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 2 3; Test that a splat shuffle of an fp-to-int bitcasted vector correctly 4; optimizes and lowers to a single splat instruction. 5 6target triple = "wasm32-unknown-unknown" 7 8; CHECK-LABEL: f32x4_splat: 9; CHECK-NEXT: .functype f32x4_splat (f32) -> (v128){{$}} 10; CHECK-NEXT: f32x4.splat $push[[R:[0-9]+]]=, $0{{$}} 11; CHECK-NEXT: return $pop[[R]]{{$}} 12define <4 x i32> @f32x4_splat(float %x) { 13 %vecinit = insertelement <4 x float> undef, float %x, i32 0 14 %a = bitcast <4 x float> %vecinit to <4 x i32> 15 %b = shufflevector <4 x i32> %a, <4 x i32> undef, <4 x i32> zeroinitializer 16 ret <4 x i32> %b 17} 18 19; CHECK-LABEL: i2x2_splat: 20; CHECK-NEXT: .functype i2x2_splat (i32) -> (v128){{$}} 21define <2 x i2> @i2x2_splat(i1 %x) { 22 %vecinit = insertelement <4 x i1> undef, i1 %x, i32 0 23 %a = bitcast <4 x i1> %vecinit to <2 x i2> 24 %b = shufflevector <2 x i2> %a, <2 x i2> undef, <2 x i32> zeroinitializer 25 ret <2 x i2> %b 26} 27 28; CHECK-LABEL: not_a_vec: 29; CHECK-NEXT: .functype not_a_vec (i64, i64) -> (v128){{$}} 30; CHECK-NEXT: i32.wrap_i64 $push[[L:[0-9]+]]=, $0 31; CHECK-NEXT: i32x4.splat $push[[R:[0-9]+]]=, $pop[[L]] 32; CHECK-NEXT: return $pop[[R]] 33define <4 x i32> @not_a_vec(i128 %x) { 34 %a = bitcast i128 %x to <4 x i32> 35 %b = shufflevector <4 x i32> %a, <4 x i32> undef, <4 x i32> zeroinitializer 36 ret <4 x i32> %b 37} 38