 = extract_vector_elt t3, Constant:i32<3>
12;      t24: i64 = build_pair t30, t28
13;    t8: ch = store<(store 8 into `i64* undef`, align 1)> t3:1, t24, undef:i32, undef:i32
14;  t9: ch = WebAssemblyISD::RETURN t8
15
16; CHECK:      v128.store64_lane
17define void @build_pair_i32s() {
18entry:
19  %0 = load <4 x i32>, <4 x i32>* undef, align 16
20  %shuffle.i184 = shufflevector <4 x i32> %0, <4 x i32> undef, <4 x i32> <i32 2, i32 3, i32 undef, i32 undef>
21  %bc357 = bitcast <4 x i32> %shuffle.i184 to <2 x i64>
22  %1 = extractelement <2 x i64> %bc357, i32 0
23  store i64 %1, i64* undef, align 1
24  ret void
25}
26