; LLVM IR from cvxgrp/scs :: linsys/external/amd (SuiteSparse_config)

; 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"

; Function Attrs: nounwind uwtable
define dso_local i32 @SuiteSparse_divcomplex(double noundef %0, double noundef %1, double noundef %2, double noundef %3, ptr noundef %4, ptr noundef %5) #0 {
  %7 = alloca double, align 8
  %8 = alloca double, align 8
  %9 = alloca double, align 8
  %10 = alloca double, align 8
  %11 = alloca ptr, align 8
  %12 = alloca ptr, align 8
  %13 = alloca double, align 8
  %14 = alloca double, align 8
  %15 = alloca double, align 8
  %16 = alloca double, align 8
  store double %0, ptr %7, align 8, !tbaa !5
  store double %1, ptr %8, align 8, !tbaa !5
  store double %2, ptr %9, align 8, !tbaa !5
  store double %3, ptr %10, align 8, !tbaa !5
  store ptr %4, ptr %11, align 8, !tbaa !9
  store ptr %5, ptr %12, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #3
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #3
  %17 = load double, ptr %9, align 8, !tbaa !5
  %18 = call double @llvm.fabs.f64(double %17)
  %19 = load double, ptr %10, align 8, !tbaa !5
  %20 = call double @llvm.fabs.f64(double %19)
  %21 = fcmp oge double %18, %20
  br i1 %21, label %22, label %43

22:                                               ; preds = %6
  %23 = load double, ptr %10, align 8, !tbaa !5
  %24 = load double, ptr %9, align 8, !tbaa !5
  %25 = fdiv double %23, %24
  store double %25, ptr %15, align 8, !tbaa !5
  %26 = load double, ptr %9, align 8, !tbaa !5
  %27 = load double, ptr %15, align 8, !tbaa !5
  %28 = load double, ptr %10, align 8, !tbaa !5
  %29 = call double @llvm.fmuladd.f64(double %27, double %28, double %26)
  store double %29, ptr %16, align 8, !tbaa !5
  %30 = load double, ptr %7, align 8, !tbaa !5
  %31 = load double, ptr %8, align 8, !tbaa !5
  %32 = load double, ptr %15, align 8, !tbaa !5
  %33 = call double @llvm.fmuladd.f64(double %31, double %32, double %30)
  %34 = load double, ptr %16, align 8, !tbaa !5
  %35 = fdiv double %33, %34
  store double %35, ptr %13, align 8, !tbaa !5
  %36 = load double, ptr %8, align 8, !tbaa !5
  %37 = load double, ptr %7, align 8, !tbaa !5
  %38 = load double, ptr %15, align 8, !tbaa !5
  %39 = fneg double %37
  %40 = call double @llvm.fmuladd.f64(double %39, double %38, double %36)
  %41 = load double, ptr %16, align 8, !tbaa !5
  %42 = fdiv double %40, %41
  store double %42, ptr %14, align 8, !tbaa !5
  br label %64

43:                                               ; preds = %6
  %44 = load double, ptr %9, align 8, !tbaa !5
  %45 = load double, ptr %10, align 8, !tbaa !5
  %46 = fdiv double %44, %45
  store double %46, ptr %15, align 8, !tbaa !5
  %47 = load double, ptr %15, align 8, !tbaa !5
  %48 = load double, ptr %9, align 8, !tbaa !5
  %49 = load double, ptr %10, align 8, !tbaa !5
  %50 = call double @llvm.fmuladd.f64(double %47, double %48, double %49)
  store double %50, ptr %16, align 8, !tbaa !5
  %51 = load double, ptr %7, align 8, !tbaa !5
  %52 = load double, ptr %15, align 8, !tbaa !5
  %53 = load double, ptr %8, align 8, !tbaa !5
  %54 = call double @llvm.fmuladd.f64(double %51, double %52, double %53)
  %55 = load double, ptr %16, align 8, !tbaa !5
  %56 = fdiv double %54, %55
  store double %56, ptr %13, align 8, !tbaa !5
  %57 = load double, ptr %8, align 8, !tbaa !5
  %58 = load double, ptr %15, align 8, !tbaa !5
  %59 = load double, ptr %7, align 8, !tbaa !5
  %60 = fneg double %59
  %61 = call double @llvm.fmuladd.f64(double %57, double %58, double %60)
  %62 = load double, ptr %16, align 8, !tbaa !5
  %63 = fdiv double %61, %62
  store double %63, ptr %14, align 8, !tbaa !5
  br label %64

