; LLVM IR from ARMmbed/mbed-crypto :: library (ecp)

; 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.mbedtls_ecp_curve_info = type { i32, i16, i16, ptr }

@mbedtls_ecp_grp_id_list.init_done = external hidden global i32, align 4
@ecp_supported_grp_id = external hidden global [12 x i32], align 16

; Function Attrs: nounwind uwtable
declare dso_local ptr @mbedtls_ecp_curve_list() #0

; Function Attrs: nounwind uwtable
define dso_local ptr @mbedtls_ecp_grp_id_list() #0 {
  %1 = alloca i64, align 8
  %2 = alloca ptr, align 8
  %3 = load i32, ptr @mbedtls_ecp_grp_id_list.init_done, align 4, !tbaa !5
  %4 = icmp ne i32 %3, 0
  br i1 %4, label %25, label %5

5:                                                ; preds = %0
  call void @llvm.lifetime.start.p0(i64 8, ptr %1) #2
  store i64 0, ptr %1, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %2) #2
  %6 = call ptr @mbedtls_ecp_curve_list()
  store ptr %6, ptr %2, align 8, !tbaa !11
  br label %7

7:                                                ; preds = %19, %5
  %8 = load ptr, ptr %2, align 8, !tbaa !11
  %9 = getelementptr inbounds %struct.mbedtls_ecp_curve_info, ptr %8, i32 0, i32 0
  %10 = load i32, ptr %9, align 8, !tbaa !13
  %11 = icmp ne i32 %10, 0
  br i1 %11, label %12, label %22

12:                                               ; preds = %7
  %13 = load ptr, ptr %2, align 8, !tbaa !11
  %14 = getelementptr inbounds %struct.mbedtls_ecp_curve_info, ptr %13, i32 0, i32 0
  %15 = load i32, ptr %14, align 8, !tbaa !13
  %16 = load i64, ptr %1, align 8, !tbaa !9
  %17 = add i64 %16, 1
  store i64 %17, ptr %1, align 8, !tbaa !9
  %18 = getelementptr inbounds [12 x i32], ptr @ecp_supported_grp_id, i64 0, i64 %16
  store i32 %15, ptr %18, align 4, !tbaa !5
  br label %19

19:                                               ; preds = %12
  %20 = load ptr, ptr %2, align 8, !tbaa !11
  %21 = getelementptr inbounds %struct.mbedtls_ecp_curve_info, ptr %20, i32 1
  store ptr %21, ptr %2, align 8, !tbaa !11
  br label %7, !llvm.loop !16

22:                                               ; preds = %7
  %23 = load i64, ptr %1, align 8, !tbaa !9
  %24 = getelementptr inbounds [12 x i32], ptr @ecp_supported_grp_id, i64 0, i64 %23
  store i32 0, ptr %24, align 4, !tbaa !5
  store i32 1, ptr @mbedtls_ecp_grp_id_list.init_done, align 4, !tbaa !5
  call void @llvm.lifetime.end.p0(i64 8, ptr %2) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %1) #2
  br label %25

25:                                               ; preds = %22, %0
  ret ptr @ecp_supported_grp_id
}

; 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

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 = !{!10, !10, i64 0}
!10 = !{!"long", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = !{!14, !6, i64 0}
!14 = !{!"mbedtls_ecp_curve_info", !6, i64 0, !15, i64 4, !15, i64 6, !12, i64 8}
!15 = !{!"short", !7, i64 0}
!16 = distinct !{!16, !17}
!17 = !{!"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"

@mbedtls_ecp_grp_id_list.init_done = external hidden local_unnamed_addr global i32, align 4
@ecp_supported_grp_id = external hidden global [12 x i32], align 16

; Function Attrs: nounwind uwtable
declare dso_local ptr @mbedtls_ecp_curve_list() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef nonnull ptr @mbedtls_ecp_grp_id_list() local_unnamed_addr #0 {
  %1 = load i32, ptr @mbedtls_ecp_grp_id_list.init_done, align 4, !tbaa !5
  %.not = icmp eq i32 %1, 0
  br i1 %.not, label %2, label %11

2:                                                ; preds = %0
  %3 = tail call ptr @mbedtls_ecp_curve_list()
  %4 = load i32, ptr %3, align 8, !tbaa !9
  %.not67 = icmp eq i32 %4, 0
  br i1 %.not67, label %._crit_edge, label %.lr.ph

.lr.ph:                                           ; preds = %2, %.lr.ph
  %5 = phi i32 [ %9, %.lr.ph ], [ %4, %2 ]
  %.09 = phi ptr [ %8, %.lr.ph ], [ %3, %2 ]
  %.048 = phi i64 [ %6, %.lr.ph ], [ 0, %2 ]
  %6 = add i64 %.048, 1
  %7 = getelementptr inbounds [12 x i32], ptr @ecp_supported_grp_id, i64 0, i64 %.048
  store i32 %5, ptr %7, align 4, !tbaa !5
  %8 = getelementptr inbounds i8, ptr %.09, i64 16
  %9 = load i32, ptr %8, align 8, !tbaa !9
  %.not6 = icmp eq i32 %9, 0
  br i1 %.not6, label %._crit_edge, label %.lr.ph, !llvm.loop !13

._crit_edge:                                      ; preds = %.lr.ph, %2
  %.04.lcssa = phi i64 [ 0, %2 ], [ %6, %.lr.ph ]
  %10 = getelementptr inbounds [12 x i32], ptr @ecp_supported_grp_id, i64 0, i64 %.04.lcssa
  store i32 0, ptr %10, align 4, !tbaa !5
  store i32 1, ptr @mbedtls_ecp_grp_id_list.init_done, align 4, !tbaa !5
  br label %11

11:                                               ; preds = %._crit_edge, %0
  ret ptr @ecp_supported_grp_id
}

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"}
!9 = !{!10, !6, i64 0}
!10 = !{!"mbedtls_ecp_curve_info", !6, i64 0, !11, i64 4, !11, i64 6, !12, i64 8}
!11 = !{!"short", !7, i64 0}
!12 = !{!"any pointer", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"llvm.loop.mustprogress"}


; Effective O3 passes: EarlyCSEPass,GVNPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,InstSimplifyPass,JumpThreadingPass,LCSSAPass,LoopRotatePass,LoopSimplifyPass,LoopUnrollPass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass