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llvm-mirror/test/CodeGen/WebAssembly/simd-shuffle-bitcast.ll
Thomas Lively 81bb5f99ad [WebAssembly] Remove datalayout strings from llc tests
The data layout strings do not have any effect on llc tests and will become
misleadingly out of date as we continue to update the canonical data layout, so
remove them from the tests.

Differential Revision: https://reviews.llvm.org/D105842
2021-07-14 11:17:08 -07:00

30 lines
1.2 KiB
LLVM

; RUN: llc < %s -asm-verbose=false -verify-machineinstrs -disable-wasm-fallthrough-return-opt -wasm-disable-explicit-locals -wasm-keep-registers -mattr=+simd128 | FileCheck %s
; Test that a splat shuffle of an fp-to-int bitcasted vector correctly
; optimizes and lowers to a single splat instruction. Without a custom
; DAG combine, this ends up doing both a splat and a shuffle.
target triple = "wasm32-unknown-unknown"
; CHECK-LABEL: f32x4_splat:
; CHECK-NEXT: .functype f32x4_splat (f32) -> (v128){{$}}
; CHECK-NEXT: f32x4.splat $push[[R:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: return $pop[[R]]{{$}}
define <4 x i32> @f32x4_splat(float %x) {
%vecinit = insertelement <4 x float> undef, float %x, i32 0
%a = bitcast <4 x float> %vecinit to <4 x i32>
%b = shufflevector <4 x i32> %a, <4 x i32> undef, <4 x i32> zeroinitializer
ret <4 x i32> %b
}
; CHECK-LABEL: not_a_vec:
; CHECK-NEXT: .functype not_a_vec (i64, i64) -> (v128){{$}}
; CHECK-NEXT: i64x2.splat $push[[L1:[0-9]+]]=, $0{{$}}
; CHECK-NEXT: i8x16.shuffle $push[[R:[0-9]+]]=, $pop[[L1]], $2, 0, 1, 2, 3
; CHECK-NEXT: return $pop[[R]]
define <4 x i32> @not_a_vec(i128 %x) {
%a = bitcast i128 %x to <4 x i32>
%b = shufflevector <4 x i32> %a, <4 x i32> undef, <4 x i32> zeroinitializer
ret <4 x i32> %b
}