1 files changed, 46 insertions, 0 deletions
diff --git a/test/CodeGen/BPF/ex1.ll b/test/CodeGen/BPF/ex1.ll
new file mode 100644
index 0000000..5fc1200
--- /dev/null
+++ b/test/CodeGen/BPF/ex1.ll
@@ -0,0 +1,46 @@
+; RUN: llc < %s -march=bpf | FileCheck %s
+
+%struct.bpf_context = type { i64, i64, i64, i64, i64, i64, i64 }
+%struct.sk_buff = type { i64, i64, i64, i64, i64, i64, i64 }
+%struct.net_device = type { i64, i64, i64, i64, i64, i64, i64 }
+
+@bpf_prog1.devname = private unnamed_addr constant [3 x i8] c"lo\00", align 1
+@bpf_prog1.fmt = private unnamed_addr constant [15 x i8] c"skb %x dev %x\0A\00", align 1
+
+; Function Attrs: nounwind uwtable
+define i32 @bpf_prog1(%struct.bpf_context* nocapture %ctx) #0 section "events/net/netif_receive_skb" {
+  %devname = alloca [3 x i8], align 1
+  %fmt = alloca [15 x i8], align 1
+  %1 = getelementptr inbounds [3 x i8]* %devname, i64 0, i64 0
+  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* getelementptr inbounds ([3 x i8]* @bpf_prog1.devname, i64 0, i64 0), i64 3, i32 1, i1 false)
+  %2 = getelementptr inbounds %struct.bpf_context* %ctx, i64 0, i32 0
+  %3 = load i64* %2, align 8
+  %4 = inttoptr i64 %3 to %struct.sk_buff*
+  %5 = getelementptr inbounds %struct.sk_buff* %4, i64 0, i32 2
+  %6 = bitcast i64* %5 to i8*
+  %7 = call i8* inttoptr (i64 4 to i8* (i8*)*)(i8* %6) #1
+  %8 = call i32 inttoptr (i64 9 to i32 (i8*, i8*, i32)*)(i8* %7, i8* %1, i32 2) #1
+  %9 = icmp eq i32 %8, 0
+  br i1 %9, label %10, label %13
+
+; <label>:10                                      ; preds = %0
+  %11 = getelementptr inbounds [15 x i8]* %fmt, i64 0, i64 0
+  call void @llvm.memcpy.p0i8.p0i8.i64(i8* %11, i8* getelementptr inbounds ([15 x i8]* @bpf_prog1.fmt, i64 0, i64 0), i64 15, i32 1, i1 false)
+  %12 = call i32 (i8*, i32, ...)* inttoptr (i64 11 to i32 (i8*, i32, ...)*)(i8* %11, i32 15, %struct.sk_buff* %4, i8* %7) #1
+; CHECK-LABEL: bpf_prog1:
+; CHECK: call 4
+; CHECK: call 9
+; CHECK: jnei r0, 0
+; CHECK: mov r1, 622884453
+; CHECK: ld_64 r1, 7214898703899978611
+; CHECK: call 11
+; CHECK: mov r0, 0
+; CHECK: ret
+  br label %13
+
+; <label>:13                                      ; preds = %10, %0
+  ret i32 0
+}
+
+; Function Attrs: nounwind
+declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) #1