; LLVM IR from tsotchke/quantum_geometric_tensor :: src/quantum_geometric/core (complex_arithmetic)

; 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.ComplexFloat = type { float, float }

; 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: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fabs.f32(float) #1

; Function Attrs: nounwind uwtable
define dso_local zeroext i1 @complex_is_equal(<2 x float> %0, <2 x float> %1) #2 {
  %3 = alloca %struct.ComplexFloat, align 4
  %4 = alloca %struct.ComplexFloat, align 4
  %5 = alloca float, align 4
  store <2 x float> %0, ptr %3, align 4
  store <2 x float> %1, ptr %4, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %5) #3
  store float 0x3EB0C6F7A0000000, ptr %5, align 4, !tbaa !5
  %6 = getelementptr inbounds %struct.ComplexFloat, ptr %3, i32 0, i32 0
  %7 = load float, ptr %6, align 4, !tbaa !9
  %8 = getelementptr inbounds %struct.ComplexFloat, ptr %4, i32 0, i32 0
  %9 = load float, ptr %8, align 4, !tbaa !9
  %10 = fsub float %7, %9
  %11 = call float @llvm.fabs.f32(float %10)
  %12 = fcmp olt float %11, 0x3EB0C6F7A0000000
  br i1 %12, label %13, label %21

13:                                               ; preds = %2
  %14 = getelementptr inbounds %struct.ComplexFloat, ptr %3, i32 0, i32 1
  %15 = load float, ptr %14, align 4, !tbaa !11
  %16 = getelementptr inbounds %struct.ComplexFloat, ptr %4, i32 0, i32 1
  %17 = load float, ptr %16, align 4, !tbaa !11
  %18 = fsub float %15, %17
  %19 = call float @llvm.fabs.f32(float %18)
  %20 = fcmp olt float %19, 0x3EB0C6F7A0000000
  br label %21

21:                                               ; preds = %13, %2
  %22 = phi i1 [ false, %2 ], [ %20, %13 ]
  call void @llvm.lifetime.end.p0(i64 4, ptr %5) #3
  ret i1 %22
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { nounwind uwtable "min-legal-vector-width"="64" "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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !6, i64 0}
!10 = !{!"", !6, i64 0, !6, i64 4}
!11 = !{!10, !6, i64 4}


; 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 nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare float @llvm.fabs.f32(float) #0

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local zeroext i1 @complex_is_equal(<2 x float> %0, <2 x float> %1) local_unnamed_addr #1 {
  %3 = fsub <2 x float> %0, %1
  %4 = extractelement <2 x float> %3, i64 0
  %5 = tail call float @llvm.fabs.f32(float %4)
  %6 = fcmp olt float %5, 0x3EB0C6F7A0000000
  br i1 %6, label %7, label %12

7:                                                ; preds = %2
  %8 = fsub <2 x float> %0, %1
  %9 = extractelement <2 x float> %8, i64 1
  %10 = tail call float @llvm.fabs.f32(float %9)
  %11 = fcmp olt float %10, 0x3EB0C6F7A0000000
  br label %12

12:                                               ; preds = %7, %2
  %13 = phi i1 [ false, %2 ], [ %11, %7 ]
  ret i1 %13
}

attributes #0 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #1 = { mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable "min-legal-vector-width"="64" "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" }

!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)"}


; Effective O3 passes: GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,TailCallElimPass,VectorCombinePass