; LLVM IR from matz/streem :: src (string)

; 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 @strm_str_intern_p(i64 noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca i64, align 8
  store i64 %0, ptr %3, align 8, !tbaa !5
  %4 = load i64, ptr %3, align 8, !tbaa !5
  %5 = and i64 %4, -281474976710656
  switch i64 %5, label %8 [
    i64 -2533274790395904, label %6
    i64 -2251799813685248, label %6
    i64 -1688849860263936, label %6
    i64 -1970324836974592, label %7
  ]

6:                                                ; preds = %1, %1, %1
  store i32 1, ptr %2, align 4
  br label %9

7:                                                ; preds = %1
  br label %8

8:                                                ; preds = %7, %1
  store i32 0, ptr %2, align 4
  br label %9

9:                                                ; preds = %8, %6
  %10 = load i32, ptr %2, align 4
  ret i32 %10
}

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 = !{!"long", !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.strm_str_intern_p = private unnamed_addr constant [4 x i32] [i32 1, i32 1, i32 0, i32 1], align 4

; Function Attrs: mustprogress nofree norecurse nosync nounwind willreturn memory(none) uwtable
define dso_local range(i32 0, 2) i32 @strm_str_intern_p(i64 noundef %0) local_unnamed_addr #0 {
  %2 = add i64 %0, 2533274790395904
  %3 = icmp ult i64 %2, 1125899906842624
  br i1 %3, label %switch.lookup, label %5

switch.lookup:                                    ; preds = %1
  %4 = lshr i64 %2, 48
  %switch.gep = getelementptr inbounds [4 x i32], ptr @switch.table.strm_str_intern_p, i64 0, i64 %4
  %switch.load = load i32, ptr %switch.gep, align 4
  br label %5

5:                                                ; preds = %1, %switch.lookup
  %.0 = phi i32 [ %switch.load, %switch.lookup ], [ 0, %1 ]
  ret i32 %.0
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(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)"}


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