; LLVM IR from EntityFX/anybench :: src/benchmarks/generic/dhrystone (dhry_1)

; 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"

@Int_Glob = external dso_local global i32, align 4
@Ch_1_Glob = external dso_local global i8, align 1

; 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 void @Proc_2(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  store ptr %0, ptr %2, align 8, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #2
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #2
  %5 = load ptr, ptr %2, align 8, !tbaa !5
  %6 = load i32, ptr %5, align 4, !tbaa !9
  %7 = add nsw i32 %6, 10
  store i32 %7, ptr %3, align 4, !tbaa !9
  br label %8

8:                                                ; preds = %20, %1
  %9 = load i8, ptr @Ch_1_Glob, align 1, !tbaa !11
  %10 = sext i8 %9 to i32
  %11 = icmp eq i32 %10, 65
  br i1 %11, label %12, label %19

12:                                               ; preds = %8
  %13 = load i32, ptr %3, align 4, !tbaa !9
  %14 = sub nsw i32 %13, 1
  store i32 %14, ptr %3, align 4, !tbaa !9
  %15 = load i32, ptr %3, align 4, !tbaa !9
  %16 = load i32, ptr @Int_Glob, align 4, !tbaa !9
  %17 = sub nsw i32 %15, %16
  %18 = load ptr, ptr %2, align 8, !tbaa !5
  store i32 %17, ptr %18, align 4, !tbaa !9
  store i32 0, ptr %4, align 4, !tbaa !9
  br label %19

19:                                               ; preds = %12, %8
  br label %20

20:                                               ; preds = %19
  %21 = load i32, ptr %4, align 4, !tbaa !9
  %22 = icmp ne i32 %21, 0
  br i1 %22, label %8, label %23, !llvm.loop !12

23:                                               ; preds = %20
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #2
  ret void
}

; 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 = !{!"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"

@Int_Glob = external dso_local local_unnamed_addr global i32, align 4
@Ch_1_Glob = external dso_local local_unnamed_addr global i8, align 1

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(read, argmem: readwrite, inaccessiblemem: none) uwtable
define dso_local void @Proc_2(ptr nocapture noundef %0) local_unnamed_addr #0 {
  %2 = load i8, ptr @Ch_1_Glob, align 1, !tbaa !5
  %3 = icmp eq i8 %2, 65
  br i1 %3, label %4, label %9

4:                                                ; preds = %1
  %5 = load i32, ptr %0, align 4, !tbaa !8
  %6 = add nsw i32 %5, 9
  %7 = load i32, ptr @Int_Glob, align 4, !tbaa !8
  %8 = sub i32 %6, %7
  store i32 %8, ptr %0, align 4, !tbaa !8
  br label %9

9:                                                ; preds = %4, %1
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(read, argmem: readwrite, 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 = !{!9, !9, i64 0}
!9 = !{!"int", !6, i64 0}


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