llvm/test/Transforms/InstCombine/scalable-trunc.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -instcombine -S < %s | FileCheck %s

define void @trunc_nxv2i64_to_nxv2i32(i32* %ptr, <vscale x 4 x i32> %v) {
; CHECK-LABEL: @trunc_nxv2i64_to_nxv2i32(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[TMP0:%.*]] = call <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 31)
; CHECK-NEXT:    [[TMP1:%.*]] = bitcast <vscale x 4 x i32> [[V:%.*]] to <vscale x 2 x i64>
; CHECK-NEXT:    [[TMP2:%.*]] = call <vscale x 2 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv2i1(<vscale x 16 x i1> [[TMP0]])
; CHECK-NEXT:    [[TMP3:%.*]] = trunc <vscale x 2 x i64> [[TMP1]] to <vscale x 2 x i32>
; CHECK-NEXT:    call void @llvm.aarch64.sve.st1.nxv2i32(<vscale x 2 x i32> [[TMP3]], <vscale x 2 x i1> [[TMP2]], i32* [[PTR:%.*]])
; CHECK-NEXT:    ret void
;
entry:
  %0 = call <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 31)
  %1 = bitcast <vscale x 4 x i32> %v to <vscale x 2 x i64>
  %2 = call <vscale x 2 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv2i1(<vscale x 16 x i1> %0)
  %3 = trunc <vscale x 2 x i64> %1 to <vscale x 2 x i32>
  call void @llvm.aarch64.sve.st1.nxv2i32(<vscale x 2 x i32> %3, <vscale x 2 x i1> %2, i32* %ptr)
  ret void
}

declare void @llvm.aarch64.sve.st1.nxv2i32(<vscale x 2 x i32>, <vscale x 2 x i1>, i32*)
declare <vscale x 2 x i1> @llvm.aarch64.sve.convert.from.svbool.nxv2i1(<vscale x 16 x i1>)
declare <vscale x 16 x i1> @llvm.aarch64.sve.ptrue.nxv16i1(i32 %pattern)