; LLVM IR from Amoiensis/Optimization-Algorithm :: [Unconstrained_Optimization]无约束优化/[Gradient_Method]梯度法 (main)

; 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"

@__const.main._mat_X = external hidden unnamed_addr constant [1 x [3 x double]], align 16
@.str.25 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.26 = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local ptr @Matrix_gen(i32 noundef, i32 noundef, ptr noundef) #0

; 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

; Function Attrs: nounwind uwtable
declare dso_local ptr @M_add_sub(double noundef, ptr noundef, double noundef, ptr noundef) #0

declare i32 @printf(ptr noundef, ...) #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @M_print(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @M_free(ptr noundef) #0

; Function Attrs: nounwind uwtable
declare dso_local double @M_norm(ptr noundef, i32 noundef) #0

; Function Attrs: nounwind uwtable
define dso_local i32 @main(i32 noundef %0, ptr noundef %1) #0 {
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca ptr, align 8
  %6 = alloca ptr, align 8
  %7 = alloca [1 x [3 x double]], align 16
  %8 = alloca double, align 8
  %9 = alloca double, align 8
  %10 = alloca double, align 8
  %11 = alloca i32, align 4
  %12 = alloca i32, align 4
  %13 = alloca ptr, align 8
  %14 = alloca double, align 8
  %15 = alloca ptr, align 8
  %16 = alloca ptr, align 8
  store i32 0, ptr %3, align 4
  store i32 %0, ptr %4, align 4, !tbaa !5
  store ptr %1, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #4
  store ptr @Function, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 24, ptr %7) #4
  call void @llvm.memcpy.p0.p0.i64(ptr align 16 %7, ptr align 16 @__const.main._mat_X, i64 24, i1 false)
  call void @llvm.lifetime.start.p0(i64 8, ptr %8) #4
  store double 1.000000e-02, ptr %8, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %9) #4
  store double 1.000000e-02, ptr %9, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %10) #4
  store double 1.000000e-02, ptr %10, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 4, ptr %11) #4
  store i32 1, ptr %11, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %12) #4
  store i32 3, ptr %12, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 8, ptr %13) #4
  %17 = load i32, ptr %11, align 4, !tbaa !5
  %18 = load i32, ptr %12, align 4, !tbaa !5
  %19 = getelementptr inbounds [1 x [3 x double]], ptr %7, i64 0, i64 0
  %20 = call ptr @Matrix_gen(i32 noundef %17, i32 noundef %18, ptr noundef %19)
  store ptr %20, ptr %13, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %14) #4
  %21 = load double, ptr %8, align 8, !tbaa !11
  %22 = fmul double 1.000000e+01, %21
  store double %22, ptr %14, align 8, !tbaa !11
  call void @llvm.lifetime.start.p0(i64 8, ptr %15) #4
  store ptr null, ptr %15, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %16) #4
  store ptr null, ptr %16, align 8, !tbaa !9
  br label %23

23:                                               ; preds = %27, %2
  %24 = load double, ptr %14, align 8, !tbaa !11
  %25 = load double, ptr %8, align 8, !tbaa !11
  %26 = fcmp ogt double %24, %25
  br i1 %26, label %27, label %42

27:                                               ; preds = %23
  %28 = load ptr, ptr %13, align 8, !tbaa !9
  %29 = load double, ptr %9, align 8, !tbaa !11
  %30 = call ptr @Func_derivative(ptr noundef %28, double noundef %29)
  store ptr %30, ptr %15, align 8, !tbaa !9
  %31 = load ptr, ptr %13, align 8, !tbaa !9
  store ptr %31, ptr %16, align 8, !tbaa !9
  %32 = load ptr, ptr %16, align 8, !tbaa !9
  %33 = load double, ptr %10, align 8, !tbaa !11
  %34 = load ptr, ptr %15, align 8, !tbaa !9
  %35 = call ptr @M_add_sub(double noundef 1.000000e+00, ptr noundef %32, double noundef %33, ptr noundef %34)
  store ptr %35, ptr %13, align 8, !tbaa !9
  %36 = load ptr, ptr %16, align 8, !tbaa !9
  %37 = call i32 @M_free(ptr noundef %36)
  %38 = load ptr, ptr %15, align 8, !tbaa !9
  %39 = call i32 @M_free(ptr noundef %38)
  %40 = load ptr, ptr %15, align 8, !tbaa !9
  %41 = call double @M_norm(ptr noundef %40, i32 noundef 2)
  store double %41, ptr %14, align 8, !tbaa !11
  br label %23, !llvm.loop !13

