; LLVM IR from Dovyski/opengl-demos :: libs/glm-0.9.9.3/test/gtc/gtc_packing.ll (Z10print_bitsRKf)

; 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"

%union.anon = type { float }

@.str = external hidden unnamed_addr constant [6 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress uwtable
define dso_local void @_Z10print_bitsRKf(ptr noundef nonnull align 4 dereferenceable(4) %0) #0 {
  %2 = alloca ptr, align 8
  %3 = alloca %union.anon, align 4
  %4 = alloca i64, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = load float, ptr %5, align 4, !tbaa !9
  store float %6, ptr %3, align 4, !tbaa !11
  %7 = call i32 (ptr, ...) @printf(ptr noundef @.str)
  call void @llvm.lifetime.start.p0(i64 8, ptr %4) #3
  store i64 32, ptr %4, align 8, !tbaa !12
  br label %8

8:                                                ; preds = %31, %1
  %9 = load i64, ptr %4, align 8, !tbaa !12
  %10 = icmp ugt i64 %9, 0
  br i1 %10, label %12, label %11

11:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 8, ptr %4) #3
  br label %34

12:                                               ; preds = %8
  %13 = load i64, ptr %4, align 8, !tbaa !12
  %14 = icmp eq i64 %13, 23
  br i1 %14, label %18, label %15

15:                                               ; preds = %12
  %16 = load i64, ptr %4, align 8, !tbaa !12
  %17 = icmp eq i64 %16, 31
  br i1 %17, label %18, label %20

18:                                               ; preds = %15, %12
  %19 = call i32 (ptr, ...) @printf(ptr noundef @.str.1)
  br label %20

20:                                               ; preds = %18, %15
  %21 = load i32, ptr %3, align 4, !tbaa !11
  %22 = load i64, ptr %4, align 8, !tbaa !12
  %23 = sub i64 %22, 1
  %24 = trunc i64 %23 to i32
  %25 = shl i32 1, %24
  %26 = and i32 %21, %25
  %27 = icmp ne i32 %26, 0
  %28 = zext i1 %27 to i64
  %29 = select i1 %27, i32 1, i32 0
  %30 = call i32 (ptr, ...) @printf(ptr noundef @.str.2, i32 noundef %29)
  br label %31

31:                                               ; preds = %20
  %32 = load i64, ptr %4, align 8, !tbaa !12
  %33 = add i64 %32, -1
  store i64 %33, ptr %4, align 8, !tbaa !12
  br label %8, !llvm.loop !14

34:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  ret void
}

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

declare i32 @printf(ptr noundef, ...) #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 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 = { "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 = { 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, !10, i64 0}
!10 = !{!"float", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = !{!13, !13, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = distinct !{!14, !15}
!15 = !{!"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 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.1 = external hidden unnamed_addr constant [2 x i8], align 1
@.str.2 = external hidden unnamed_addr constant [3 x i8], align 1

; Function Attrs: mustprogress nofree nounwind uwtable
define dso_local void @_Z10print_bitsRKf(ptr nocapture noundef nonnull readonly align 4 dereferenceable(4) %0) local_unnamed_addr #0 {
  %2 = load i32, ptr %0, align 4, !tbaa !5
  %3 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str)
  br label %5

4:                                                ; preds = %9
  ret void

5:                                                ; preds = %1, %9
  %.07 = phi i64 [ 32, %1 ], [ %15, %9 ]
  %6 = and i64 %.07, -9
  %or.cond = icmp eq i64 %6, 23
  br i1 %or.cond, label %7, label %9

7:                                                ; preds = %5
  %8 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.1)
  br label %9

9:                                                ; preds = %5, %7
  %10 = trunc i64 %.07 to i32
  %11 = add i32 %10, -1
  %12 = lshr i32 %2, %11
  %13 = and i32 %12, 1
  %14 = tail call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.2, i32 noundef %13)
  %15 = add nsw i64 %.07, -1
  %.not = icmp eq i64 %15, 0
  br i1 %.not, label %4, label %5, !llvm.loop !9
}

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #1

attributes #0 = { mustprogress nofree 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 = { nofree 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" }

!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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass