; LLVM IR from buresjan/optim_lbm :: nomad/ext/sgtelib/src/Matrix.ll (ZNK7SGTELIB6Matrix9transposeEv)

; 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.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.SGTELIB::Matrix" = type { ptr, %"class.std::__cxx11::basic_string", i32, i32, ptr }

@.str.95 = external hidden unnamed_addr constant [2 x i8], align 1

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

declare i32 @__gxx_personality_v0(...)

; 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
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_PKS5_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7SGTELIB6Matrix3setEiid(ptr noundef nonnull align 8 dereferenceable(56), i32 noundef, i32 noundef, double noundef) #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK7SGTELIB6Matrix9transposeEv(ptr dead_on_unwind noalias writable sret(%"class.SGTELIB::Matrix") align 8 %0, ptr noundef nonnull align 8 dereferenceable(56) %1) #3 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca ptr, align 8
  %4 = alloca ptr, align 8
  %5 = alloca i1, align 1
  %6 = alloca %"class.std::__cxx11::basic_string", align 8
  %7 = alloca ptr, align 8
  %8 = alloca i32, align 4
  %9 = alloca i32, align 4
  %10 = alloca i32, align 4
  %11 = alloca i32, align 4
  store ptr %0, ptr %3, align 8
  store ptr %1, ptr %4, align 8, !tbaa !5
  %12 = load ptr, ptr %4, align 8
  store i1 false, ptr %5, align 1
  call void @llvm.lifetime.start.p0(i64 32, ptr %6) #4
  %13 = getelementptr inbounds %"class.SGTELIB::Matrix", ptr %12, i32 0, i32 1
  call void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_PKS5_(ptr dead_on_unwind writable sret(%"class.std::__cxx11::basic_string") align 8 %6, ptr noundef nonnull align 8 dereferenceable(32) %13, ptr noundef @.str.95)
  %14 = getelementptr inbounds %"class.SGTELIB::Matrix", ptr %12, i32 0, i32 3
  %15 = load i32, ptr %14, align 4, !tbaa !9
  %16 = getelementptr inbounds %"class.SGTELIB::Matrix", ptr %12, i32 0, i32 2
  %17 = load i32, ptr %16, align 8, !tbaa !15
  invoke void @_ZN7SGTELIB6MatrixC1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull align 8 dereferenceable(32) %6, i32 noundef %15, i32 noundef %17)
          to label %18 unwind label %25

18:                                               ; preds = %2
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #4
  call void @llvm.lifetime.start.p0(i64 4, ptr %9) #4
  store i32 0, ptr %9, align 4, !tbaa !16
  br label %19

19:                                               ; preds = %53, %18
  %20 = load i32, ptr %9, align 4, !tbaa !16
  %21 = getelementptr inbounds %"class.SGTELIB::Matrix", ptr %12, i32 0, i32 3
  %22 = load i32, ptr %21, align 4, !tbaa !9
  %23 = icmp slt i32 %20, %22
  br i1 %23, label %29, label %24

24:                                               ; preds = %19
  store i32 2, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %9) #4
  br label %56

25:                                               ; preds = %2
  %26 = landingpad { ptr, i32 }
          cleanup
  %27 = extractvalue { ptr, i32 } %26, 0
  store ptr %27, ptr %7, align 8
  %28 = extractvalue { ptr, i32 } %26, 1
  store i32 %28, ptr %8, align 4
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %6) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr %6) #4
  br label %60

29:                                               ; preds = %19
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  store i32 0, ptr %11, align 4, !tbaa !16
  br label %30

30:                                               ; preds = %49, %29
  %31 = load i32, ptr %11, align 4, !tbaa !16
  %32 = getelementptr inbounds %"class.SGTELIB::Matrix", ptr %12, i32 0, i32 2
  %33 = load i32, ptr %32, align 8, !tbaa !15
  %34 = icmp slt i32 %31, %33
  br i1 %34, label %36, label %35

35:                                               ; preds = %30
  store i32 5, ptr %10, align 4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  br label %52

36:                                               ; preds = %30
  %37 = load i32, ptr %9, align 4, !tbaa !16
  %38 = load i32, ptr %11, align 4, !tbaa !16
  %39 = getelementptr inbounds %"class.SGTELIB::Matrix", ptr %12, i32 0, i32 4
  %40 = load ptr, ptr %39, align 8, !tbaa !17
  %41 = load i32, ptr %11, align 4, !tbaa !16
  %42 = sext i32 %41 to i64
  %43 = getelementptr inbounds ptr, ptr %40, i64 %42
  %44 = load ptr, ptr %43, align 8, !tbaa !5
  %45 = load i32, ptr %9, align 4, !tbaa !16
  %46 = sext i32 %45 to i64
  %47 = getelementptr inbounds double, ptr %44, i64 %46
  %48 = load double, ptr %47, align 8, !tbaa !18
  call void @_ZN7SGTELIB6Matrix3setEiid(ptr noundef nonnull align 8 dereferenceable(56) %0, i32 noundef %37, i32 noundef %38, double noundef %48)
  br label %49

