llvm/test/Transforms/LoopVectorize/X86/cleanup-runtime-checks.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 6
; RUN: opt -p loop-vectorize -S %s | FileCheck %s

target triple = "x86_64-unknown-linux-gnu"

declare ptr @get()
declare i1 @cond()

; Make sure we can clean up the created runtime checks, if vectorization isn't
; profitable.
define void @widget(i32 %arg, i64 %arg1, ptr %src) #0 {
; CHECK-LABEL: define void @widget(
; CHECK-SAME: i32 [[ARG:%.*]], i64 [[ARG1:%.*]], ptr [[SRC:%.*]]) #[[ATTR0:[0-9]+]] {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    br label %[[LOOP_1_HEADER:.*]]
; CHECK:       [[LOOP_1_HEADER]]:
; CHECK-NEXT:    br label %[[INNER_1:.*]]
; CHECK:       [[INNER_1]]:
; CHECK-NEXT:    [[C_1:%.*]] = call i1 @cond()
; CHECK-NEXT:    br i1 [[C_1]], label %[[INNER_2:.*]], label %[[INNER_1]]
; CHECK:       [[INNER_2]]:
; CHECK-NEXT:    [[LOAD:%.*]] = call ptr @get()
; CHECK-NEXT:    [[C_2:%.*]] = call i1 @cond()
; CHECK-NEXT:    br i1 [[C_2]], label %[[LOOP_2_PREHEADER:.*]], label %[[LOOP_1_LATCH:.*]]
; CHECK:       [[LOOP_2_PREHEADER]]:
; CHECK-NEXT:    br label %[[LOOP_2:.*]]
; CHECK:       [[LOOP_1_LATCH]]:
; CHECK-NEXT:    br label %[[LOOP_1_HEADER]]
; CHECK:       [[LOOP_2]]:
; CHECK-NEXT:    [[IV:%.*]] = phi i32 [ [[IV_NEXT:%.*]], %[[LOOP_2]] ], [ [[ARG]], %[[LOOP_2_PREHEADER]] ]
; CHECK-NEXT:    [[PHI8:%.*]] = phi i32 [ [[OR:%.*]], %[[LOOP_2]] ], [ 99, %[[LOOP_2_PREHEADER]] ]
; CHECK-NEXT:    [[GEP_SRC:%.*]] = getelementptr i32, ptr [[SRC]], i32 [[IV]]
; CHECK-NEXT:    [[L:%.*]] = load i32, ptr [[GEP_SRC]], align 4
; CHECK-NEXT:    [[OR]] = or i32 [[PHI8]], [[L]]
; CHECK-NEXT:    store i32 [[OR]], ptr [[LOAD]], align 4
; CHECK-NEXT:    [[IV_NEXT]] = add i32 [[IV]], 1
; CHECK-NEXT:    [[EC:%.*]] = icmp eq i32 [[IV]], 100
; CHECK-NEXT:    br i1 [[EC]], label %[[EXIT:.*]], label %[[LOOP_2]], !prof [[PROF0:![0-9]+]]
; CHECK:       [[EXIT]]:
; CHECK-NEXT:    ret void
;
entry:
  br label %loop.1.header

loop.1.header:
  br label %inner.1

inner.1:
  %c.1 = call i1 @cond()
  br i1 %c.1, label %inner.2, label %inner.1

inner.2:
  %load = call ptr @get()
  %c.2 = call i1 @cond()
  br i1 %c.2, label %loop.2, label %loop.1.latch

loop.1.latch:
  br label %loop.1.header

loop.2:
  %iv = phi i32 [ %arg, %inner.2 ], [ %iv.next, %loop.2 ]
  %phi8 = phi i32 [ 99, %inner.2 ], [ %or, %loop.2 ]
  %gep.src = getelementptr i32, ptr  %src, i32 %iv
  %l = load i32, ptr %gep.src, align 4
  %or = or i32 %phi8, %l
  store i32 %or, ptr %load, align 4
  %iv.next = add i32 %iv, 1
  %ec = icmp eq i32 %iv, 100
  br i1 %ec, label %exit, label %loop.2, !prof !0

exit:
  ret void
}

attributes #0 = { "target-features"="+avx2" }
!0 = !{!"branch_weights", i32 89478484, i32 1879048192}
;.
; CHECK: [[PROF0]] = !{!"branch_weights", i32 89478484, i32 1879048192}
;.