; LLVM IR from lichen-community-systems/signaletic :: hosts/daisy/vendor/libDaisy/Drivers/STM32H7xx_HAL_Driver/Src (EnableHeaderParsing)

; 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.JPEG_HandleTypeDef = type { ptr, %struct.JPEG_ConfTypeDef, ptr, ptr, i32, i32, i32, i32, ptr, ptr, i8, ptr, ptr, ptr, ptr, i32, i32, i32, i32 }
%struct.JPEG_ConfTypeDef = type { i32, i32, i32, i32, i32 }
%struct.JPEG_TypeDef = type { i32, i32, i32, i32, i32, i32, i32, i32, [4 x i32], i32, i32, i32, i32, i32, i32, [2 x i32], [16 x i32], [16 x i32], [16 x i32], [16 x i32], [16 x i32], [32 x i32], [84 x i32], [103 x i32], i32, [88 x i32], [88 x i32], [8 x i32], [8 x i32] }

; Function Attrs: nounwind uwtable
define dso_local i32 @HAL_JPEG_EnableHeaderParsing(ptr noundef %0) #0 {
  %2 = alloca i32, align 4
  %3 = alloca ptr, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  br label %4

4:                                                ; preds = %1
  %5 = load ptr, ptr %3, align 8, !tbaa !5
  %6 = getelementptr inbounds %struct.JPEG_HandleTypeDef, ptr %5, i32 0, i32 15
  %7 = load i32, ptr %6, align 8, !tbaa !9
  %8 = icmp eq i32 %7, 1
  br i1 %8, label %9, label %10

9:                                                ; preds = %4
  store i32 2, ptr %2, align 4
  br label %41

10:                                               ; preds = %4
  %11 = load ptr, ptr %3, align 8, !tbaa !5
  %12 = getelementptr inbounds %struct.JPEG_HandleTypeDef, ptr %11, i32 0, i32 15
  store i32 1, ptr %12, align 8, !tbaa !9
  br label %13

13:                                               ; preds = %10
  br label %14

14:                                               ; preds = %13
  %15 = load ptr, ptr %3, align 8, !tbaa !5
  %16 = getelementptr inbounds %struct.JPEG_HandleTypeDef, ptr %15, i32 0, i32 16
  %17 = load volatile i32, ptr %16, align 4, !tbaa !13
  %18 = icmp eq i32 %17, 1
  br i1 %18, label %19, label %36

19:                                               ; preds = %14
  %20 = load ptr, ptr %3, align 8, !tbaa !5
  %21 = getelementptr inbounds %struct.JPEG_HandleTypeDef, ptr %20, i32 0, i32 16
  store volatile i32 2, ptr %21, align 4, !tbaa !13
  %22 = load ptr, ptr %3, align 8, !tbaa !5
  %23 = getelementptr inbounds %struct.JPEG_HandleTypeDef, ptr %22, i32 0, i32 0
  %24 = load ptr, ptr %23, align 8, !tbaa !14
  %25 = getelementptr inbounds %struct.JPEG_TypeDef, ptr %24, i32 0, i32 1
  %26 = load volatile i32, ptr %25, align 4, !tbaa !15
  %27 = zext i32 %26 to i64
  %28 = or i64 %27, 256
  %29 = trunc i64 %28 to i32
  store volatile i32 %29, ptr %25, align 4, !tbaa !15
  br label %30

30:                                               ; preds = %19
  %31 = load ptr, ptr %3, align 8, !tbaa !5
  %32 = getelementptr inbounds %struct.JPEG_HandleTypeDef, ptr %31, i32 0, i32 15
  store i32 0, ptr %32, align 8, !tbaa !9
  br label %33

33:                                               ; preds = %30
  %34 = load ptr, ptr %3, align 8, !tbaa !5
  %35 = getelementptr inbounds %struct.JPEG_HandleTypeDef, ptr %34, i32 0, i32 16
  store volatile i32 1, ptr %35, align 4, !tbaa !13
  store i32 0, ptr %2, align 4
  br label %41

36:                                               ; preds = %14
  br label %37

37:                                               ; preds = %36
  %38 = load ptr, ptr %3, align 8, !tbaa !5
  %39 = getelementptr inbounds %struct.JPEG_HandleTypeDef, ptr %38, i32 0, i32 15
  store i32 0, ptr %39, align 8, !tbaa !9
  br label %40

40:                                               ; preds = %37
  store i32 2, ptr %2, align 4
  br label %41

