; LLVM IR from ardiloot/NonlinearTMM :: NonlinearTMM/src/eigen-3.4.0/test/inverse.ll (Z12test_inversev)

; 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"

@_ZN5EigenL8g_repeatE = external hidden global i32, align 4

; 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 uwtable
define dso_local void @_Z12test_inversev() #1 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  %6 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #4
  store i32 0, ptr %1, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #4
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %7

7:                                                ; preds = %15, %0
  %8 = load i32, ptr %2, align 4, !tbaa !5
  %9 = load i32, ptr @_ZN5EigenL8g_repeatE, align 4, !tbaa !5
  %10 = icmp slt i32 %8, %9
  br i1 %10, label %12, label %11

11:                                               ; preds = %7
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #4
  br label %18

12:                                               ; preds = %7
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #4
  store i32 50, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #4
  store i32 320, ptr %4, align 4, !tbaa !5
  %13 = call noundef i32 @_ZN5Eigen8internal6randomIiEENS0_13random_retvalINS0_36global_math_functions_filtering_baseIT_vE4typeEE4typeERKS4_SA_(ptr noundef nonnull align 4 dereferenceable(4) %3, ptr noundef nonnull align 4 dereferenceable(4) %4)
  store i32 %13, ptr %1, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #4
  call void @_ZN5Eigen8internal22ignore_unused_variableIiEEvRKT_(ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #4
  store i32 25, ptr %5, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %6) #4
  store i32 100, ptr %6, align 4, !tbaa !5
  %14 = call noundef i32 @_ZN5Eigen8internal6randomIiEENS0_13random_retvalINS0_36global_math_functions_filtering_baseIT_vE4typeEE4typeERKS4_SA_(ptr noundef nonnull align 4 dereferenceable(4) %5, ptr noundef nonnull align 4 dereferenceable(4) %6)
  store i32 %14, ptr %1, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %6) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #4
  call void @_ZN5Eigen8internal22ignore_unused_variableIiEEvRKT_(ptr noundef nonnull align 4 dereferenceable(4) %1)
  br label %15

15:                                               ; preds = %12
  %16 = load i32, ptr %2, align 4, !tbaa !5
  %17 = add nsw i32 %16, 1
  store i32 %17, ptr %2, align 4, !tbaa !5
  br label %7, !llvm.loop !9

18:                                               ; preds = %11
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #4
  ret void
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef i32 @_ZN5Eigen8internal6randomIiEENS0_13random_retvalINS0_36global_math_functions_filtering_baseIT_vE4typeEE4typeERKS4_SA_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN5Eigen8internal22ignore_unused_variableIiEEvRKT_(ptr noundef nonnull align 4 dereferenceable(4)) #3

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { inlinehint 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 #3 = { inlinehint 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 #4 = { 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"

@_ZN5EigenL8g_repeatE = external hidden local_unnamed_addr global i32, align 4

; 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

; Function Attrs: mustprogress uwtable
define dso_local void @_Z12test_inversev() local_unnamed_addr #1 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1) #4
  store i32 0, ptr %1, align 4, !tbaa !5
  %6 = load i32, ptr @_ZN5EigenL8g_repeatE, align 4, !tbaa !5
  %7 = icmp sgt i32 %6, 0
  br i1 %7, label %.lr.ph, label %._crit_edge

._crit_edge:                                      ; preds = %.lr.ph, %0
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1) #4
  ret void

.lr.ph:                                           ; preds = %0, %.lr.ph
  %.02 = phi i32 [ %10, %.lr.ph ], [ 0, %0 ]
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %2) #4
  store i32 50, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %3) #4
  store i32 320, ptr %3, align 4, !tbaa !5
  %8 = call noundef i32 @_ZN5Eigen8internal6randomIiEENS0_13random_retvalINS0_36global_math_functions_filtering_baseIT_vE4typeEE4typeERKS4_SA_(ptr noundef nonnull align 4 dereferenceable(4) %2, ptr noundef nonnull align 4 dereferenceable(4) %3)
  store i32 %8, ptr %1, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %3) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %2) #4
  call void @_ZN5Eigen8internal22ignore_unused_variableIiEEvRKT_(ptr noundef nonnull align 4 dereferenceable(4) %1)
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %4) #4
  store i32 25, ptr %4, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %5) #4
  store i32 100, ptr %5, align 4, !tbaa !5
  %9 = call noundef i32 @_ZN5Eigen8internal6randomIiEENS0_13random_retvalINS0_36global_math_functions_filtering_baseIT_vE4typeEE4typeERKS4_SA_(ptr noundef nonnull align 4 dereferenceable(4) %4, ptr noundef nonnull align 4 dereferenceable(4) %5)
  store i32 %9, ptr %1, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %5) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %4) #4
  call void @_ZN5Eigen8internal22ignore_unused_variableIiEEvRKT_(ptr noundef nonnull align 4 dereferenceable(4) %1)
  %10 = add nuw nsw i32 %.02, 1
  %11 = load i32, ptr @_ZN5EigenL8g_repeatE, align 4, !tbaa !5
  %12 = icmp slt i32 %10, %11
  br i1 %12, label %.lr.ph, label %._crit_edge, !llvm.loop !9
}

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local noundef i32 @_ZN5Eigen8internal6randomIiEENS0_13random_retvalINS0_36global_math_functions_filtering_baseIT_vE4typeEE4typeERKS4_SA_(ptr noundef nonnull align 4 dereferenceable(4), ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #2

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZN5Eigen8internal22ignore_unused_variableIiEEvRKT_(ptr noundef nonnull align 4 dereferenceable(4)) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 #2 = { inlinehint 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 #3 = { inlinehint 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 #4 = { 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"}


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