llvm/test/CodeGen/Thumb2/ifcvt-neon-deprecated.mir

# RUN: llc -mtriple=thumbv7 -start-before=if-converter %s -o - | FileCheck %s

--- |
  ; ModuleID = 'vdup-test.ll'
  source_filename = "vdup-test.ll"
  target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
  target triple = "thumbv7"
  
  define arm_aapcs_vfpcc <2 x i32> @NeonVdupMul(i32 %scalar, i32 %N, <2 x i32> %vector) {
  entry:
    %cmp = icmp ne i32 %N, 0
    %broadcast = insertelement <2 x i32> undef, i32 %scalar, i32 0
    %dup = shufflevector <2 x i32> %broadcast, <2 x i32> undef, <2 x i32> zeroinitializer
    %mul = mul <2 x i32> %dup, %vector
    br i1 %cmp, label %select.end, label %select.false
  
  select.false:                                     ; preds = %entry
    br label %select.end
  
  select.end:                                       ; preds = %entry, %select.false
    %res = phi <2 x i32> [ %mul, %entry ], [ %vector, %select.false ]
    ret <2 x i32> %res
  }

...
---
name:            NeonVdupMul
alignment:       2
exposesReturnsTwice: false
legalized:       false
regBankSelected: false
selected:        false
failedISel:      false
tracksRegLiveness: true
hasWinCFI:       false
registers:       []
liveins:
  - { reg: '$r0', virtual-reg: '' }
  - { reg: '$r1', virtual-reg: '' }
  - { reg: '$d0', virtual-reg: '' }
frameInfo:
  isFrameAddressTaken: false
  isReturnAddressTaken: false
  hasStackMap:     false
  hasPatchPoint:   false
  stackSize:       0
  offsetAdjustment: 0
  maxAlignment:    1
  adjustsStack:    false
  hasCalls:        false
  stackProtector:  ''
  maxCallFrameSize: 0
  cvBytesOfCalleeSavedRegisters: 0
  hasOpaqueSPAdjustment: false
  hasVAStart:      false
  hasMustTailInVarArgFunc: false
  localFrameSize:  0
  savePoint:       ''
  restorePoint:    ''
fixedStack:      []
stack:           []
callSites:       []
constants:       []
machineFunctionInfo: {}
body:             |
  bb.0.entry:
    successors: %bb.1(0x50000000), %bb.2(0x30000000)
    liveins: $d0, $r0, $r1
  
    t2CMPri killed renamable $r1, 0, 14, $noreg, implicit-def $cpsr
    t2Bcc %bb.2, 0, killed $cpsr
  
  bb.1:
    successors: %bb.2(0x80000000)
    liveins: $d0, $r0
  
    renamable $d16 = VDUP32d killed renamable $r0, 14, $noreg
    ; Verify that the neon instructions haven't been conditionalized:
    ; CHECK-LABEL: NeonVdupMul
    ; CHECK: vdup.32
    ; CHECK: vmul.i32
    renamable $d0 = VMULv2i32 killed renamable $d16, killed renamable $d0, 14, $noreg
  
  bb.2.select.end:
    liveins: $d0
  
    tBX_RET 14, $noreg, implicit $d0

...