llvm/test/Transforms/LoopVectorize/scev-check-unknown-prof.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --filter "br i1|= select |!prof|!llvm.loop|^.*:" --version 6
; RUN: opt -passes=loop-vectorize -force-vector-width=4 -force-vector-interleave=1 -S %s | FileCheck %s

@a = common global [250 x i32] zeroinitializer, align 16

define void @wrap_check(i32 %n, i32 %step) !prof !0 {
; CHECK-LABEL: define void @wrap_check(
; CHECK-SAME: i32 [[N:%.*]], i32 [[STEP:%.*]]) !prof [[PROF0:![0-9]+]] {
; CHECK:  [[ENTRY:.*:]]
; CHECK:    br i1 [[POS:%.*]], label %[[LOOP_PREHEADER:.*]], label %[[EXIT:.*]]
; CHECK:  [[LOOP_PREHEADER]]:
; CHECK:    br i1 [[MIN_ITERS_CHECK:%.*]], label %[[SCALAR_PH:.*]], label %[[VECTOR_SCEVCHECK:.*]]
; CHECK:  [[VECTOR_SCEVCHECK]]:
; CHECK:    [[TMP4:%.*]] = select i1 [[TMP3:%.*]], i8 [[TMP2:%.*]], i8 [[TMP1:%.*]], !prof [[PROF1:![0-9]+]]
; CHECK:    [[TMP9:%.*]] = select i1 [[TMP3]], i1 [[TMP8:%.*]], i1 [[TMP7:%.*]], !prof [[PROF1]]
; CHECK:    br i1 [[TMP16:%.*]], label %[[SCALAR_PH]], label %[[VECTOR_PH:.*]]
; CHECK:  [[VECTOR_PH]]:
; CHECK:  [[VECTOR_BODY:.*]]:
; CHECK:    br i1 [[TMP23:%.*]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]]
; CHECK:  [[MIDDLE_BLOCK]]:
; CHECK:    br i1 [[CMP_N:%.*]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
; CHECK:  [[SCALAR_PH]]:
; CHECK:  [[LOOP:.*]]:
; CHECK:    br i1 [[EC:%.*]], label %[[EXIT_LOOPEXIT]], label %[[LOOP]], !llvm.loop [[LOOP5:![0-9]+]]
; CHECK:  [[EXIT_LOOPEXIT]]:
; CHECK:  [[EXIT]]:
;
entry:
  %pos = icmp sgt i32 %n, 0
  br i1 %pos, label %loop.preheader, label %exit

loop.preheader:
  %wide.trip.count = zext i32 %n to i64
  br label %loop

loop:
  %iv = phi i64 [ %iv.next, %loop ], [ 0, %loop.preheader ]
  %p = phi i32 [ %add, %loop ], [ 0, %loop.preheader ]
  %sext = shl i32 %p, 24
  %conv = ashr exact i32 %sext, 24
  %gep = getelementptr inbounds [250 x i32], ptr @a, i64 0, i64 %iv
  store i32 %conv, ptr %gep, align 4
  %add = add nsw i32 %conv, %step
  %iv.next = add nuw nsw i64 %iv, 1
  %ec = icmp eq i64 %iv.next, %wide.trip.count
  br i1 %ec, label %exit, label %loop

exit:
  ret void
}

define void @runtime_step_memcheck(ptr %in, ptr %out, i64 %n, i64 %step) !prof !0 {
; CHECK-LABEL: define void @runtime_step_memcheck(
; CHECK-SAME: ptr [[IN:%.*]], ptr [[OUT:%.*]], i64 [[N:%.*]], i64 [[STEP:%.*]]) !prof [[PROF0]] {
; CHECK:  [[ENTRY:.*:]]
; CHECK:    br i1 [[EMPTY:%.*]], label %[[EXIT:.*]], label %[[LOOP_PREHEADER:.*]]
; CHECK:  [[LOOP_PREHEADER]]:
; CHECK:    br i1 [[MIN_ITERS_CHECK:%.*]], label %[[SCALAR_PH:.*]], label %[[VECTOR_SCEVCHECK:.*]]
; CHECK:  [[VECTOR_SCEVCHECK]]:
; CHECK:    [[TMP4:%.*]] = select i1 [[TMP3:%.*]], i32 [[TMP2:%.*]], i32 [[TMP1:%.*]], !prof [[PROF1]]
; CHECK:    [[TMP9:%.*]] = select i1 [[TMP3]], i1 [[TMP8:%.*]], i1 [[TMP7:%.*]], !prof [[PROF1]]
; CHECK:    br i1 [[TMP16:%.*]], label %[[SCALAR_PH]], label %[[VECTOR_MEMCHECK:.*]]
; CHECK:  [[VECTOR_MEMCHECK]]:
; CHECK:    [[TMP26:%.*]] = select i1 [[TMP25:%.*]], ptr [[IN]], ptr [[TMP24:%.*]], !prof [[PROF1]]
; CHECK:    [[TMP28:%.*]] = select i1 [[TMP27:%.*]], ptr [[IN]], ptr [[TMP24]], !prof [[PROF1]]
; CHECK:    br i1 [[FOUND_CONFLICT:%.*]], label %[[SCALAR_PH]], label %[[VECTOR_PH:.*]]
; CHECK:  [[VECTOR_PH]]:
; CHECK:  [[VECTOR_BODY:.*]]:
; CHECK:    br i1 [[TMP52:%.*]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP11:![0-9]+]]
; CHECK:  [[MIDDLE_BLOCK]]:
; CHECK:    br i1 [[CMP_N:%.*]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
; CHECK:  [[SCALAR_PH]]:
; CHECK:  [[LOOP:.*]]:
; CHECK:    br i1 [[EC:%.*]], label %[[EXIT_LOOPEXIT]], label %[[LOOP]], !llvm.loop [[LOOP12:![0-9]+]]
; CHECK:  [[EXIT_LOOPEXIT]]:
; CHECK:  [[EXIT]]:
;
entry:
  %empty = icmp eq i64 %n, 0
  br i1 %empty, label %exit, label %loop.preheader

