; 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"

%struct.time_statistics = type { i32, i32, i32, i32 }

@time_statistics_blocks = external dso_local global [3 x %struct.time_statistics], align 16

; 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 @execution_time_clear(i32 noundef %0) #1 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  store i32 %0, ptr %2, align 4, !tbaa !5
  %4 = load i32, ptr %2, align 4, !tbaa !5
  %5 = icmp ult i32 %4, 3
  br i1 %5, label %6, label %18

6:                                                ; preds = %1
  call void @llvm.lifetime.start.p0(i64 8, ptr %3) #2
  %7 = load i32, ptr %2, align 4, !tbaa !5
  %8 = zext i32 %7 to i64
  %9 = getelementptr inbounds [3 x %struct.time_statistics], ptr @time_statistics_blocks, i64 0, i64 %8
  store ptr %9, ptr %3, align 8, !tbaa !9
  %10 = load ptr, ptr %3, align 8, !tbaa !9
  %11 = getelementptr inbounds %struct.time_statistics, ptr %10, i32 0, i32 0
  store i32 0, ptr %11, align 4, !tbaa !11
  %12 = load ptr, ptr %3, align 8, !tbaa !9
  %13 = getelementptr inbounds %struct.time_statistics, ptr %12, i32 0, i32 1
  store i32 0, ptr %13, align 4, !tbaa !13
  %14 = load ptr, ptr %3, align 8, !tbaa !9
  %15 = getelementptr inbounds %struct.time_statistics, ptr %14, i32 0, i32 3
  store i32 -1, ptr %15, align 4, !tbaa !14
  %16 = load ptr, ptr %3, align 8, !tbaa !9
  %17 = getelementptr inbounds %struct.time_statistics, ptr %16, i32 0, i32 2
  store i32 0, ptr %17, align 4, !tbaa !15
  call void @llvm.lifetime.end.p0(i64 8, ptr %3) #2
  br label %18

18:                                               ; preds = %6, %1
  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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !6, i64 0}
!12 = !{!"time_statistics", !6, i64 0, !6, i64 4, !6, i64 8, !6, i64 12}
!13 = !{!12, !6, i64 4}
!14 = !{!12, !6, i64 12}
!15 = !{!12, !6, i64 8}


; 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"

%struct.time_statistics = type { i32, i32, i32, i32 }

@time_statistics_blocks = external dso_local local_unnamed_addr global [3 x %struct.time_statistics], align 16

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: none, inaccessiblemem: none) uwtable
define dso_local void @execution_time_clear(i32 noundef %0) local_unnamed_addr #0 {
  %2 = icmp ult i32 %0, 3
  br i1 %2, label %3, label %6

3:                                                ; preds = %1
  %4 = zext nneg i32 %0 to i64
  %5 = getelementptr inbounds [3 x %struct.time_statistics], ptr @time_statistics_blocks, i64 0, i64 %4
  store <4 x i32> <i32 0, i32 0, i32 0, i32 -1>, ptr %5, align 16, !tbaa !5
  br label %6

6:                                                ; preds = %3, %1
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(write, argmem: none, 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 = !{!"int", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,IPSCCPPass,InferAlignmentPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass