; LLVM IR from moarseniy/CudaFEMproject :: deprecated/Linal2/src/Linal2.ll (ZN7MyArray11dot_productES_)

; Unoptimized IR (clang -disable-llvm-passes):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

%class.MyArray = type { i32, ptr }

@.str.5 = external hidden unnamed_addr constant [91 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [34 x i8], align 1
@__PRETTY_FUNCTION__._ZN7MyArray11dot_productES_ = external hidden unnamed_addr constant [36 x i8], align 1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN7MyArray8get_sizeEv(ptr noundef nonnull align 8 dereferenceable(16)) #1 align 2

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZN7MyArrayixEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) #1 align 2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fmuladd.f32(float, float, float) #3

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef float @_ZN7MyArray11dot_productES_(ptr noundef nonnull align 8 dereferenceable(16) %0, ptr noundef %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca float, align 4
  %6 = alloca i32, align 4
  store ptr %0, ptr %3, align 8, !tbaa !5
  store ptr %1, ptr %4, align 8, !tbaa !5
  %7 = load ptr, ptr %3, align 8
  %8 = getelementptr inbounds %class.MyArray, ptr %7, i32 0, i32 0
  %9 = load i32, ptr %8, align 8, !tbaa !9
  %10 = call noundef i32 @_ZN7MyArray8get_sizeEv(ptr noundef nonnull align 8 dereferenceable(16) %1)
  %11 = icmp eq i32 %9, %10
  br i1 %11, label %12, label %13

12:                                               ; preds = %2
  br label %15

13:                                               ; preds = %2
  call void @__assert_fail(ptr noundef @.str.6, ptr noundef @.str.5, i32 noundef 174, ptr noundef @__PRETTY_FUNCTION__._ZN7MyArray11dot_productES_) #4
  unreachable

14:                                               ; No predecessors!
  br label %15

15:                                               ; preds = %14, %12
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #5
  store float 0.000000e+00, ptr %5, align 4, !tbaa !12
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #5
  store i32 0, ptr %6, align 4, !tbaa !14
  br label %16

16:                                               ; preds = %34, %15
  %17 = load i32, ptr %6, align 4, !tbaa !14
  %18 = getelementptr inbounds %class.MyArray, ptr %7, i32 0, i32 0
  %19 = load i32, ptr %18, align 8, !tbaa !9
  %20 = icmp slt i32 %17, %19
  br i1 %20, label %22, label %21

21:                                               ; preds = %16
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #5
  br label %37

22:                                               ; preds = %16
  %23 = getelementptr inbounds %class.MyArray, ptr %7, i32 0, i32 1
  %24 = load ptr, ptr %23, align 8, !tbaa !15
  %25 = load i32, ptr %6, align 4, !tbaa !14
  %26 = sext i32 %25 to i64
  %27 = getelementptr inbounds float, ptr %24, i64 %26
  %28 = load float, ptr %27, align 4, !tbaa !12
  %29 = load i32, ptr %6, align 4, !tbaa !14
  %30 = call noundef nonnull align 4 dereferenceable(4) ptr @_ZN7MyArrayixEi(ptr noundef nonnull align 8 dereferenceable(16) %1, i32 noundef %29)
  %31 = load float, ptr %30, align 4, !tbaa !12
  %32 = load float, ptr %5, align 4, !tbaa !12
  %33 = call float @llvm.fmuladd.f32(float %28, float %31, float %32)
  store float %33, ptr %5, align 4, !tbaa !12
  br label %34

34:                                               ; preds = %22
  %35 = load i32, ptr %6, align 4, !tbaa !14
  %36 = add nsw i32 %35, 1
  store i32 %36, ptr %6, align 4, !tbaa !14
  br label %16, !llvm.loop !16

37:                                               ; preds = %21
  %38 = load float, ptr %5, align 4, !tbaa !12
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #5
  ret float %38
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #3 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #4 = { noreturn nounwind }
attributes #5 = { nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !6, i64 0}
!6 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !11, i64 0}
!10 = !{!"_ZTS7MyArray", !11, i64 0, !6, i64 8}
!11 = !{!"int", !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"float", !7, i64 0}
!14 = !{!11, !11, i64 0}
!15 = !{!10, !6, i64 8}
!16 = distinct !{!16, !17}
!17 = !{!"llvm.loop.mustprogress"}


