; LLVM IR from devicehive/esp8266-firmware :: firmware-src/sources (dhterminal_commandline)

; 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 @line_containt_command(ptr noundef %0, ptr noundef %1, i32 noundef %2) #0 {
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca i32, align 4
  store ptr %0, ptr %5, align 8, !tbaa !5
  store ptr %1, ptr %6, align 8, !tbaa !5
  store i32 %2, ptr %7, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %26, %3
  %9 = load ptr, ptr %6, align 8, !tbaa !5
  %10 = load i8, ptr %9, align 1, !tbaa !11
  %11 = icmp ne i8 %10, 0
  br i1 %11, label %12, label %31

12:                                               ; preds = %8
  %13 = load ptr, ptr %5, align 8, !tbaa !5
  %14 = load i8, ptr %13, align 1, !tbaa !11
  %15 = sext i8 %14 to i32
  %16 = icmp eq i32 %15, 0
  br i1 %16, label %25, label %17

17:                                               ; preds = %12
  %18 = load ptr, ptr %5, align 8, !tbaa !5
  %19 = load i8, ptr %18, align 1, !tbaa !11
  %20 = sext i8 %19 to i32
  %21 = load ptr, ptr %6, align 8, !tbaa !5
  %22 = load i8, ptr %21, align 1, !tbaa !11
  %23 = sext i8 %22 to i32
  %24 = icmp ne i32 %20, %23
  br i1 %24, label %25, label %26

25:                                               ; preds = %17, %12
  store i32 0, ptr %4, align 4
  br label %46

26:                                               ; preds = %17
  %27 = load ptr, ptr %5, align 8, !tbaa !5
  %28 = getelementptr inbounds i8, ptr %27, i32 1
  store ptr %28, ptr %5, align 8, !tbaa !5
  %29 = load ptr, ptr %6, align 8, !tbaa !5
  %30 = getelementptr inbounds i8, ptr %29, i32 1
  store ptr %30, ptr %6, align 8, !tbaa !5
  br label %8, !llvm.loop !12

31:                                               ; preds = %8
  %32 = load i32, ptr %7, align 4, !tbaa !9
  %33 = icmp eq i32 %32, 0
  br i1 %33, label %44, label %34

34:                                               ; preds = %31
  %35 = load ptr, ptr %5, align 8, !tbaa !5
  %36 = load i8, ptr %35, align 1, !tbaa !11
  %37 = sext i8 %36 to i32
  %38 = icmp eq i32 %37, 0
  br i1 %38, label %44, label %39

39:                                               ; preds = %34
  %40 = load ptr, ptr %5, align 8, !tbaa !5
  %41 = load i8, ptr %40, align 1, !tbaa !11
  %42 = sext i8 %41 to i32
  %43 = icmp eq i32 %42, 32
  br i1 %43, label %44, label %45

44:                                               ; preds = %39, %34, %31
  store i32 1, ptr %4, align 4
  br label %46

45:                                               ; preds = %39
  store i32 0, ptr %4, align 4
  br label %46

46:                                               ; preds = %45, %44, %25
  %47 = load i32, ptr %4, align 4
  ret i32 %47
}

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" }

!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 = !{!"int", !7, i64 0}
!11 = !{!7, !7, i64 0}
!12 = distinct !{!12, !13}
!13 = !{!"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(read, inaccessiblemem: none) uwtable
define dso_local range(i32 0, 2) i32 @line_containt_command(ptr nocapture noundef readonly %0, ptr nocapture noundef readonly %1, i32 noundef %2) local_unnamed_addr #0 {
  %4 = load i8, ptr %1, align 1, !tbaa !5
  %.not16 = icmp eq i8 %4, 0
  br i1 %.not16, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %3, %7
  %5 = phi i8 [ %10, %7 ], [ %4, %3 ]
  %.0918 = phi ptr [ %9, %7 ], [ %1, %3 ]
  %.01017 = phi ptr [ %8, %7 ], [ %0, %3 ]
  %6 = load i8, ptr %.01017, align 1, !tbaa !5
  %.not14 = icmp eq i8 %6, %5
  br i1 %.not14, label %7, label %.loopexit

7:                                                ; preds = %.lr.ph
  %8 = getelementptr inbounds i8, ptr %.01017, i64 1
  %9 = getelementptr inbounds i8, ptr %.0918, i64 1
  %10 = load i8, ptr %9, align 1, !tbaa !5
  %.not = icmp eq i8 %10, 0
  br i1 %.not, label %._crit_edge, label %.lr.ph, !llvm.loop !8

._crit_edge:                                      ; preds = %7, %3
  %.010.lcssa = phi ptr [ %0, %3 ], [ %8, %7 ]
  %11 = icmp eq i32 %2, 0
  br i1 %11, label %.loopexit, label %12

12:                                               ; preds = %._crit_edge
  %13 = load i8, ptr %.010.lcssa, align 1, !tbaa !5
  %switch.and = and i8 %13, -33
  %switch.selectcmp = icmp eq i8 %switch.and, 0
  %14 = zext i1 %switch.selectcmp to i32
  br label %.loopexit

.loopexit:                                        ; preds = %.lr.ph, %12, %._crit_edge
  %.0 = phi i32 [ 1, %._crit_edge ], [ %14, %12 ], [ 0, %.lr.ph ]
  ret i32 %.0
}

attributes #0 = { nofree norecurse nosync nounwind memory(read, inaccessiblemem: none) 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 = !{!"omnipotent char", !7, i64 0}
!7 = !{!"Simple C/C++ TBAA"}
!8 = distinct !{!8, !9}
!9 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,IPSCCPPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass