; LLVM IR from apigee/apib :: third_party/http_parser (test)

; 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.http_parser = type { i32, i32, i64, i16, i16, i32, ptr }
%struct.message = type { ptr, ptr, i32, i32, i32, [2048 x i8], [2048 x i8], [2048 x i8], [2048 x i8], [2048 x i8], [2048 x i8], i64, ptr, ptr, i16, i32, i32, [13 x [2 x [2048 x i8]]], i32, i32, i32, [16 x i32], ptr, i16, i16, i32, i32, i32, i32, i32, i32 }

@.str.151 = external hidden unnamed_addr constant [76 x i8], align 1
@parser = external hidden global %struct.http_parser, align 8
@.str.153 = external hidden unnamed_addr constant [13 x i8], align 1
@messages = external hidden global [5 x %struct.message], align 16
@num_messages = external hidden global i32, align 4
@__PRETTY_FUNCTION__.headers_complete_cb = external hidden unnamed_addr constant [39 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @headers_complete_cb(ptr noundef %0) #1 {
  %2 = alloca ptr, align 8
  store ptr %0, ptr %2, align 8, !tbaa !5
  %3 = load ptr, ptr %2, align 8, !tbaa !5
  %4 = icmp eq ptr %3, @parser
  br i1 %4, label %5, label %6

5:                                                ; preds = %1
  br label %7

6:                                                ; preds = %1
  call void @__assert_fail(ptr noundef @.str.153, ptr noundef @.str.151, i32 noundef 2200, ptr noundef @__PRETTY_FUNCTION__.headers_complete_cb) #3
  unreachable

7:                                                ; preds = %5
  %8 = load i32, ptr getelementptr inbounds (%struct.http_parser, ptr @parser, i32 0, i32 5), align 4
  %9 = lshr i32 %8, 16
  %10 = and i32 %9, 255
  %11 = load i32, ptr @num_messages, align 4, !tbaa !9
  %12 = sext i32 %11 to i64
  %13 = getelementptr inbounds [5 x %struct.message], ptr @messages, i64 0, i64 %12
  %14 = getelementptr inbounds %struct.message, ptr %13, i32 0, i32 3
  store i32 %10, ptr %14, align 4, !tbaa !11
  %15 = load i32, ptr getelementptr inbounds (%struct.http_parser, ptr @parser, i32 0, i32 5), align 4
  %16 = and i32 %15, 65535
  %17 = load i32, ptr @num_messages, align 4, !tbaa !9
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [5 x %struct.message], ptr @messages, i64 0, i64 %18
  %20 = getelementptr inbounds %struct.message, ptr %19, i32 0, i32 4
  store i32 %16, ptr %20, align 8, !tbaa !15
  %21 = load i16, ptr getelementptr inbounds (%struct.http_parser, ptr @parser, i32 0, i32 3), align 8, !tbaa !16
  %22 = load i32, ptr @num_messages, align 4, !tbaa !9
  %23 = sext i32 %22 to i64
  %24 = getelementptr inbounds [5 x %struct.message], ptr @messages, i64 0, i64 %23
  %25 = getelementptr inbounds %struct.message, ptr %24, i32 0, i32 23
  store i16 %21, ptr %25, align 8, !tbaa !18
  %26 = load i16, ptr getelementptr inbounds (%struct.http_parser, ptr @parser, i32 0, i32 4), align 2, !tbaa !19
  %27 = load i32, ptr @num_messages, align 4, !tbaa !9
  %28 = sext i32 %27 to i64
  %29 = getelementptr inbounds [5 x %struct.message], ptr @messages, i64 0, i64 %28
  %30 = getelementptr inbounds %struct.message, ptr %29, i32 0, i32 24
  store i16 %26, ptr %30, align 2, !tbaa !20
  %31 = load i32, ptr @num_messages, align 4, !tbaa !9
  %32 = sext i32 %31 to i64
  %33 = getelementptr inbounds [5 x %struct.message], ptr @messages, i64 0, i64 %32
  %34 = getelementptr inbounds %struct.message, ptr %33, i32 0, i32 26
  store i32 1, ptr %34, align 8, !tbaa !21
  %35 = call i32 @http_should_keep_alive(ptr noundef @parser)
  %36 = load i32, ptr @num_messages, align 4, !tbaa !9
  %37 = sext i32 %36 to i64
  %38 = getelementptr inbounds [5 x %struct.message], ptr @messages, i64 0, i64 %37
  %39 = getelementptr inbounds %struct.message, ptr %38, i32 0, i32 18
  store i32 %35, ptr %39, align 4, !tbaa !22
  ret i32 0
}

