; LLVM IR from bondhugula/pluto :: examples/matmul/matmul.blas (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"

@A = external dso_local global [2048 x [2048 x double]], align 16
@B = external dso_local global [2048 x [2048 x double]], align 16
@C = external dso_local global [2048 x [2048 x double]], align 16
@.str.3 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @init_matrices() #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 void @print_output() #0

; Function Attrs: nounwind uwtable
define dso_local i32 @main() #0 {
  %1 = alloca i32, align 4
  %2 = alloca i32, align 4
  %3 = alloca i32, align 4
  %4 = alloca i32, align 4
  %5 = alloca double, align 8
  %6 = alloca double, align 8
  %7 = alloca i32, align 4
  store i32 0, ptr %1, align 4
  call void @llvm.lifetime.start.p0(i64 4, ptr %2) #3
  store i32 2048, ptr %2, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %3) #3
  store i32 2048, ptr %3, align 4, !tbaa !5
  call void @llvm.lifetime.start.p0(i64 4, ptr %4) #3
  store i32 2048, ptr %4, align 4, !tbaa !5
  call void @init_matrices()
  call void @llvm.lifetime.start.p0(i64 8, ptr %5) #3
  store double 1.000000e+00, ptr %5, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 8, ptr %6) #3
  store double 1.000000e+00, ptr %6, align 8, !tbaa !9
  call void @llvm.lifetime.start.p0(i64 4, ptr %7) #3
  store i32 0, ptr %7, align 4, !tbaa !5
  br label %8

8:                                                ; preds = %16, %0
  %9 = load i32, ptr %7, align 4, !tbaa !5
  %10 = icmp slt i32 %9, 1
  br i1 %10, label %12, label %11

11:                                               ; preds = %8
  call void @llvm.lifetime.end.p0(i64 4, ptr %7) #3
  br label %19

12:                                               ; preds = %8
  %13 = load i32, ptr %2, align 4, !tbaa !5
  %14 = load i32, ptr %3, align 4, !tbaa !5
  %15 = load i32, ptr %4, align 4, !tbaa !5
  call void @cblas_dgemm(i32 noundef 101, i32 noundef 111, i32 noundef 111, i32 noundef 2048, i32 noundef 2048, i32 noundef 2048, double noundef 1.000000e+00, ptr noundef @A, i32 noundef %13, ptr noundef @B, i32 noundef %14, double noundef 1.000000e+00, ptr noundef @C, i32 noundef %15)
  br label %16

16:                                               ; preds = %12
  %17 = load i32, ptr %7, align 4, !tbaa !5
  %18 = add nsw i32 %17, 1
  store i32 %18, ptr %7, align 4, !tbaa !5
  br label %8, !llvm.loop !11

19:                                               ; preds = %11
  %20 = call noalias ptr @fopen(ptr noundef @.str.3, ptr noundef @.str.4)
  %21 = icmp ne ptr %20, null
  br i1 %21, label %22, label %23

22:                                               ; preds = %19
  call void @print_output()
  br label %23

23:                                               ; preds = %22, %19
  call void @llvm.lifetime.end.p0(i64 8, ptr %6) #3
  call void @llvm.lifetime.end.p0(i64 8, ptr %5) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %4) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %3) #3
  call void @llvm.lifetime.end.p0(i64 4, ptr %2) #3
  ret i32 0
}

declare void @cblas_dgemm(i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, double noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, double noundef, ptr noundef, i32 noundef) #2

declare noalias ptr @fopen(ptr noundef, ptr noundef) #2

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 = { 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 = !{!"double", !7, i64 0}
!11 = distinct !{!11, !12}
!12 = !{!"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"

@A = external dso_local global [2048 x [2048 x double]], align 16
@B = external dso_local global [2048 x [2048 x double]], align 16
@C = external dso_local global [2048 x [2048 x double]], align 16
@.str.3 = external hidden unnamed_addr constant [6 x i8], align 1
@.str.4 = external hidden unnamed_addr constant [2 x i8], align 1

; Function Attrs: nounwind uwtable
declare dso_local void @init_matrices() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
declare dso_local void @print_output() local_unnamed_addr #0

; Function Attrs: nounwind uwtable
define dso_local noundef i32 @main() local_unnamed_addr #0 {
.critedge:
  tail call void @init_matrices()
  tail call void @cblas_dgemm(i32 noundef 101, i32 noundef 111, i32 noundef 111, i32 noundef 2048, i32 noundef 2048, i32 noundef 2048, double noundef 1.000000e+00, ptr noundef nonnull @A, i32 noundef 2048, ptr noundef nonnull @B, i32 noundef 2048, double noundef 1.000000e+00, ptr noundef nonnull @C, i32 noundef 2048) #3
  %0 = tail call noalias ptr @fopen(ptr noundef nonnull @.str.3, ptr noundef nonnull @.str.4)
  %.not = icmp eq ptr %0, null
  br i1 %.not, label %2, label %1

1:                                                ; preds = %.critedge
  tail call void @print_output()
  br label %2

2:                                                ; preds = %1, %.critedge
  ret i32 0
}

declare void @cblas_dgemm(i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, i32 noundef, double noundef, ptr noundef, i32 noundef, ptr noundef, i32 noundef, double noundef, ptr noundef, i32 noundef) local_unnamed_addr #1

; Function Attrs: nofree nounwind
declare noalias noundef ptr @fopen(ptr nocapture noundef readonly, ptr nocapture noundef readonly) local_unnamed_addr #2

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 = { "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 = { 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 = { 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)"}


; Effective O3 passes: GlobalOptPass,IPSCCPPass,InferFunctionAttrsPass,InstCombinePass,PostOrderFunctionAttrsPass,SROAPass,SimplifyCFGPass,TailCallElimPass