1 ; RUN: llc < %s -march=bpfel | FileCheck %s 2 3 %struct.bpf_context = type { i64, i64, i64, i64, i64, i64, i64 } 4 %struct.sk_buff = type { i64, i64, i64, i64, i64, i64, i64 } 5 %struct.net_device = type { i64, i64, i64, i64, i64, i64, i64 } 6 7 @bpf_prog1.devname = private unnamed_addr constant [3 x i8] c"lo\00", align 1 8 @bpf_prog1.fmt = private unnamed_addr constant [15 x i8] c"skb %x dev %x\0A\00", align 1 9 10 ; Function Attrs: nounwind uwtable 11 define i32 @bpf_prog1(%struct.bpf_context* nocapture %ctx) #0 section "events/net/netif_receive_skb" { 12 %devname = alloca [3 x i8], align 1 13 %fmt = alloca [15 x i8], align 1 14 %1 = getelementptr inbounds [3 x i8], [3 x i8]* %devname, i64 0, i64 0 15 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %1, i8* getelementptr inbounds ([3 x i8], [3 x i8]* @bpf_prog1.devname, i64 0, i64 0), i64 3, i32 1, i1 false) 16 %2 = getelementptr inbounds %struct.bpf_context, %struct.bpf_context* %ctx, i64 0, i32 0 17 %3 = load i64, i64* %2, align 8 18 %4 = inttoptr i64 %3 to %struct.sk_buff* 19 %5 = getelementptr inbounds %struct.sk_buff, %struct.sk_buff* %4, i64 0, i32 2 20 %6 = bitcast i64* %5 to i8* 21 %7 = call i8* inttoptr (i64 4 to i8* (i8*)*)(i8* %6) #1 22 %8 = call i32 inttoptr (i64 9 to i32 (i8*, i8*, i32)*)(i8* %7, i8* %1, i32 2) #1 23 %9 = icmp eq i32 %8, 0 24 br i1 %9, label %10, label %13 25 26 ; <label>:10 ; preds = %0 27 %11 = getelementptr inbounds [15 x i8], [15 x i8]* %fmt, i64 0, i64 0 28 call void @llvm.memcpy.p0i8.p0i8.i64(i8* %11, i8* getelementptr inbounds ([15 x i8], [15 x i8]* @bpf_prog1.fmt, i64 0, i64 0), i64 15, i32 1, i1 false) 29 %12 = call i32 (i8*, i32, ...) inttoptr (i64 11 to i32 (i8*, i32, ...)*)(i8* %11, i32 15, %struct.sk_buff* %4, i8* %7) #1 30 ; CHECK-LABEL: bpf_prog1: 31 ; CHECK: call 4 32 ; CHECK: call 9 33 ; CHECK: jnei r0, 0 34 ; CHECK: mov r1, 622884453 35 ; CHECK: ld_64 r1, 7214898703899978611 36 ; CHECK: call 11 37 ; CHECK: mov r0, 0 38 ; CHECK: ret 39 br label %13 40 41 ; <label>:13 ; preds = %10, %0 42 ret i32 0 43 } 44 45 ; Function Attrs: nounwind 46 declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i32, i1) #1 47
