llvm/test/Transforms/LoopVectorize/reduction-ptr.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -passes=loop-vectorize -force-vector-width=4 -S | FileCheck %s

target datalayout = "e-m:o-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"

; Reductions of pointer types are not supported.

define void @PR49215(ptr %p, ptr %q) {
; CHECK-LABEL: @PR49215(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
; CHECK:       for.body:
; CHECK-NEXT:    [[IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[IV_NEXT:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT:    [[G:%.*]] = phi ptr [ [[P:%.*]], [[ENTRY]] ], [ [[UMIN:%.*]], [[FOR_BODY]] ]
; CHECK-NEXT:    [[CMP2:%.*]] = icmp ult ptr [[Q:%.*]], [[G]]
; CHECK-NEXT:    [[UMIN]] = select i1 [[CMP2]], ptr [[Q]], ptr [[G]]
; CHECK-NEXT:    [[IV_NEXT]] = add nuw nsw i64 [[IV]], 1
; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[IV_NEXT]], undef
; CHECK-NEXT:    br i1 [[EXITCOND]], label [[LOOPEXIT:%.*]], label [[FOR_BODY]]
; CHECK:       loopexit:
; CHECK-NEXT:    [[UMIN_LCSSA:%.*]] = phi ptr [ [[UMIN]], [[FOR_BODY]] ]
; CHECK-NEXT:    [[PHI_CAST:%.*]] = ptrtoint ptr [[UMIN_LCSSA]] to i64
; CHECK-NEXT:    ret void
;
entry:
  br label %for.body

for.body:
  %iv = phi i64 [ 0, %entry ], [ %iv.next, %for.body ]
  %g = phi ptr [ %p, %entry ], [ %umin, %for.body ]
  %cmp2 = icmp ult ptr %q, %g
  %umin = select i1 %cmp2, ptr %q, ptr %g
  %iv.next = add nuw nsw i64 %iv, 1
  %exitcond = icmp eq i64 %iv.next, undef
  br i1 %exitcond, label %loopexit, label %for.body

loopexit:
  %phi.cast = ptrtoint ptr %umin to i64
  ret void
}