49:                                               ; preds = %36
  %50 = load i32, ptr %11, align 4, !tbaa !16
  %51 = add nsw i32 %50, 1
  store i32 %51, ptr %11, align 4, !tbaa !16
  br label %30, !llvm.loop !20

52:                                               ; preds = %35
  br label %53

53:                                               ; preds = %52
  %54 = load i32, ptr %9, align 4, !tbaa !16
  %55 = add nsw i32 %54, 1
  store i32 %55, ptr %9, align 4, !tbaa !16
  br label %19, !llvm.loop !22

56:                                               ; preds = %24
  store i1 true, ptr %5, align 1
  store i32 1, ptr %10, align 4
  %57 = load i1, ptr %5, align 1
  br i1 %57, label %59, label %58

58:                                               ; preds = %56
  call void @_ZN7SGTELIB6MatrixD1Ev(ptr noundef nonnull align 8 dereferenceable(56) %0) #4
  br label %59

59:                                               ; preds = %58, %56
  ret void

60:                                               ; preds = %25
  %61 = load ptr, ptr %7, align 8
  %62 = load i32, ptr %8, align 4
  %63 = insertvalue { ptr, i32 } poison, ptr %61, 0
  %64 = insertvalue { ptr, i32 } %63, i32 %62, 1
  resume { ptr, i32 } %64
}

declare void @_ZN7SGTELIB6MatrixC1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr, ptr, i32, i32)

declare void @_ZN7SGTELIB6MatrixD1Ev(ptr)

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 = { 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 = { 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 #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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}
!9 = !{!10, !14, i64 44}
!10 = !{!"_ZTSN7SGTELIB6MatrixE", !11, i64 8, !14, i64 40, !14, i64 44, !6, i64 48}
!11 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !12, i64 0, !13, i64 8, !7, i64 16}
!12 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !6, i64 0}
!13 = !{!"long", !7, i64 0}
!14 = !{!"int", !7, i64 0}
!15 = !{!10, !14, i64 40}
!16 = !{!14, !14, i64 0}
!17 = !{!10, !6, i64 48}
!18 = !{!19, !19, i64 0}
!19 = !{!"double", !7, i64 0}
!20 = distinct !{!20, !21}
!21 = !{!"llvm.loop.mustprogress"}
!22 = distinct !{!22, !21}


; 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"

%"class.std::__cxx11::basic_string" = type { %"struct.std::__cxx11::basic_string<char>::_Alloc_hider", i64, %union.anon }
%"struct.std::__cxx11::basic_string<char>::_Alloc_hider" = type { ptr }
%union.anon = type { i64, [8 x i8] }
%"class.SGTELIB::Matrix" = type { ptr, %"class.std::__cxx11::basic_string", i32, i32, ptr }

@.str.95 = external hidden unnamed_addr constant [2 x i8], align 1

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

declare i32 @__gxx_personality_v0(...)

; 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 nounwind uwtable
declare void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32)) unnamed_addr #1 align 2

; Function Attrs: inlinehint mustprogress uwtable
declare dso_local void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_PKS5_(ptr dead_on_unwind noalias writable sret(%"class.std::__cxx11::basic_string") align 8, ptr noundef nonnull align 8 dereferenceable(32), ptr noundef) local_unnamed_addr #2

; Function Attrs: mustprogress nounwind uwtable
declare dso_local void @_ZN7SGTELIB6Matrix3setEiid(ptr noundef nonnull align 8 dereferenceable(56), i32 noundef, i32 noundef, double noundef) local_unnamed_addr #1 align 2

; Function Attrs: mustprogress uwtable
define dso_local void @_ZNK7SGTELIB6Matrix9transposeEv(ptr dead_on_unwind noalias writable sret(%"class.SGTELIB::Matrix") align 8 %0, ptr noundef nonnull align 8 dereferenceable(56) %1) local_unnamed_addr #3 align 2 personality ptr @__gxx_personality_v0 {
  %3 = alloca %"class.std::__cxx11::basic_string", align 8
  call void @llvm.lifetime.start.p0(i64 32, ptr nonnull %3) #4
  %4 = getelementptr inbounds i8, ptr %1, i64 8
  call void @_ZStplIcSt11char_traitsIcESaIcEENSt7__cxx1112basic_stringIT_T0_T1_EERKS8_PKS5_(ptr dead_on_unwind nonnull writable sret(%"class.std::__cxx11::basic_string") align 8 %3, ptr noundef nonnull align 8 dereferenceable(32) %4, ptr noundef nonnull @.str.95)
  %5 = getelementptr inbounds i8, ptr %1, i64 44
  %6 = load i32, ptr %5, align 4, !tbaa !5
  %7 = getelementptr inbounds i8, ptr %1, i64 40
  %8 = load i32, ptr %7, align 8, !tbaa !14
  invoke void @_ZN7SGTELIB6MatrixC1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr noundef nonnull align 8 dereferenceable(56) %0, ptr noundef nonnull align 8 dereferenceable(32) %3, i32 noundef %6, i32 noundef %8)
          to label %9 unwind label %19

