; LLVM IR from imteekay/algorithms :: competitive-programming/uri/the_pythagorean_theorem.ll (Z3mdcii)

; 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"

; Function Attrs: mustprogress nounwind uwtable
define dso_local noundef i32 @_Z3mdcii(i32 noundef %0, i32 noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  store i32 %0, ptr %3, align 4, !tbaa !5
  store i32 %1, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  %6 = load i32, ptr %3, align 4, !tbaa !5
  %7 = call i32 @llvm.abs.i32(i32 %6, i1 true)
  %8 = load i32, ptr %4, align 4, !tbaa !5
  %9 = call i32 @llvm.abs.i32(i32 %8, i1 true)
  %10 = icmp slt i32 %7, %9
  br i1 %10, label %11, label %14

11:                                               ; preds = %2
  %12 = load i32, ptr %3, align 4, !tbaa !5
  %13 = call i32 @llvm.abs.i32(i32 %12, i1 true)
  br label %17

14:                                               ; preds = %2
  %15 = load i32, ptr %4, align 4, !tbaa !5
  %16 = call i32 @llvm.abs.i32(i32 %15, i1 true)
  br label %17

17:                                               ; preds = %14, %11
  %18 = phi i32 [ %13, %11 ], [ %16, %14 ]
  store i32 %18, ptr %5, align 4, !tbaa !5
  br label %19

19:                                               ; preds = %31, %17
  %20 = load i32, ptr %3, align 4, !tbaa !5
  %21 = load i32, ptr %5, align 4, !tbaa !5
  %22 = srem i32 %20, %21
  %23 = icmp ne i32 %22, 0
  br i1 %23, label %29, label %24

24:                                               ; preds = %19
  %25 = load i32, ptr %4, align 4, !tbaa !5
  %26 = load i32, ptr %5, align 4, !tbaa !5
  %27 = srem i32 %25, %26
  %28 = icmp ne i32 %27, 0
  br label %29

29:                                               ; preds = %24, %19
  %30 = phi i1 [ true, %19 ], [ %28, %24 ]
  br i1 %30, label %31, label %34

31:                                               ; preds = %29
  %32 = load i32, ptr %5, align 4, !tbaa !5
  %33 = add nsw i32 %32, -1
  store i32 %33, ptr %5, align 4, !tbaa !5
  br label %19, !llvm.loop !9

34:                                               ; preds = %29
  %35 = load i32, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret i32 %35
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.abs.i32(i32, i1 immarg) #2

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

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 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #3 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef i32 @_Z3mdcii(i32 noundef %0, i32 noundef %1) local_unnamed_addr #0 {
  %3 = tail call i32 @llvm.abs.i32(i32 %0, i1 true)
  %4 = tail call i32 @llvm.abs.i32(i32 %1, i1 true)
  %. = tail call i32 @llvm.umin.i32(i32 %3, i32 %4)
  br label %5

5:                                                ; preds = %.critedge, %2
  %.0 = phi i32 [ %., %2 ], [ %9, %.critedge ]
  %6 = srem i32 %0, %.0
  %.not = icmp eq i32 %6, 0
  br i1 %.not, label %7, label %.critedge

7:                                                ; preds = %5
  %8 = srem i32 %1, %.0
  %.not12 = icmp eq i32 %8, 0
  br i1 %.not12, label %10, label %.critedge

.critedge:                                        ; preds = %5, %7
  %9 = add nsw i32 %.0, -1
  br label %5, !llvm.loop !5

10:                                               ; preds = %7
  ret i32 %.0
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.abs.i32(i32, i1 immarg) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare i32 @llvm.umin.i32(i32, i32) #2

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) 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 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,LCSSAPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass