llvm/test/CodeGen/Thumb2/mve-gather-unused.ll

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=thumbv8.1m.main-none-none-eabi -mattr=+mve.fp -enable-arm-maskedldst %s -o - | FileCheck %s

; This files has some unused gathers, making sure that they do not cause
; problems as the function gets simplified.

define arm_aapcs_vfpcc void @unused1(<4 x i32*> %offs) {
; CHECK-LABEL: unused1:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    bx lr
entry:
  %gather = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> %offs, i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> undef)
  ret void
}

define arm_aapcs_vfpcc void @unused2(<4 x i32*> %offs) {
; CHECK-LABEL: unused2:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    bx lr
entry:
  %gather1 = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> %offs, i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> undef)
  %gather2 = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> %offs, i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> undef)
  ret void
}

define arm_aapcs_vfpcc void @unused2_used(<4 x i32*> %offs) {
; CHECK-LABEL: unused2_used:
; CHECK:       @ %bb.0: @ %entry
; CHECK-NEXT:    bx lr
entry:
  %gather1 = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> %offs, i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> undef)
  %gather2 = call <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*> %offs, i32 4, <4 x i1> <i1 true, i1 true, i1 true, i1 true>, <4 x i32> undef)
  %unused = add <4 x i32> %gather1, %gather2
  ret void
}


declare <4 x i32> @llvm.masked.gather.v4i32.v4p0i32(<4 x i32*>, i32, <4 x i1>, <4 x i32>)