declare i32 @http_should_keep_alive(ptr noundef) #2

attributes #0 = { noreturn nounwind "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 = { 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 #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 = { noreturn 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 = !{!"any pointer", !7, i64 0}
!7 = !{!"omnipotent char", !8, i64 0}
!8 = !{!"Simple C/C++ TBAA"}
!9 = !{!10, !10, i64 0}
!10 = !{!"int", !7, i64 0}
!11 = !{!12, !10, i64 20}
!12 = !{!"message", !6, i64 0, !6, i64 8, !10, i64 16, !10, i64 20, !10, i64 24, !7, i64 28, !7, i64 2076, !7, i64 4124, !7, i64 6172, !7, i64 8220, !7, i64 10268, !13, i64 12320, !6, i64 12328, !6, i64 12336, !14, i64 12344, !10, i64 12348, !10, i64 12352, !7, i64 12356, !10, i64 65604, !10, i64 65608, !10, i64 65612, !7, i64 65616, !6, i64 65680, !14, i64 65688, !14, i64 65690, !10, i64 65692, !10, i64 65696, !10, i64 65700, !10, i64 65704, !10, i64 65708, !10, i64 65712}
!13 = !{!"long", !7, i64 0}
!14 = !{!"short", !7, i64 0}
!15 = !{!12, !10, i64 24}
!16 = !{!17, !14, i64 16}
!17 = !{!"http_parser", !10, i64 0, !10, i64 0, !10, i64 1, !10, i64 2, !10, i64 3, !10, i64 3, !10, i64 3, !10, i64 4, !13, i64 8, !14, i64 16, !14, i64 18, !10, i64 20, !10, i64 22, !10, i64 23, !10, i64 23, !6, i64 24}
!18 = !{!12, !14, i64 65688}
!19 = !{!17, !14, i64 18}
!20 = !{!12, !14, i64 65690}
!21 = !{!12, !10, i64 65696}
!22 = !{!12, !10, i64 65604}


; 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"

%struct.http_parser = type { i32, i32, i64, i16, i16, i32, ptr }
%struct.message = type { ptr, ptr, i32, i32, i32, [2048 x i8], [2048 x i8], [2048 x i8], [2048 x i8], [2048 x i8], [2048 x i8], i64, ptr, ptr, i16, i32, i32, [13 x [2 x [2048 x i8]]], i32, i32, i32, [16 x i32], ptr, i16, i16, i32, i32, i32, i32, i32, i32 }

@.str.151 = external hidden unnamed_addr constant [76 x i8], align 1
@parser = external hidden global %struct.http_parser, align 8
@.str.153 = external hidden unnamed_addr constant [13 x i8], align 1
@messages = external hidden local_unnamed_addr global [5 x %struct.message], align 16
@num_messages = external hidden local_unnamed_addr global i32, align 4
@__PRETTY_FUNCTION__.headers_complete_cb = external hidden unnamed_addr constant [39 x i8], align 1

; Function Attrs: noreturn nounwind
declare void @__assert_fail(ptr noundef, ptr noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @headers_complete_cb(ptr noundef readnone %0) local_unnamed_addr #1 {
  %2 = icmp eq ptr %0, @parser
  br i1 %2, label %4, label %3

3:                                                ; preds = %1
  tail call void @__assert_fail(ptr noundef nonnull @.str.153, ptr noundef nonnull @.str.151, i32 noundef 2200, ptr noundef nonnull @__PRETTY_FUNCTION__.headers_complete_cb) #3
  unreachable

4:                                                ; preds = %1
  %5 = load i32, ptr getelementptr inbounds (i8, ptr @parser, i64 20), align 4
  %6 = lshr i32 %5, 16
  %7 = and i32 %6, 255
  %8 = load i32, ptr @num_messages, align 4, !tbaa !5
  %9 = sext i32 %8 to i64
  %10 = getelementptr inbounds [5 x %struct.message], ptr @messages, i64 0, i64 %9, i32 3
  store i32 %7, ptr %10, align 4, !tbaa !9
  %11 = and i32 %5, 65535
  %12 = getelementptr inbounds [5 x %struct.message], ptr @messages, i64 0, i64 %9, i32 4
  store i32 %11, ptr %12, align 8, !tbaa !14
  %13 = getelementptr inbounds [5 x %struct.message], ptr @messages, i64 0, i64 %9, i32 23
  %14 = load <2 x i16>, ptr getelementptr inbounds (i8, ptr @parser, i64 16), align 8, !tbaa !15
  store <2 x i16> %14, ptr %13, align 8, !tbaa !15
  %15 = getelementptr inbounds [5 x %struct.message], ptr @messages, i64 0, i64 %9, i32 26
  store i32 1, ptr %15, align 8, !tbaa !16
  %16 = tail call i32 @http_should_keep_alive(ptr noundef nonnull @parser) #4
  %17 = load i32, ptr @num_messages, align 4, !tbaa !5
  %18 = sext i32 %17 to i64
  %19 = getelementptr inbounds [5 x %struct.message], ptr @messages, i64 0, i64 %18, i32 18
  store i32 %16, ptr %19, align 4, !tbaa !17
  ret i32 0
}

declare i32 @http_should_keep_alive(ptr noundef) local_unnamed_addr #2

attributes #0 = { noreturn nounwind "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 = { 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 #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 = { noreturn nounwind }
attributes #4 = { 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, !6, i64 20}
!10 = !{!"message", !11, i64 0, !11, i64 8, !6, i64 16, !6, i64 20, !6, i64 24, !7, i64 28, !7, i64 2076, !7, i64 4124, !7, i64 6172, !7, i64 8220, !7, i64 10268, !12, i64 12320, !11, i64 12328, !11, i64 12336, !13, i64 12344, !6, i64 12348, !6, i64 12352, !7, i64 12356, !6, i64 65604, !6, i64 65608, !6, i64 65612, !7, i64 65616, !11, i64 65680, !13, i64 65688, !13, i64 65690, !6, i64 65692, !6, i64 65696, !6, i64 65700, !6, i64 65704, !6, i64 65708, !6, i64 65712}
!11 = !{!"any pointer", !7, i64 0}
!12 = !{!"long", !7, i64 0}
!13 = !{!"short", !7, i64 0}
!14 = !{!10, !6, i64 24}
!15 = !{!13, !13, i64 0}
!16 = !{!10, !6, i64 65696}
!17 = !{!10, !6, i64 65604}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InstCombinePass,PostOrderFunctionAttrsPass,SLPVectorizerPass,SROAPass,SimplifyCFGPass,TailCallElimPass