loop.preheader:
  br label %loop

loop:
  %idx = phi i64 [ 0, %loop.preheader ], [ %add, %loop ]
  %iv = phi i64 [ 0, %loop.preheader ], [ %iv.next, %loop ]
  %sext = shl i64 %idx, 32
  %conv = ashr exact i64 %sext, 32
  %gep.in = getelementptr inbounds i32, ptr %in, i64 %conv
  %l = load i32, ptr %gep.in, align 4
  %gep.out = getelementptr inbounds i32, ptr %out, i64 %iv
  store i32 %l, ptr %gep.out, align 4
  %add = add i64 %conv, %step
  %iv.next = add nuw i64 %iv, 1
  %ec = icmp eq i64 %iv.next, %n
  br i1 %ec, label %exit, label %loop

exit:
  ret void
}

define void @wrap_check_not_profiled(i32 %n, i32 %step) {
; CHECK-LABEL: define void @wrap_check_not_profiled(
; CHECK-SAME: i32 [[N:%.*]], i32 [[STEP:%.*]]) {
; CHECK:  [[ENTRY:.*:]]
; CHECK:    br i1 [[POS:%.*]], label %[[LOOP_PREHEADER:.*]], label %[[EXIT:.*]]
; CHECK:  [[LOOP_PREHEADER]]:
; CHECK:    br i1 [[MIN_ITERS_CHECK:%.*]], label %[[SCALAR_PH:.*]], label %[[VECTOR_SCEVCHECK:.*]]
; CHECK:  [[VECTOR_SCEVCHECK]]:
; CHECK:    [[TMP4:%.*]] = select i1 [[TMP3:%.*]], i8 [[TMP2:%.*]], i8 [[TMP1:%.*]]
; CHECK:    [[TMP9:%.*]] = select i1 [[TMP3]], i1 [[TMP8:%.*]], i1 [[TMP7:%.*]]
; CHECK:    br i1 [[TMP16:%.*]], label %[[SCALAR_PH]], label %[[VECTOR_PH:.*]]
; CHECK:  [[VECTOR_PH]]:
; CHECK:  [[VECTOR_BODY:.*]]:
; CHECK:    br i1 [[TMP23:%.*]], label %[[MIDDLE_BLOCK:.*]], label %[[VECTOR_BODY]], !llvm.loop [[LOOP13:![0-9]+]]
; CHECK:  [[MIDDLE_BLOCK]]:
; CHECK:    br i1 [[CMP_N:%.*]], label %[[EXIT_LOOPEXIT:.*]], label %[[SCALAR_PH]]
; CHECK:  [[SCALAR_PH]]:
; CHECK:  [[LOOP:.*]]:
; CHECK:    br i1 [[EC:%.*]], label %[[EXIT_LOOPEXIT]], label %[[LOOP]], !llvm.loop [[LOOP14:![0-9]+]]
; CHECK:  [[EXIT_LOOPEXIT]]:
; CHECK:  [[EXIT]]:
;
entry:
  %pos = icmp sgt i32 %n, 0
  br i1 %pos, label %loop.preheader, label %exit

loop.preheader:
  %wide.trip.count = zext i32 %n to i64
  br label %loop

loop:
  %iv = phi i64 [ %iv.next, %loop ], [ 0, %loop.preheader ]
  %p = phi i32 [ %add, %loop ], [ 0, %loop.preheader ]
  %sext = shl i32 %p, 24
  %conv = ashr exact i32 %sext, 24
  %gep = getelementptr inbounds [250 x i32], ptr @a, i64 0, i64 %iv
  store i32 %conv, ptr %gep, align 4
  %add = add nsw i32 %conv, %step
  %iv.next = add nuw nsw i64 %iv, 1
  %ec = icmp eq i64 %iv.next, %wide.trip.count
  br i1 %ec, label %exit, label %loop

exit:
  ret void
}

!0 = !{!"function_entry_count", i64 1000}
;.
; CHECK: [[PROF0]] = !{!"function_entry_count", i64 1000}
; CHECK: [[PROF1]] = !{!"unknown", !"scev-expander"}
; CHECK: [[LOOP2]] = distinct !{[[LOOP2]], [[META3:![0-9]+]], [[META4:![0-9]+]]}
; CHECK: [[META3]] = !{!"llvm.loop.isvectorized", i32 1}
; CHECK: [[META4]] = !{!"llvm.loop.unroll.runtime.disable"}
; CHECK: [[LOOP5]] = distinct !{[[LOOP5]], [[META3]]}
; CHECK: [[LOOP11]] = distinct !{[[LOOP11]], [[META3]], [[META4]]}
; CHECK: [[LOOP12]] = distinct !{[[LOOP12]], [[META3]]}
; CHECK: [[LOOP13]] = distinct !{[[LOOP13]], [[META3]], [[META4]]}
; CHECK: [[LOOP14]] = distinct !{[[LOOP14]], [[META3]]}
;.