File: scatter-schedule.ll

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llvm-toolchain-15 1%3A15.0.6-4
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mcpu=skx < %s | FileCheck %s

target triple = "x86_64-unknown-linux-gnu"

; This test checks the order of scatter operations after split.
; The right order is "from LSB to MSB", otherwise the semantic is broken.

define void @test(i64 %x272, <16 x ptr> %x335, <16 x i32> %x270) {
; CHECK-LABEL: test:
; CHECK:       # %bb.0:
; CHECK-NEXT:    kxnorw %k0, %k0, %k1
; CHECK-NEXT:    kxnorw %k0, %k0, %k2
; CHECK-NEXT:    vpscatterqd %ymm2, (,%zmm0) {%k2}
; CHECK-NEXT:    vextracti64x4 $1, %zmm2, %ymm0
; CHECK-NEXT:    vpscatterqd %ymm0, (,%zmm1) {%k1}
; CHECK-NEXT:    vzeroupper
; CHECK-NEXT:    retq
  call void @llvm.masked.scatter.v16i32.v16p0(<16 x i32> %x270, <16 x ptr> %x335, i32 4, <16 x i1> <i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true, i1 true>)
  ret void
}
declare void @llvm.masked.scatter.v16i32.v16p0(<16 x i32> , <16 x ptr> , i32, <16 x i1> )