; LLVM IR from xboot/libcg :: src (cg)

; 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.cg_gradient_t = type { i32, i32, %struct.cg_matrix_t, [6 x double], double, %struct.anon }
%struct.cg_matrix_t = type { double, double, double, double, double, double }
%struct.anon = type { ptr, i32, i32 }

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #0

; Function Attrs: nounwind uwtable
define dso_local void @cg_gradient_set_opacity(ptr noundef %0, double noundef %1) #1 {
  %3 = alloca ptr, align 8
  %4 = alloca double, align 8
  %5 = alloca double, align 8
  %6 = alloca double, align 8
  %7 = alloca double, align 8
  %8 = alloca double, align 8
  %9 = alloca double, align 8
  %10 = alloca double, align 8
  store ptr %0, ptr %3, align 8, !tbaa !5
  store double %1, ptr %4, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #2
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #2
  store double 0.000000e+00, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %7) #2
  %11 = load double, ptr %4, align 8, !tbaa !9
  store double %11, ptr %7, align 8, !tbaa !9
  %12 = icmp eq ptr %6, %7
  %13 = zext i1 %12 to i32
  %14 = load double, ptr %6, align 8, !tbaa !9
  %15 = load double, ptr %7, align 8, !tbaa !9
  %16 = fcmp ogt double %14, %15
  br i1 %16, label %17, label %19

17:                                               ; preds = %2
  %18 = load double, ptr %6, align 8, !tbaa !9
  br label %21

19:                                               ; preds = %2
  %20 = load double, ptr %7, align 8, !tbaa !9
  br label %21

21:                                               ; preds = %19, %17
  %22 = phi double [ %18, %17 ], [ %20, %19 ]
  store double %22, ptr %8, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %7) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #2
  %23 = load double, ptr %8, align 8, !tbaa !9
  store double %23, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #2
  store double 1.000000e+00, ptr %9, align 8, !tbaa !9
  %24 = icmp eq ptr %5, %9
  %25 = zext i1 %24 to i32
  %26 = load double, ptr %5, align 8, !tbaa !9
  %27 = load double, ptr %9, align 8, !tbaa !9
  %28 = fcmp olt double %26, %27
  br i1 %28, label %29, label %31

29:                                               ; preds = %21
  %30 = load double, ptr %5, align 8, !tbaa !9
  br label %33

31:                                               ; preds = %21
  %32 = load double, ptr %9, align 8, !tbaa !9
  br label %33

33:                                               ; preds = %31, %29
  %34 = phi double [ %30, %29 ], [ %32, %31 ]
  store double %34, ptr %10, align 8, !tbaa !9
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #2
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #2
  %35 = load double, ptr %10, align 8, !tbaa !9
  %36 = load ptr, ptr %3, align 8, !tbaa !5
  %37 = getelementptr inbounds %struct.cg_gradient_t, ptr %36, i32 0, i32 4
  store double %35, ptr %37, align 8, !tbaa !11
  ret void
}

attributes #0 = { nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
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 = { 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 = !{!"double", !7, i64 0}
!11 = !{!12, !10, i64 104}
!12 = !{!"cg_gradient_t", !13, i64 0, !13, i64 4, !14, i64 8, !7, i64 56, !10, i64 104, !15, i64 112}
!13 = !{!"int", !7, i64 0}
!14 = !{!"cg_matrix_t", !10, i64 0, !10, i64 8, !10, i64 16, !10, i64 24, !10, i64 32, !10, i64 40}
!15 = !{!"", !6, i64 0, !13, i64 8, !13, i64 12}


; 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: mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) uwtable
define dso_local void @cg_gradient_set_opacity(ptr nocapture noundef writeonly %0, double noundef %1) local_unnamed_addr #0 {
  %3 = fcmp olt double %1, 0.000000e+00
  %4 = select i1 %3, double 0.000000e+00, double %1
  %5 = fcmp olt double %4, 1.000000e+00
  %6 = select i1 %5, double %4, double 1.000000e+00
  %7 = getelementptr inbounds i8, ptr %0, i64 104
  store double %6, ptr %7, align 8, !tbaa !5
  ret void
}

attributes #0 = { mustprogress nofree norecurse nosync nounwind willreturn memory(argmem: write) 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 104}
!6 = !{!"cg_gradient_t", !7, i64 0, !7, i64 4, !10, i64 8, !8, i64 56, !11, i64 104, !12, i64 112}
!7 = !{!"int", !8, i64 0}
!8 = !{!"omnipotent char", !9, i64 0}
!9 = !{!"Simple C/C++ TBAA"}
!10 = !{!"cg_matrix_t", !11, i64 0, !11, i64 8, !11, i64 16, !11, i64 24, !11, i64 32, !11, i64 40}
!11 = !{!"double", !8, i64 0}
!12 = !{!"", !13, i64 0, !7, i64 8, !7, i64 12}
!13 = !{!"any pointer", !8, i64 0}


; Effective O3 passes: EarlyCSEPass,GlobalOptPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,PromotePass,SROAPass,SimplifyCFGPass