; LLVM IR from CactiLab/Sherloc-Cortex-M-CFVD :: Sherloc_runtime/evaluation/src/sqrt (libsqrt)

; 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
declare dso_local float @sqrtfcn(float noundef) #0

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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @benchmark_sqrt() #0 {
  %1 = alloca float, align 4
  %2 = alloca float, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #2
  store float 0.000000e+00, ptr %1, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #2
  store volatile float 0.000000e+00, ptr %2, align 4, !tbaa !5
  store float 0.000000e+00, ptr %1, align 4, !tbaa !5
  br label %3

3:                                                ; preds = %12, %0
  %4 = load float, ptr %1, align 4, !tbaa !5
  %5 = fpext float %4 to double
  %6 = fcmp olt double %5, 1.000000e+04
  br i1 %6, label %7, label %17

7:                                                ; preds = %3
  %8 = load float, ptr %1, align 4, !tbaa !5
  %9 = call float @sqrtfcn(float noundef %8)
  %10 = load volatile float, ptr %2, align 4, !tbaa !5
  %11 = fadd float %10, %9
  store volatile float %11, ptr %2, align 4, !tbaa !5
  br label %12

12:                                               ; preds = %7
  %13 = load float, ptr %1, align 4, !tbaa !5
  %14 = fpext float %13 to double
  %15 = fadd double %14, 1.000000e+02
  %16 = fptrunc double %15 to float
  store float %16, ptr %1, align 4, !tbaa !5
  br label %3, !llvm.loop !9

17:                                               ; preds = %3
  %18 = load volatile float, ptr %2, align 4, !tbaa !5
  %19 = fmul float %18, 1.000000e+05
  %20 = fptosi float %19 to i32
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #2
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #2
  ret i32 %20
}

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 = !{!"float", !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
declare dso_local float @sqrtfcn(float noundef) local_unnamed_addr #0

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

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

; Function Attrs: nounwind uwtable
define dso_local i32 @benchmark_sqrt() local_unnamed_addr #0 {
  %1 = alloca float, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %1)
  store volatile float 0.000000e+00, ptr %1, align 4, !tbaa !5
  br label %2

2:                                                ; preds = %0, %2
  %.06.int = phi i32 [ 0, %0 ], [ %.int, %2 ]
  %indvar.conv = uitofp nneg i32 %.06.int to float
  %3 = tail call float @sqrtfcn(float noundef %indvar.conv)
  %.0..0..0..0. = load volatile float, ptr %1, align 4, !tbaa !5
  %4 = fadd float %3, %.0..0..0..0.
  store volatile float %4, ptr %1, align 4, !tbaa !5
  %.int = add nuw nsw i32 %.06.int, 100
  %5 = icmp ult i32 %.06.int, 9900
  br i1 %5, label %2, label %6, !llvm.loop !9

6:                                                ; preds = %2
  %.0..0..0..0.1 = load volatile float, ptr %1, align 4, !tbaa !5
  %7 = fmul float %.0..0..0..0.1, 1.000000e+05
  %8 = fptosi float %7 to i32
  call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %1)
  ret i32 %8
}

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }

!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 = !{!"float", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = distinct !{!9, !10}
!10 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: CorrelatedValuePropagationPass,EarlyCSEPass,GlobalOptPass,IndVarSimplifyPass,InferFunctionAttrsPass,InstCombinePass,LoopRotatePass,ReassociatePass,SROAPass,SimplifyCFGPass,TailCallElimPass