test/Transforms/LICM/hoist-speculatable-load.ll

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

define void @f(i32 %ptr_i, ptr %ptr2, i1 %cond) {
; CHECK-LABEL: @f(
; CHECK-NEXT:  entry:
; CHECK-NEXT:    [[PTR:%.*]] = inttoptr i32 [[PTR_I:%.*]] to ptr
; CHECK-NEXT:    call void @llvm.assume(i1 true) [ "align"(ptr [[PTR]], i32 16), "dereferenceable"(ptr [[PTR]], i32 16) ]
; CHECK-NEXT:    br i1 [[COND:%.*]], label [[FOR_BODY_LR_PH:%.*]], label [[IF0:%.*]]
; CHECK:       if0:
; CHECK-NEXT:    store i32 0, ptr [[PTR2:%.*]], align 4
; CHECK-NEXT:    br label [[FOR_BODY_LR_PH]]
; CHECK:       for.body.lr.ph:
; CHECK-NEXT:    [[TMP0:%.*]] = load i32, ptr [[PTR]], align 4
; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
; CHECK:       for.body:
; CHECK-NEXT:    [[I_08:%.*]] = phi i32 [ 0, [[FOR_BODY_LR_PH]] ], [ [[INC:%.*]], [[IF_END:%.*]] ]
; CHECK-NEXT:    br i1 [[COND]], label [[IF_END]], label [[IF:%.*]]
; CHECK:       if:
; CHECK-NEXT:    store i32 [[TMP0]], ptr [[PTR2]], align 4
; CHECK-NEXT:    br label [[IF_END]]
; CHECK:       if.end:
; CHECK-NEXT:    [[INC]] = add nuw nsw i32 [[I_08]], 1
; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[INC]], 2
; CHECK-NEXT:    br i1 [[CMP]], label [[FOR_BODY]], label [[EXIT:%.*]]
; CHECK:       exit:
; CHECK-NEXT:    ret void
;
entry:
  %ptr = inttoptr i32 %ptr_i to ptr
  call void @llvm.assume(i1 true) [ "align"(ptr %ptr, i32 16), "dereferenceable"(ptr %ptr, i32 16) ]
  br i1 %cond, label %for.body.lr.ph, label %if0

if0:
  store i32 0, ptr %ptr2, align 4
  br label %for.body.lr.ph

for.body.lr.ph:                                   ; preds = %entry
  br label %for.body

for.body:                                         ; preds = %for.body.lr.ph, %if.end
  %i.08 = phi i32 [ 0, %for.body.lr.ph ], [ %inc, %if.end ]
  br i1 %cond, label %if.end, label %if

if:
  %0 = load i32, ptr %ptr, align 4, !invariant.load !{}
  store i32 %0, ptr %ptr2, align 4
  br label %if.end

if.end:                                           ; preds = %for.body
  %inc = add nuw nsw i32 %i.08, 1
  %cmp = icmp slt i32 %inc, 2
  br i1 %cmp, label %for.body, label %exit

exit:                                         ; preds = %if.end, %entry
  ret void
}

declare void @llvm.assume(i1 noundef)