; LLVM IR from devicehive/esp8266-firmware :: firmware-src/sources (main)

; 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 i32 @user_rf_cal_sector_set() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %1) #3
  %3 = call i32 @system_get_flash_size_map()
  store i32 %3, ptr %1, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  store i32 0, ptr %2, align 4, !tbaa !5
  %4 = load i32, ptr %1, align 4, !tbaa !5
  switch i32 %4, label %9 [
    i32 0, label %5
    i32 2, label %6
    i32 3, label %7
    i32 5, label %7
    i32 4, label %8
    i32 6, label %8
  ]

5:                                                ; preds = %0
  store i32 120, ptr %2, align 4, !tbaa !5
  br label %10

6:                                                ; preds = %0
  store i32 251, ptr %2, align 4, !tbaa !5
  br label %10

7:                                                ; preds = %0, %0
  store i32 507, ptr %2, align 4, !tbaa !5
  br label %10

8:                                                ; preds = %0, %0
  store i32 1019, ptr %2, align 4, !tbaa !5
  br label %10

9:                                                ; preds = %0
  store i32 0, ptr %2, align 4, !tbaa !5
  br label %10

10:                                               ; preds = %9, %8, %7, %6, %5
  %11 = load i32, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %1) #3
  ret i32 %11
}

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

declare i32 @system_get_flash_size_map() #2

; 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 = { "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 #3 = { 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"}


; 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"

@switch.table.user_rf_cal_sector_set = private unnamed_addr constant [7 x i32] [i32 120, i32 0, i32 251, i32 507, i32 1019, i32 507, i32 1019], align 4

; Function Attrs: nounwind uwtable
define dso_local range(i32 0, 1020) i32 @user_rf_cal_sector_set() local_unnamed_addr #0 {
  %1 = tail call i32 @system_get_flash_size_map() #2
  %2 = icmp ult i32 %1, 7
  br i1 %2, label %switch.lookup, label %4

switch.lookup:                                    ; preds = %0
  %3 = zext nneg i32 %1 to i64
  %switch.gep = getelementptr inbounds [7 x i32], ptr @switch.table.user_rf_cal_sector_set, i64 0, i64 %3
  %switch.load = load i32, ptr %switch.gep, align 4
  br label %4

4:                                                ; preds = %0, %switch.lookup
  %.0 = phi i32 [ %switch.load, %switch.lookup ], [ 0, %0 ]
  ret i32 %.0
}

declare i32 @system_get_flash_size_map() local_unnamed_addr #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 = { "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)"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,SROAPass,SimplifyCFGPass,TailCallElimPass