42:                                               ; preds = %23
  %43 = call i32 (ptr, ...) @printf(ptr noundef @.str.25)
  %44 = load ptr, ptr %13, align 8, !tbaa !9
  %45 = call i32 @M_print(ptr noundef %44)
  %46 = load ptr, ptr %6, align 8, !tbaa !9
  %47 = load ptr, ptr %13, align 8, !tbaa !9
  %48 = call double %46(ptr noundef %47)
  %49 = call i32 (ptr, ...) @printf(ptr noundef @.str.26, double noundef %48)
  call void @llvm.lifetime.end.p0(i64 8, ptr %16) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %15) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %14) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %13) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %12) #4
  call void @llvm.lifetime.end.p0(i64 4, ptr %11) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %10) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %9) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %8) #4
  call void @llvm.lifetime.end.p0(i64 24, ptr %7) #4
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #4
  ret i32 0
}

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

; Function Attrs: nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: nounwind uwtable
declare dso_local ptr @Func_derivative(ptr noundef, double noundef) #0

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 = { "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 = { nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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, !10, i64 0}
!10 = !{!"any pointer", !7, i64 0}
!11 = !{!12, !12, i64 0}
!12 = !{!"double", !7, i64 0}
!13 = distinct !{!13, !14}
!14 = !{!"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"

@__const.main._mat_X = external hidden unnamed_addr constant [1 x [3 x double]], align 16
@.str.25 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.26 = external hidden unnamed_addr constant [12 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local ptr @Matrix_gen(i32 noundef, i32 noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite)
declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1

; Function Attrs: nounwind uwtable
declare dso_local ptr @M_add_sub(double noundef, ptr noundef, double noundef, ptr noundef) local_unnamed_addr #0

; Function Attrs: nofree nounwind
declare noundef i32 @printf(ptr nocapture noundef readonly, ...) local_unnamed_addr #2

; Function Attrs: nounwind uwtable
declare dso_local i32 @M_print(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local i32 @M_free(ptr noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local double @M_norm(ptr noundef, i32 noundef) local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main(i32 noundef %0, ptr nocapture noundef readnone %1) local_unnamed_addr #0 {
  %3 = alloca [1 x [3 x double]], align 16
  call void @llvm.lifetime.start.p0(i64 24, ptr nonnull %3) #4
  call void @llvm.memcpy.p0.p0.i64(ptr noundef nonnull align 16 dereferenceable(24) %3, ptr noundef nonnull align 16 dereferenceable(24) @__const.main._mat_X, i64 24, i1 false)
  %4 = call ptr @Matrix_gen(i32 noundef 1, i32 noundef 3, ptr noundef nonnull %3)
  br label %5

5:                                                ; preds = %2, %5
  %.01617 = phi ptr [ %4, %2 ], [ %7, %5 ]
  %6 = call ptr @Func_derivative(ptr noundef %.01617, double noundef 1.000000e-02)
  %7 = call ptr @M_add_sub(double noundef 1.000000e+00, ptr noundef %.01617, double noundef 1.000000e-02, ptr noundef %6)
  %8 = call i32 @M_free(ptr noundef %.01617)
  %9 = call i32 @M_free(ptr noundef %6)
  %10 = call double @M_norm(ptr noundef %6, i32 noundef 2)
  %11 = fcmp ogt double %10, 1.000000e-02
  br i1 %11, label %5, label %12, !llvm.loop !5

12:                                               ; preds = %5
  %13 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.25)
  %14 = call i32 @M_print(ptr noundef %7)
  %15 = call double @Function(ptr noundef %7)
  %16 = call i32 (ptr, ...) @printf(ptr noundef nonnull dereferenceable(1) @.str.26, double noundef %15)
  call void @llvm.lifetime.end.p0(i64 24, ptr nonnull %3) #4
  ret i32 0
}

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

; Function Attrs: mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite)
declare void @llvm.memcpy.p0.p0.i64(ptr noalias nocapture writeonly, ptr noalias nocapture readonly, i64, i1 immarg) #3

; Function Attrs: nounwind uwtable
declare dso_local ptr @Func_derivative(ptr noundef, double noundef) local_unnamed_addr #0

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 = { mustprogress nocallback nofree nosync nounwind willreturn memory(argmem: readwrite) }
attributes #2 = { nofree 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 #3 = { mustprogress nocallback nofree nounwind willreturn memory(argmem: readwrite) }
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 = distinct !{!5, !6}
!6 = !{!"llvm.loop.mustprogress"}


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