64:                                               ; preds = %43, %22
  %65 = load double, ptr %13, align 8, !tbaa !5
  %66 = load ptr, ptr %11, align 8, !tbaa !9
  store double %65, ptr %66, align 8, !tbaa !5
  %67 = load double, ptr %14, align 8, !tbaa !5
  %68 = load ptr, ptr %12, align 8, !tbaa !9
  store double %67, ptr %68, align 8, !tbaa !5
  %69 = load double, ptr %16, align 8, !tbaa !5
  %70 = fcmp oeq double %69, 0.000000e+00
  %71 = zext i1 %70 to i32
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #3
  ret i32 %71
}

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #2

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fabs.f64(double) #2

attributes #0 = { 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 #1 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }
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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}


; 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 nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
define dso_local range(i32 0, 2) i32 @SuiteSparse_divcomplex(double noundef %0, double noundef %1, double noundef %2, double noundef %3, ptr nocapture noundef writeonly %4, ptr nocapture noundef writeonly %5) local_unnamed_addr #0 {
  %7 = tail call double @llvm.fabs.f64(double %2)
  %8 = tail call double @llvm.fabs.f64(double %3)
  %9 = fcmp ult double %7, %8
  %10 = fneg double %0
  br i1 %9, label %24, label %11

11:                                               ; preds = %6
  %12 = fdiv double %3, %2
  %13 = tail call double @llvm.fmuladd.f64(double %12, double %3, double %2)
  %14 = insertelement <2 x double> poison, double %1, i64 0
  %15 = insertelement <2 x double> %14, double %10, i64 1
  %16 = insertelement <2 x double> poison, double %12, i64 0
  %17 = shufflevector <2 x double> %16, <2 x double> poison, <2 x i32> zeroinitializer
  %18 = insertelement <2 x double> poison, double %0, i64 0
  %19 = insertelement <2 x double> %18, double %1, i64 1
  %20 = tail call <2 x double> @llvm.fmuladd.v2f64(<2 x double> %15, <2 x double> %17, <2 x double> %19)
  %21 = insertelement <2 x double> poison, double %13, i64 0
  %22 = shufflevector <2 x double> %21, <2 x double> poison, <2 x i32> zeroinitializer
  %23 = fdiv <2 x double> %20, %22
  br label %37

24:                                               ; preds = %6
  %25 = fdiv double %2, %3
  %26 = tail call double @llvm.fmuladd.f64(double %25, double %2, double %3)
  %27 = insertelement <2 x double> poison, double %0, i64 0
  %28 = insertelement <2 x double> %27, double %1, i64 1
  %29 = insertelement <2 x double> poison, double %25, i64 0
  %30 = shufflevector <2 x double> %29, <2 x double> poison, <2 x i32> zeroinitializer
  %31 = insertelement <2 x double> poison, double %1, i64 0
  %32 = insertelement <2 x double> %31, double %10, i64 1
  %33 = tail call <2 x double> @llvm.fmuladd.v2f64(<2 x double> %28, <2 x double> %30, <2 x double> %32)
  %34 = insertelement <2 x double> poison, double %26, i64 0
  %35 = shufflevector <2 x double> %34, <2 x double> poison, <2 x i32> zeroinitializer
  %36 = fdiv <2 x double> %33, %35
  br label %37

37:                                               ; preds = %24, %11
  %.0 = phi double [ %13, %11 ], [ %26, %24 ]
  %38 = phi <2 x double> [ %23, %11 ], [ %36, %24 ]
  %39 = extractelement <2 x double> %38, i64 0
  store double %39, ptr %4, align 8, !tbaa !5
  %40 = extractelement <2 x double> %38, i64 1
  store double %40, ptr %5, align 8, !tbaa !5
  %41 = fcmp oeq double %.0, 0.000000e+00
  %42 = zext i1 %41 to i32
  ret i32 %42
}

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fmuladd.f64(double, double, double) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare double @llvm.fabs.f64(double) #1

; Function Attrs: nocallback nofree nosync nounwind speculatable willreturn memory(none)
declare <2 x double> @llvm.fmuladd.v2f64(<2 x double>, <2 x double>, <2 x double>) #2

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) 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 #1 = { mustprogress nocallback nofree nosync nounwind speculatable willreturn memory(none) }
attributes #2 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

!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 = !{!"double", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass,SimplifyCFGPass,TailCallElimPass