9:                                                ; preds = %2
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #4
  %10 = load i32, ptr %5, align 4, !tbaa !5
  %11 = icmp sgt i32 %10, 0
  br i1 %11, label %.preheader.lr.ph, label %._crit_edge14

.preheader.lr.ph:                                 ; preds = %9
  %12 = getelementptr inbounds i8, ptr %1, i64 48
  %13 = load i32, ptr %7, align 8, !tbaa !14
  %14 = icmp sgt i32 %13, 0
  br i1 %14, label %.preheader, label %._crit_edge14

.preheader:                                       ; preds = %.preheader.lr.ph, %._crit_edge
  %15 = phi i32 [ %21, %._crit_edge ], [ %10, %.preheader.lr.ph ]
  %16 = phi i32 [ %22, %._crit_edge ], [ %13, %.preheader.lr.ph ]
  %indvars.iv17 = phi i64 [ %indvars.iv.next18, %._crit_edge ], [ 0, %.preheader.lr.ph ]
  %17 = icmp sgt i32 %16, 0
  br i1 %17, label %.lr.ph, label %._crit_edge

.lr.ph:                                           ; preds = %.preheader
  %18 = trunc nuw nsw i64 %indvars.iv17 to i32
  br label %25

19:                                               ; preds = %2
  %20 = landingpad { ptr, i32 }
          cleanup
  call void @_ZNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEED2Ev(ptr noundef nonnull align 8 dereferenceable(32) %3) #4
  call void @llvm.lifetime.end.p0(i64 32, ptr nonnull %3) #4
  resume { ptr, i32 } %20

._crit_edge.loopexit:                             ; preds = %25
  %.pre = load i32, ptr %5, align 4, !tbaa !5
  br label %._crit_edge

._crit_edge:                                      ; preds = %._crit_edge.loopexit, %.preheader
  %21 = phi i32 [ %.pre, %._crit_edge.loopexit ], [ %15, %.preheader ]
  %22 = phi i32 [ %32, %._crit_edge.loopexit ], [ %16, %.preheader ]
  %indvars.iv.next18 = add nuw nsw i64 %indvars.iv17, 1
  %23 = sext i32 %21 to i64
  %24 = icmp slt i64 %indvars.iv.next18, %23
  br i1 %24, label %.preheader, label %._crit_edge14, !llvm.loop !15

25:                                               ; preds = %.lr.ph, %25
  %indvars.iv = phi i64 [ 0, %.lr.ph ], [ %indvars.iv.next, %25 ]
  %26 = load ptr, ptr %12, align 8, !tbaa !18
  %27 = getelementptr inbounds ptr, ptr %26, i64 %indvars.iv
  %28 = load ptr, ptr %27, align 8, !tbaa !19
  %29 = getelementptr inbounds double, ptr %28, i64 %indvars.iv17
  %30 = load double, ptr %29, align 8, !tbaa !20
  %31 = trunc nuw nsw i64 %indvars.iv to i32
  call void @_ZN7SGTELIB6Matrix3setEiid(ptr noundef nonnull align 8 dereferenceable(56) %0, i32 noundef %18, i32 noundef %31, double noundef %30)
  %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
  %32 = load i32, ptr %7, align 8, !tbaa !14
  %33 = sext i32 %32 to i64
  %34 = icmp slt i64 %indvars.iv.next, %33
  br i1 %34, label %25, label %._crit_edge.loopexit, !llvm.loop !22

._crit_edge14:                                    ; preds = %._crit_edge, %.preheader.lr.ph, %9
  ret void
}

declare void @_ZN7SGTELIB6MatrixC1ERKNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEii(ptr, ptr, i32, i32) local_unnamed_addr

attributes #0 = { mustprogress 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 = { 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 = { 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 #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, !13, i64 44}
!6 = !{!"_ZTSN7SGTELIB6MatrixE", !7, i64 8, !13, i64 40, !13, i64 44, !9, i64 48}
!7 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEE", !8, i64 0, !12, i64 8, !10, i64 16}
!8 = !{!"_ZTSNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEE12_Alloc_hiderE", !9, i64 0}
!9 = !{!"any pointer", !10, i64 0}
!10 = !{!"omnipotent char", !11, i64 0}
!11 = !{!"Simple C++ TBAA"}
!12 = !{!"long", !10, i64 0}
!13 = !{!"int", !10, i64 0}
!14 = !{!6, !13, i64 40}
!15 = distinct !{!15, !16, !17}
!16 = !{!"llvm.loop.mustprogress"}
!17 = !{!"llvm.loop.unswitch.partial.disable"}
!18 = !{!6, !9, i64 48}
!19 = !{!9, !9, i64 0}
!20 = !{!21, !21, i64 0}
!21 = !{!"double", !10, i64 0}
!22 = distinct !{!22, !16}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LICMPass,LoopRotatePass,LoopSimplifyCFGPass,LoopSimplifyPass,LoopUnrollPass,SROAPass,SimpleLoopUnswitchPass,SimplifyCFGPass