41:                                               ; preds = %40, %33, %9
  %42 = load i32, ptr %2, align 4
  ret i32 %42
}

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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !12, i64 120}
!10 = !{!"", !6, i64 0, !11, i64 8, !6, i64 32, !6, i64 40, !12, i64 48, !12, i64 52, !12, i64 56, !12, i64 60, !6, i64 64, !6, i64 72, !7, i64 80, !6, i64 88, !6, i64 96, !6, i64 104, !6, i64 112, !12, i64 120, !12, i64 124, !12, i64 128, !12, i64 132}
!11 = !{!"", !12, i64 0, !12, i64 4, !12, i64 8, !12, i64 12, !12, i64 16}
!12 = !{!"int", !7, i64 0}
!13 = !{!10, !12, i64 124}
!14 = !{!10, !6, i64 0}
!15 = !{!16, !12, i64 4}
!16 = !{!"", !12, i64 0, !12, i64 4, !12, i64 8, !12, i64 12, !12, i64 16, !12, i64 20, !12, i64 24, !12, i64 28, !7, i64 32, !12, i64 48, !12, i64 52, !12, i64 56, !12, i64 60, !12, i64 64, !12, i64 68, !7, i64 72, !7, i64 80, !7, i64 144, !7, i64 208, !7, i64 272, !7, i64 336, !7, i64 400, !7, i64 528, !7, i64 864, !12, i64 1276, !7, i64 1280, !7, i64 1632, !7, i64 1984, !7, i64 2016}


; 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: nofree norecurse nounwind uwtable
define dso_local range(i32 0, 3) i32 @HAL_JPEG_EnableHeaderParsing(ptr noundef %0) local_unnamed_addr #0 {
  %2 = getelementptr inbounds i8, ptr %0, i64 120
  %3 = load i32, ptr %2, align 8, !tbaa !5
  %4 = icmp eq i32 %3, 1
  br i1 %4, label %15, label %5

5:                                                ; preds = %1
  %6 = getelementptr inbounds i8, ptr %0, i64 124
  %7 = load volatile i32, ptr %6, align 4, !tbaa !12
  %8 = icmp eq i32 %7, 1
  br i1 %8, label %9, label %14

9:                                                ; preds = %5
  store volatile i32 2, ptr %6, align 4, !tbaa !12
  %10 = load ptr, ptr %0, align 8, !tbaa !13
  %11 = getelementptr inbounds i8, ptr %10, i64 4
  %12 = load volatile i32, ptr %11, align 4, !tbaa !14
  %13 = or i32 %12, 256
  store volatile i32 %13, ptr %11, align 4, !tbaa !14
  store i32 0, ptr %2, align 8, !tbaa !5
  store volatile i32 1, ptr %6, align 4, !tbaa !12
  br label %15

14:                                               ; preds = %5
  store i32 0, ptr %2, align 8, !tbaa !5
  br label %15

15:                                               ; preds = %1, %14, %9
  %.0 = phi i32 [ 0, %9 ], [ 2, %14 ], [ 2, %1 ]
  ret i32 %.0
}

attributes #0 = { nofree norecurse 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, !11, i64 120}
!6 = !{!"", !7, i64 0, !10, i64 8, !7, i64 32, !7, i64 40, !11, i64 48, !11, i64 52, !11, i64 56, !11, i64 60, !7, i64 64, !7, i64 72, !8, i64 80, !7, i64 88, !7, i64 96, !7, i64 104, !7, i64 112, !11, i64 120, !11, i64 124, !11, i64 128, !11, i64 132}
!7 = !{!"any pointer", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !11, i64 16}
!11 = !{!"int", !8, i64 0}
!12 = !{!6, !11, i64 124}
!13 = !{!6, !7, i64 0}
!14 = !{!15, !11, i64 4}
!15 = !{!"", !11, i64 0, !11, i64 4, !11, i64 8, !11, i64 12, !11, i64 16, !11, i64 20, !11, i64 24, !11, i64 28, !8, i64 32, !11, i64 48, !11, i64 52, !11, i64 56, !11, i64 60, !11, i64 64, !11, i64 68, !8, i64 72, !8, i64 80, !8, i64 144, !8, i64 208, !8, i64 272, !8, i64 336, !8, i64 400, !8, i64 528, !8, i64 864, !11, i64 1276, !8, i64 1280, !8, i64 1632, !8, i64 1984, !8, i64 2016}


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