llvm/test/Transforms/SCCP/vector-bitcast.ll

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

target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64-f80:128:128-n8:16:32-S128"

; rdar://11324230

declare void @use(i1)

define void @foo(<2 x i64>* %p) nounwind {
; CHECK-LABEL: @foo(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br label [[WHILE_BODY_I:%.*]]
; CHECK:       while.body.i:
; CHECK-NEXT:    [[VWORKEXPONENT_I_033:%.*]] = phi <4 x i32> [ [[SUB_I_I:%.*]], [[WHILE_BODY_I]] ], [ <i32 939524096, i32 939524096, i32 939524096, i32 939524096>, [[ENTRY:%.*]] ]
; CHECK-NEXT:    [[SUB_I_I]] = add <4 x i32> [[VWORKEXPONENT_I_033]], <i32 -8388608, i32 -8388608, i32 -8388608, i32 -8388608>
; CHECK-NEXT:    [[TMP0:%.*]] = bitcast <4 x i32> [[SUB_I_I]] to <2 x i64>
; CHECK-NEXT:    store volatile <2 x i64> zeroinitializer, <2 x i64>* [[P:%.*]], align 16
; CHECK-NEXT:    br label [[WHILE_BODY_I]]
;
entry:
  br label %while.body.i

while.body.i:                                     ; preds = %while.body.i, %entry
  %vWorkExponent.i.033 = phi <4 x i32> [ %sub.i.i, %while.body.i ], [ <i32 939524096, i32 939524096, i32 939524096, i32 939524096>, %entry ]
  %sub.i.i = add <4 x i32> %vWorkExponent.i.033, <i32 -8388608, i32 -8388608, i32 -8388608, i32 -8388608>
  %0 = bitcast <4 x i32> %sub.i.i to <2 x i64>
  %and.i119.i = and <2 x i64> %0, zeroinitializer
  store volatile <2 x i64> %and.i119.i, <2 x i64>* %p
  br label %while.body.i
}

%union.V512 = type { <16 x float> }

@i8_mix = dso_local global %union.V512 zeroinitializer
declare <64 x i8> @llvm.abs.v64i8(<64 x i8>, i1 immarg)

; Test for PR47991.
define void @vec_cast_abs() {
; CHECK-LABEL: @vec_cast_abs(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[TMP1:%.*]] = load <64 x i8>, <64 x i8>* bitcast (%union.V512* @i8_mix to <64 x i8>*), align 64
; CHECK-NEXT:    [[TMP2:%.*]] = tail call <64 x i8> @llvm.abs.v64i8(<64 x i8> [[TMP1]], i1 false)
; CHECK-NEXT:    [[TMP3:%.*]] = bitcast <64 x i8> [[TMP2]] to i512
; CHECK-NEXT:    [[CMP_1:%.*]] = icmp eq i512 [[TMP3]], 12
; CHECK-NEXT:    call void @use(i1 [[CMP_1]])
; CHECK-NEXT:    [[CMP_2:%.*]] = icmp ult i512 [[TMP3]], 500
; CHECK-NEXT:    call void @use(i1 [[CMP_2]])
; CHECK-NEXT:    [[TMP4:%.*]] = trunc i512 [[TMP3]] to i32
; CHECK-NEXT:    [[CMP_3:%.*]] = icmp eq i32 [[TMP4]], 12
; CHECK-NEXT:    call void @use(i1 [[CMP_3]])
; CHECK-NEXT:    [[CMP_4:%.*]] = icmp ult i32 [[TMP4]], 500
; CHECK-NEXT:    call void @use(i1 [[CMP_3]])
; CHECK-NEXT:    ret void
;
entry:
  %tmp1 = load <64 x i8>, <64 x i8>* bitcast (%union.V512* @i8_mix to <64 x i8>*)
  %tmp2 = tail call <64 x i8> @llvm.abs.v64i8(<64 x i8> %tmp1, i1 false)

  %tmp3 = bitcast <64 x i8> %tmp2 to i512
  %cmp.1 = icmp eq i512 %tmp3, 12
  call void @use(i1 %cmp.1)
  %cmp.2 = icmp ult i512 %tmp3, 500
  call void @use(i1 %cmp.2)

  %tmp4 = trunc i512 %tmp3 to i32
  %cmp.3 = icmp eq i32 %tmp4, 12
  call void @use(i1 %cmp.3)
  %cmp.4 = icmp ult i32 %tmp4, 500
  call void @use(i1 %cmp.3)

  ret void
}