; LLVM IR from robinrodricks/InspiritImage :: Inspirit.Assurf/clib/rpp (rpp)

; 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"

%struct.vec3_t = type { [3 x double] }
%struct.mat33_t = type { [9 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

declare void @vec3_mult_mat(ptr noundef, ptr noundef, ptr noundef) #1

declare void @vec3_add_vec(ptr noundef, ptr noundef) #1

; Function Attrs: nounwind uwtable
define dso_local void @optimal_t(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4, i32 noundef %5) #2 {
  %7 = alloca ptr, align 8
  %8 = alloca ptr, align 8
  %9 = alloca ptr, align 8
  %10 = alloca ptr, align 8
  %11 = alloca ptr, align 8
  %12 = alloca i32, align 4
  %13 = alloca %struct.vec3_t, align 8
  %14 = alloca i32, align 4
  %15 = alloca %struct.vec3_t, align 8
  %16 = alloca %struct.vec3_t, align 8
  store ptr %0, ptr %7, align 8, !tbaa !5
  store ptr %1, ptr %8, align 8, !tbaa !5
  store ptr %2, ptr %9, align 8, !tbaa !5
  store ptr %3, ptr %10, align 8, !tbaa !5
  store ptr %4, ptr %11, align 8, !tbaa !5
  store i32 %5, ptr %12, align 4, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 24, ptr %13) #3
  call void @vec3_clear(ptr noundef %13)
  call void @llvm.lifetime.start.p0(i64 4, ptr %14) #3
  store i32 0, ptr %14, align 4, !tbaa !9
  br label %17

17:                                               ; preds = %31, %6
  %18 = load i32, ptr %14, align 4, !tbaa !9
  %19 = load i32, ptr %12, align 4, !tbaa !9
  %20 = icmp slt i32 %18, %19
  br i1 %20, label %21, label %34

21:                                               ; preds = %17
  call void @llvm.lifetime.start.p0(i64 24, ptr %15) #3
  call void @llvm.lifetime.start.p0(i64 24, ptr %16) #3
  %22 = load ptr, ptr %8, align 8, !tbaa !5
  %23 = load ptr, ptr %11, align 8, !tbaa !5
  %24 = load i32, ptr %14, align 4, !tbaa !9
  %25 = sext i32 %24 to i64
  %26 = getelementptr inbounds %struct.vec3_t, ptr %23, i64 %25
  call void @vec3_mult_mat(ptr noundef %15, ptr noundef %22, ptr noundef %26)
  %27 = load ptr, ptr %10, align 8, !tbaa !5
  %28 = load i32, ptr %14, align 4, !tbaa !9
  %29 = sext i32 %28 to i64
  %30 = getelementptr inbounds %struct.mat33_t, ptr %27, i64 %29
  call void @vec3_mult_mat(ptr noundef %16, ptr noundef %30, ptr noundef %15)
  call void @vec3_add_vec(ptr noundef %13, ptr noundef %16)
  call void @llvm.lifetime.end.p0(i64 24, ptr %16) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %15) #3
  br label %31

31:                                               ; preds = %21
  %32 = load i32, ptr %14, align 4, !tbaa !9
  %33 = add nsw i32 %32, 1
  store i32 %33, ptr %14, align 4, !tbaa !9
  br label %17, !llvm.loop !11

34:                                               ; preds = %17
  %35 = load ptr, ptr %7, align 8, !tbaa !5
  %36 = load ptr, ptr %9, align 8, !tbaa !5
  call void @vec3_mult_mat(ptr noundef %35, ptr noundef %36, ptr noundef %13)
  call void @llvm.lifetime.end.p0(i64 4, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr %13) #3
  ret void
}

declare void @vec3_clear(ptr noundef) #1

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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 #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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

%struct.vec3_t = type { [3 x double] }
%struct.mat33_t = type { [9 x double] }

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

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

declare void @vec3_mult_mat(ptr noundef, ptr noundef, ptr noundef) local_unnamed_addr #1

declare void @vec3_add_vec(ptr noundef, ptr noundef) local_unnamed_addr #1

; Function Attrs: nounwind uwtable
define dso_local void @optimal_t(ptr noundef %0, ptr noundef %1, ptr noundef %2, ptr noundef %3, ptr noundef %4, i32 noundef %5) local_unnamed_addr #2 {
  %7 = alloca %struct.vec3_t, align 8
  %8 = alloca %struct.vec3_t, align 8
  %9 = alloca %struct.vec3_t, align 8
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %7) #3
  call void @vec3_clear(ptr noundef nonnull %7) #3
  %10 = icmp sgt i32 %5, 0
  br i1 %10, label %.lr.ph.preheader, label %._crit_edge

.lr.ph.preheader:                                 ; preds = %6
  %wide.trip.count = zext nneg i32 %5 to i64
  br label %.lr.ph

.lr.ph:                                           ; preds = %.lr.ph.preheader, %.lr.ph
  %indvars.iv = phi i64 [ 0, %.lr.ph.preheader ], [ %indvars.iv.next, %.lr.ph ]
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %8) #3
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %9) #3
  %11 = getelementptr inbounds %struct.vec3_t, ptr %4, i64 %indvars.iv
  call void @vec3_mult_mat(ptr noundef nonnull %8, ptr noundef %1, ptr noundef %11) #3
  %12 = getelementptr inbounds %struct.mat33_t, ptr %3, i64 %indvars.iv
  call void @vec3_mult_mat(ptr noundef nonnull %9, ptr noundef %12, ptr noundef nonnull %8) #3
  call void @vec3_add_vec(ptr noundef nonnull %7, ptr noundef nonnull %9) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %9) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %8) #3
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %exitcond.not = icmp eq i64 %indvars.iv.next, %wide.trip.count
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !5

._crit_edge:                                      ; preds = %.lr.ph, %6
  call void @vec3_mult_mat(ptr noundef %0, ptr noundef %2, ptr noundef nonnull %7) #3
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %7) #3
  ret void
}

declare void @vec3_clear(ptr noundef) local_unnamed_addr #1

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { "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 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 #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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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