; Optimized IR (opt -passes='default<O3>'):
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-i128:128-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"

@.str.5 = external hidden unnamed_addr constant [91 x i8], align 1
@.str.6 = external hidden unnamed_addr constant [34 x i8], align 1
@__PRETTY_FUNCTION__._ZN7MyArray11dot_productES_ = external hidden unnamed_addr constant [36 x i8], align 1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef i32 @_ZN7MyArray8get_sizeEv(ptr noundef nonnull align 8 dereferenceable(16)) local_unnamed_addr #0 align 2

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef nonnull align 4 dereferenceable(4) ptr @_ZN7MyArrayixEi(ptr noundef nonnull align 8 dereferenceable(16), i32 noundef) local_unnamed_addr #0 align 2

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fmuladd.f32(float, float, float) #2

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef float @_ZN7MyArray11dot_productES_(ptr nocapture noundef nonnull readonly align 8 dereferenceable(16) %0, ptr noundef nonnull %1) local_unnamed_addr #0 align 2 {
  %3 = load i32, ptr %0, align 8, !tbaa !5
  %4 = tail call noundef i32 @_ZN7MyArray8get_sizeEv(ptr noundef nonnull align 8 dereferenceable(16) %1)
  %5 = icmp eq i32 %3, %4
  br i1 %5, label %.preheader, label %9

.preheader:                                       ; preds = %2
  %6 = load i32, ptr %0, align 8, !tbaa !5
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %.preheader
  %8 = getelementptr inbounds i8, ptr %0, i64 8
  br label %10

9:                                                ; preds = %2
  tail call void @__assert_fail(ptr noundef nonnull @.str.6, ptr noundef nonnull @.str.5, i32 noundef 174, ptr noundef nonnull @__PRETTY_FUNCTION__._ZN7MyArray11dot_productES_) #3
  unreachable

._crit_edge:                                      ; preds = %10, %.preheader
  %.06.lcssa = phi float [ 0.000000e+00, %.preheader ], [ %17, %10 ]
  ret float %.06.lcssa

10:                                               ; preds = %.lr.ph, %10
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %10 ]
  %.067 = phi float [ 0.000000e+00, %.lr.ph ], [ %17, %10 ]
  %11 = load ptr, ptr %8, align 8, !tbaa !11
  %12 = getelementptr inbounds float, ptr %11, i64 %indvars.iv
  %13 = load float, ptr %12, align 4, !tbaa !12
  %14 = trunc nuw nsw i64 %indvars.iv to i32
  %15 = tail call noundef nonnull align 4 dereferenceable(4) ptr @_ZN7MyArrayixEi(ptr noundef nonnull align 8 dereferenceable(16) %1, i32 noundef %14)
  %16 = load float, ptr %15, align 4, !tbaa !12
  %17 = tail call float @llvm.fmuladd.f32(float %13, float %16, float %.067)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %18 = load i32, ptr %0, align 8, !tbaa !5
  %19 = sext i32 %18 to i64
  %20 = icmp slt i64 %indvars.iv.next, %19
  br i1 %20, label %10, label %._crit_edge, !llvm.loop !14
}

attributes #0 = { mustprogress nounwind uwtable "min-legal-vector-width"="0" "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #1 = { noreturn nounwind "no-trapping-math"="true" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cmov,+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "tune-cpu"="generic" }
attributes #2 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { noreturn nounwind }

!llvm.module.flags = !{!0, !1, !2, !3}
!llvm.ident = !{!4}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 8, !"PIC Level", i32 2}
!2 = !{i32 7, !"PIE Level", i32 2}
!3 = !{i32 7, !"uwtable", i32 2}
!4 = !{!"clang version 19.1.0 (git@github.com:llvm/llvm-project.git a4bf6cd7cfb1a1421ba92bca9d017b49936c55e4)"}
!5 = !{!6, !7, i64 0}
!6 = !{!"_ZTS7MyArray", !7, i64 0, !10, i64 8}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C++ TBAA"}
!10 = !{!"any pointer", !8, i64 0}
!11 = !{!6, !10, i64 8}
!12 = !{!13, !13, i64 0}
!13 = !{!"float", !8, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass