; LLVM IR from FedericaPaoli1/stm32-speech-recognition-and-traduction :: Core/Src (execution_time)

; 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 void @execution_time_init() #0 {
  %1 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #2
  %2 = load i32, ptr inttoptr (i64 3758100480 to ptr), align 4, !tbaa !5
  %3 = icmp ne i32 %2, 0
  br i1 %3, label %4, label %9

4:                                                ; preds = %0
  %5 = load i32, ptr inttoptr (i64 3758157308 to ptr), align 4, !tbaa !5
  %6 = or i32 %5, 16777216
  store i32 %6, ptr inttoptr (i64 3758157308 to ptr), align 4, !tbaa !5
  store i32 0, ptr inttoptr (i64 3758100484 to ptr), align 4, !tbaa !5
  %7 = load i32, ptr inttoptr (i64 3758100480 to ptr), align 4, !tbaa !5
  %8 = or i32 %7, 1
  store i32 %8, ptr inttoptr (i64 3758100480 to ptr), align 4, !tbaa !5
  br label %9

9:                                                ; preds = %4, %0
  store i32 0, ptr %1, align 4, !tbaa !5
  br label %10

10:                                               ; preds = %15, %9
  %11 = load i32, ptr %1, align 4, !tbaa !5
  %12 = icmp ult i32 %11, 3
  br i1 %12, label %13, label %18

13:                                               ; preds = %10
  %14 = load i32, ptr %1, align 4, !tbaa !5
  call void @execution_time_clear(i32 noundef %14)
  br label %15

15:                                               ; preds = %13
  %16 = load i32, ptr %1, align 4, !tbaa !5
  %17 = add i32 %16, 1
  store i32 %17, ptr %1, align 4, !tbaa !5
  br label %10, !llvm.loop !9

18:                                               ; preds = %10
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #2
  ret void
}

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

; Function Attrs: nounwind uwtable
declare dso_local void @execution_time_clear(i32 noundef) #0

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

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 = { 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"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: nounwind uwtable
define dso_local void @execution_time_init() local_unnamed_addr #0 {
  %1 = load i32, ptr inttoptr (i64 3758100480 to ptr), align 4096, !tbaa !5
  %.not = icmp eq i32 %1, 0
  br i1 %.not, label %7, label %2

2:                                                ; preds = %0
  %3 = load i32, ptr inttoptr (i64 3758157308 to ptr), align 4, !tbaa !5
  %4 = or i32 %3, 16777216
  store i32 %4, ptr inttoptr (i64 3758157308 to ptr), align 4, !tbaa !5
  store i32 0, ptr inttoptr (i64 3758100484 to ptr), align 4, !tbaa !5
  %5 = load i32, ptr inttoptr (i64 3758100480 to ptr), align 4096, !tbaa !5
  %6 = or i32 %5, 1
  store i32 %6, ptr inttoptr (i64 3758100480 to ptr), align 4096, !tbaa !5
  br label %7

7:                                                ; preds = %2, %0
  tail call void @execution_time_clear(i32 noundef 0)
  tail call void @execution_time_clear(i32 noundef 1)
  tail call void @execution_time_clear(i32 noundef 2)
  ret void
}

; Function Attrs: nounwind uwtable
declare dso_local void @execution_time_clear(i32 noundef) local_unnamed_addr #0

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


; Effective O3 passes: GVNPass,GlobalOptPass,IPSCCPPass,IndVarSimplifyPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,SROAPass,SimplifyCFGPass,TailCallElimPass