; LLVM IR from fritzsedlazeck/SURVIVOR :: src/simulator/SV_Simulator.ll (Z8is_validc)

; 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: mustprogress nounwind uwtable
define dso_local noundef zeroext i1 @_Z8is_validc(i8 noundef signext %0) #0 {
  %2 = alloca i8, align 1
  store i8 %0, ptr %2, align 1, !tbaa !5
  %3 = load i8, ptr %2, align 1, !tbaa !5
  %4 = sext i8 %3 to i32
  %5 = icmp eq i32 %4, 65
  br i1 %5, label %38, label %6

6:                                                ; preds = %1
  %7 = load i8, ptr %2, align 1, !tbaa !5
  %8 = sext i8 %7 to i32
  %9 = icmp eq i32 %8, 67
  br i1 %9, label %38, label %10

10:                                               ; preds = %6
  %11 = load i8, ptr %2, align 1, !tbaa !5
  %12 = sext i8 %11 to i32
  %13 = icmp eq i32 %12, 82
  br i1 %13, label %38, label %14

14:                                               ; preds = %10
  %15 = load i8, ptr %2, align 1, !tbaa !5
  %16 = sext i8 %15 to i32
  %17 = icmp eq i32 %16, 88
  br i1 %17, label %38, label %18

18:                                               ; preds = %14
  %19 = load i8, ptr %2, align 1, !tbaa !5
  %20 = sext i8 %19 to i32
  %21 = icmp eq i32 %20, 84
  br i1 %21, label %36, label %22

22:                                               ; preds = %18
  %23 = load i8, ptr %2, align 1, !tbaa !5
  %24 = sext i8 %23 to i32
  %25 = icmp eq i32 %24, 71
  br i1 %25, label %36, label %26

26:                                               ; preds = %22
  %27 = load i8, ptr %2, align 1, !tbaa !5
  %28 = sext i8 %27 to i32
  %29 = icmp eq i32 %28, 78
  br i1 %29, label %34, label %30

30:                                               ; preds = %26
  %31 = load i8, ptr %2, align 1, !tbaa !5
  %32 = sext i8 %31 to i32
  %33 = icmp eq i32 %32, 77
  br label %34

34:                                               ; preds = %30, %26
  %35 = phi i1 [ true, %26 ], [ %33, %30 ]
  br label %36

36:                                               ; preds = %34, %22, %18
  %37 = phi i1 [ true, %22 ], [ true, %18 ], [ %35, %34 ]
  br label %38

38:                                               ; preds = %36, %14, %10, %6, %1
  %39 = phi i1 [ true, %14 ], [ true, %10 ], [ true, %6 ], [ true, %1 ], [ %37, %36 ]
  ret i1 %39
}

attributes #0 = { 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" }

!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++ 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"

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local noundef zeroext i1 @_Z8is_validc(i8 noundef signext %0) local_unnamed_addr #0 {
  %switch.tableidx = add i8 %0, -65
  %2 = icmp ult i8 %switch.tableidx, 24
  br i1 %2, label %switch.hole_check, label %3

3:                                                ; preds = %switch.hole_check, %1
  %4 = add i8 %0, -77
  %5 = icmp ult i8 %4, 2
  br label %switch.lookup

switch.hole_check:                                ; preds = %1
  %switch.maskindex = zext nneg i8 %switch.tableidx to i32
  %switch.shifted = lshr i32 9044037, %switch.maskindex
  %switch.lobit = trunc i32 %switch.shifted to i1
  br i1 %switch.lobit, label %switch.lookup, label %3

switch.lookup:                                    ; preds = %switch.hole_check, %3
  %6 = phi i1 [ %5, %3 ], [ true, %switch.hole_check ]
  ret i1 %6
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(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)"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass