; LLVM IR from niessner/Matterport :: code/gaps/pkgs/R2Shapes/R2Grid.ll (ZN6R2Grid3PowEd)

; 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.R2Grid = type { %class.R2Affine, %class.R2Affine, double, ptr, [2 x i32], i32, i32 }
%class.R2Affine = type <{ %class.R2Transformation, %class.R3Matrix, i32, [4 x i8] }>
%class.R2Transformation = type { ptr }
%class.R3Matrix = type { [3 x [3 x double]] }

; 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
define dso_local void @_ZN6R2Grid3PowEd(ptr noundef nonnull align 8 dereferenceable(208) %0, double noundef %1) #1 align 2 {
  %3 = alloca ptr, align 8
  %4 = alloca double, align 8
  %5 = alloca i32, align 4
  %6 = alloca double, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store double %1, ptr %4, align 8, !tbaa !9
  %7 = load ptr, ptr %3, align 8
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store i32 0, ptr %5, align 4, !tbaa !11
  br label %8

8:                                                ; preds = %33, %2
  %9 = load i32, ptr %5, align 4, !tbaa !11
  %10 = getelementptr inbounds %class.R2Grid, ptr %7, i32 0, i32 6
  %11 = load i32, ptr %10, align 4, !tbaa !13
  %12 = icmp slt i32 %9, %11
  br i1 %12, label %14, label %13

13:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  br label %36

14:                                               ; preds = %8
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  %15 = getelementptr inbounds %class.R2Grid, ptr %7, i32 0, i32 3
  %16 = load ptr, ptr %15, align 8, !tbaa !18
  %17 = load i32, ptr %5, align 4, !tbaa !11
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds double, ptr %16, i64 %18
  %20 = load double, ptr %19, align 8, !tbaa !9
  store double %20, ptr %6, align 8, !tbaa !9
  %21 = load double, ptr %6, align 8, !tbaa !9
  %22 = fcmp une double %21, -3.210000e+02
  br i1 %22, label %23, label %32

23:                                               ; preds = %14
  %24 = load double, ptr %6, align 8, !tbaa !9
  %25 = load double, ptr %4, align 8, !tbaa !9
  %26 = call double @pow(double noundef %24, double noundef %25) #3
  %27 = getelementptr inbounds %class.R2Grid, ptr %7, i32 0, i32 3
  %28 = load ptr, ptr %27, align 8, !tbaa !18
  %29 = load i32, ptr %5, align 4, !tbaa !11
  %30 = sext i32 %29 to i64
  %31 = getelementptr inbounds double, ptr %28, i64 %30
  store double %26, ptr %31, align 8, !tbaa !9
  br label %32

32:                                               ; preds = %23, %14
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  br label %33

33:                                               ; preds = %32
  %34 = load i32, ptr %5, align 4, !tbaa !11
  %35 = add nsw i32 %34, 1
  store i32 %35, ptr %5, align 4, !tbaa !11
  br label %8, !llvm.loop !19

36:                                               ; preds = %13
  ret void
}

; Function Attrs: nounwind
declare double @pow(double noundef, double noundef) #2

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 = { 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 = { 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 = !{!"double", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"int", !7, i64 0}
!13 = !{!14, !12, i64 204}
!14 = !{!"_ZTS6R2Grid", !15, i64 0, !15, i64 88, !10, i64 176, !6, i64 184, !7, i64 192, !12, i64 200, !12, i64 204}
!15 = !{!"_ZTS8R2Affine", !16, i64 0, !17, i64 8, !12, i64 80}
!16 = !{!"_ZTS16R2Transformation"}
!17 = !{!"_ZTS8R3Matrix", !7, i64 0}
!18 = !{!14, !6, i64 184}
!19 = distinct !{!19, !20}
!20 = !{!"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 nounwind memory(readwrite, inaccessiblemem: write) uwtable
define dso_local void @_ZN6R2Grid3PowEd(ptr nocapture noundef nonnull readonly align 8 dereferenceable(208) %0, double noundef %1) local_unnamed_addr #0 align 2 {
  %3 = getelementptr inbounds i8, ptr %0, i64 204
  %4 = load i32, ptr %3, align 4, !tbaa !5
  %5 = icmp sgt i32 %4, 0
  br i1 %5, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %2
  %6 = getelementptr inbounds i8, ptr %0, i64 184
  %.pre = load ptr, ptr %6, align 8, !tbaa !15
  br label %7

._crit_edge:                                      ; preds = %17, %2
  ret void

7:                                                ; preds = %.lr.ph, %17
  %8 = phi i32 [ %4, %.lr.ph ], [ %18, %17 ]
  %9 = phi ptr [ %.pre, %.lr.ph ], [ %19, %17 ]
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %17 ]
  %10 = getelementptr inbounds double, ptr %9, i64 %indvars.iv
  %11 = load double, ptr %10, align 8, !tbaa !16
  %12 = fcmp une double %11, -3.210000e+02
  br i1 %12, label %13, label %17

13:                                               ; preds = %7
  %14 = tail call double @pow(double noundef %11, double noundef %1) #2
  %15 = load ptr, ptr %6, align 8, !tbaa !15
  %16 = getelementptr inbounds double, ptr %15, i64 %indvars.iv
  store double %14, ptr %16, align 8, !tbaa !16
  %.pre10 = load i32, ptr %3, align 4, !tbaa !5
  br label %17

17:                                               ; preds = %13, %7
  %18 = phi i32 [ %.pre10, %13 ], [ %8, %7 ]
  %19 = phi ptr [ %15, %13 ], [ %9, %7 ]
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %20 = sext i32 %18 to i64
  %21 = icmp slt i64 %indvars.iv.next, %20
  br i1 %21, label %7, label %._crit_edge, !llvm.loop !17
}

; Function Attrs: mustprogress nofree nounwind willreturn memory(write)
declare double @pow(double noundef, double noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nofree nounwind memory(readwrite, inaccessiblemem: write) 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 nofree nounwind willreturn memory(write) "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 = { 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, !12, i64 204}
!6 = !{!"_ZTS6R2Grid", !7, i64 0, !7, i64 88, !13, i64 176, !14, i64 184, !10, i64 192, !12, i64 200, !12, i64 204}
!7 = !{!"_ZTS8R2Affine", !8, i64 0, !9, i64 8, !12, i64 80}
!8 = !{!"_ZTS16R2Transformation"}
!9 = !{!"_ZTS8R3Matrix", !10, i64 0}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C++ TBAA"}
!12 = !{!"int", !10, i64 0}
!13 = !{!"double", !10, i64 0}
!14 = !{!"any pointer", !10, i64 0}
!15 = !{!6, !14, i64 184}
!16 = !{!13, !13, i64 0}
!17 = distinct !{!17, !18}
!18 = !{!"llvm.loop.mustprogress"}


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