; LLVM IR from bqi343/cp-notebook :: Implementations/content/geometry (13)/3D/death_conveyor.ll (Z3gcdSt5arrayIeLm4EES0_)

; 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.std::array" = type { [4 x x86_fp80] }

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef x86_fp80 @_Z4abs2RKSt5arrayIeLm4EE(ptr noundef nonnull align 16 dereferenceable(64)) #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZrmRKSt5arrayIeLm4EES2_(ptr dead_on_unwind noalias writable sret(%"struct.std::array") align 16, ptr noundef nonnull align 16 dereferenceable(64), ptr noundef nonnull align 16 dereferenceable(64)) #2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3gcdSt5arrayIeLm4EES0_(ptr dead_on_unwind noalias writable sret(%"struct.std::array") align 16 %0, ptr noundef byval(%"struct.std::array") align 16 %1, ptr noundef byval(%"struct.std::array") align 16 %2) #2 {
  %4 = alloca %"struct.std::array", align 16
  %5 = alloca %"struct.std::array", align 16
  %6 = call noundef x86_fp80 @_Z4abs2RKSt5arrayIeLm4EE(ptr noundef nonnull align 16 dereferenceable(64) %1)
  %7 = call noundef x86_fp80 @_Z4abs2RKSt5arrayIeLm4EE(ptr noundef nonnull align 16 dereferenceable(64) %2)
  %8 = fcmp ogt x86_fp80 %6, %7
  br i1 %8, label %9, label %10

9:                                                ; preds = %3
  call void @_ZSt4swapIeLm4EENSt9enable_ifIXsr14__array_traitsIT_XT0_EE13_Is_swappableE5valueEvE4typeERSt5arrayIS1_XT0_EES6_(ptr noundef nonnull align 16 dereferenceable(64) %1, ptr noundef nonnull align 16 dereferenceable(64) %2) #4
  br label %10

10:                                               ; preds = %9, %3
  %11 = call noundef x86_fp80 @_Z4abs2RKSt5arrayIeLm4EE(ptr noundef nonnull align 16 dereferenceable(64) %1)
  %12 = fcmp oeq x86_fp80 %11, 0xK00000000000000000000
  br i1 %12, label %13, label %14

13:                                               ; preds = %10
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %0, ptr align 16 %2, i64 64, i1 false), !tbaa.struct !5
  br label %15

14:                                               ; preds = %10
  call void @_ZrmRKSt5arrayIeLm4EES2_(ptr dead_on_unwind writable sret(%"struct.std::array") align 16 %4, ptr noundef nonnull align 16 dereferenceable(64) %2, ptr noundef nonnull align 16 dereferenceable(64) %1)
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %5, ptr align 16 %1, i64 64, i1 false), !tbaa.struct !5
  call void @_Z3gcdSt5arrayIeLm4EES0_(ptr dead_on_unwind writable sret(%"struct.std::array") align 16 %0, ptr noundef byval(%"struct.std::array") align 16 %4, ptr noundef byval(%"struct.std::array") align 16 %5)
  br label %15

15:                                               ; preds = %14, %13
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZSt4swapIeLm4EENSt9enable_ifIXsr14__array_traitsIT_XT0_EE13_Is_swappableE5valueEvE4typeERSt5arrayIS1_XT0_EES6_(ptr noundef nonnull align 16 dereferenceable(64), ptr noundef nonnull align 16 dereferenceable(64)) #3

attributes #0 = { nocallback nofree 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 = { 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 = !{i64 0, i64 64, !6}
!6 = !{!7, !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; 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.std::array" = type { [4 x x86_fp80] }

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #0

; Function Attrs: mustprogress nounwind uwtable
declare dso_local noundef x86_fp80 @_Z4abs2RKSt5arrayIeLm4EE(ptr noundef nonnull align 16 dereferenceable(64)) local_unnamed_addr #1

; Function Attrs: mustprogress uwtable
declare dso_local void @_ZrmRKSt5arrayIeLm4EES2_(ptr dead_on_unwind noalias writable sret(%"struct.std::array") align 16, ptr noundef nonnull align 16 dereferenceable(64), ptr noundef nonnull align 16 dereferenceable(64)) local_unnamed_addr #2

; Function Attrs: mustprogress uwtable
define dso_local void @_Z3gcdSt5arrayIeLm4EES0_(ptr dead_on_unwind noalias nocapture writable writeonly sret(%"struct.std::array") align 16 %0, ptr noundef nonnull byval(%"struct.std::array") align 16 %1, ptr noundef byval(%"struct.std::array") align 16 %2) local_unnamed_addr #2 {
  %4 = alloca %"struct.std::array", align 16
  %5 = call noundef x86_fp80 @_Z4abs2RKSt5arrayIeLm4EE(ptr noundef nonnull align 16 dereferenceable(64) %1)
  %6 = call noundef x86_fp80 @_Z4abs2RKSt5arrayIeLm4EE(ptr noundef nonnull align 16 dereferenceable(64) %2)
  %7 = fcmp ogt x86_fp80 %5, %6
  br i1 %7, label %8, label %9

8:                                                ; preds = %3
  call void @_ZSt4swapIeLm4EENSt9enable_ifIXsr14__array_traitsIT_XT0_EE13_Is_swappableE5valueEvE4typeERSt5arrayIS1_XT0_EES6_(ptr noundef nonnull align 16 dereferenceable(64) %1, ptr noundef nonnull align 16 dereferenceable(64) %2) #4
  br label %9

9:                                                ; preds = %8, %3
  %10 = call noundef x86_fp80 @_Z4abs2RKSt5arrayIeLm4EE(ptr noundef nonnull align 16 dereferenceable(64) %1)
  %11 = fcmp oeq x86_fp80 %10, 0xK00000000000000000000
  br i1 %11, label %12, label %13

12:                                               ; preds = %9
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(64) %0, ptr noundef nonnull align 16 dereferenceable(64) %2, i64 64, i1 false), !tbaa.struct !5
  br label %14

13:                                               ; preds = %9
  call void @_ZrmRKSt5arrayIeLm4EES2_(ptr dead_on_unwind nonnull writable sret(%"struct.std::array") align 16 %4, ptr noundef nonnull align 16 dereferenceable(64) %2, ptr noundef nonnull align 16 dereferenceable(64) %1)
  call void @_Z3gcdSt5arrayIeLm4EES0_(ptr dead_on_unwind writable sret(%"struct.std::array") align 16 %0, ptr noundef nonnull byval(%"struct.std::array") align 16 %4, ptr noundef nonnull byval(%"struct.std::array") align 16 %1)
  br label %14

14:                                               ; preds = %13, %12
  ret void
}

; Function Attrs: inlinehint mustprogress nounwind uwtable
declare dso_local void @_ZSt4swapIeLm4EENSt9enable_ifIXsr14__array_traitsIT_XT0_EE13_Is_swappableE5valueEvE4typeERSt5arrayIS1_XT0_EES6_(ptr noundef nonnull align 16 dereferenceable(64), ptr noundef nonnull align 16 dereferenceable(64)) local_unnamed_addr #3

attributes #0 = { mustprogress nocallback nofree 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 = { 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 = !{i64 0, i64 64, !6}
!6 = !{!7, !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C++ TBAA"}


; Effective O3 passes: DSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,MemCpyOptPass,PostOrderFunctionAttrsPass