; LLVM IR from niuyishuai/PDCABB :: LAPACK_BLAS/BLAS/TESTING (dblat2)

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

; Function Attrs: nounwind uwtable
define dso_local i64 @lde_(ptr noundef %0, ptr noundef %1, ptr noundef %2) #1 {
  %4 = alloca ptr, align 8
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i64, align 8
  %8 = alloca i64, align 8
  %9 = alloca i64, align 8
  store ptr %0, ptr %4, align 8, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !5
  store ptr %2, ptr %6, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  %10 = load ptr, ptr %5, align 8, !tbaa !5
  %11 = getelementptr inbounds double, ptr %10, i32 -1
  store ptr %11, ptr %5, align 8, !tbaa !5
  %12 = load ptr, ptr %4, align 8, !tbaa !5
  %13 = getelementptr inbounds double, ptr %12, i32 -1
  store ptr %13, ptr %4, align 8, !tbaa !5
  %14 = load ptr, ptr %6, align 8, !tbaa !5
  %15 = load i64, ptr %14, align 8, !tbaa !9
  store i64 %15, ptr %7, align 8, !tbaa !9
  store i64 1, ptr %9, align 8, !tbaa !9
  br label %16

16:                                               ; preds = %32, %3
  %17 = load i64, ptr %9, align 8, !tbaa !9
  %18 = load i64, ptr %7, align 8, !tbaa !9
  %19 = icmp sle i64 %17, %18
  br i1 %19, label %20, label %35

20:                                               ; preds = %16
  %21 = load ptr, ptr %4, align 8, !tbaa !5
  %22 = load i64, ptr %9, align 8, !tbaa !9
  %23 = getelementptr inbounds double, ptr %21, i64 %22
  %24 = load double, ptr %23, align 8, !tbaa !11
  %25 = load ptr, ptr %5, align 8, !tbaa !5
  %26 = load i64, ptr %9, align 8, !tbaa !9
  %27 = getelementptr inbounds double, ptr %25, i64 %26
  %28 = load double, ptr %27, align 8, !tbaa !11
  %29 = fcmp une double %24, %28
  br i1 %29, label %30, label %31

30:                                               ; preds = %20
  br label %36

31:                                               ; preds = %20
  br label %32

32:                                               ; preds = %31
  %33 = load i64, ptr %9, align 8, !tbaa !9
  %34 = add nsw i64 %33, 1
  store i64 %34, ptr %9, align 8, !tbaa !9
  br label %16, !llvm.loop !13

35:                                               ; preds = %16
  store i64 1, ptr %8, align 8, !tbaa !9
  br label %37

36:                                               ; preds = %30
  store i64 0, ptr %8, align 8, !tbaa !9
  br label %37

37:                                               ; preds = %36, %35
  %38 = load i64, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  ret i64 %38
}

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

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #1 = { 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 = { 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/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"double", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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"

; Function Attrs: nofree norecurse nosync nounwind memory(argmem: read) uwtable
define dso_local range(i64 0, 2) i64 @lde_(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, ptr nocapture noundef readonly %2) local_unnamed_addr #0 {
  %4 = getelementptr inbounds i8, ptr %1, i64 -8
  %5 = getelementptr inbounds i8, ptr %0, i64 -8
  %6 = load i64, ptr %2, align 8, !tbaa !5
  %.not11 = icmp slt i64 %6, 1
  br i1 %.not11, label %._crit_edge, label %.lr.ph

7:                                                ; preds = %.lr.ph
  %8 = add nuw i64 %.012, 1
  %exitcond.not = icmp eq i64 %.012, %6
  br i1 %exitcond.not, label %._crit_edge, label %.lr.ph, !llvm.loop !9

.lr.ph:                                           ; preds = %3, %7
  %.012 = phi i64 [ %8, %7 ], [ 1, %3 ]
  %9 = getelementptr inbounds double, ptr %5, i64 %.012
  %10 = load double, ptr %9, align 8, !tbaa !11
  %11 = getelementptr inbounds double, ptr %4, i64 %.012
  %12 = load double, ptr %11, align 8, !tbaa !11
  %13 = fcmp une double %10, %12
  br i1 %13, label %._crit_edge, label %7

._crit_edge:                                      ; preds = %7, %.lr.ph, %3
  %.010 = phi i64 [ 1, %3 ], [ 0, %.lr.ph ], [ 1, %7 ]
  ret i64 %.010
}

attributes #0 = { nofree norecurse nosync nounwind memory(argmem: read) 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" }

!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 = !{!"long", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}
!11 = !{!12, !12, i64 0}
!12 = !{!"double", !7, i64 0}


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