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gerrit-public.fairphone.software / toolchain / llvm-project / 91be65be656072a68b51a8c4e7bb751ea475d896 / . / llvm / test / CodeGen / BPF / ex1.ll
blob: de9599b54d20d65f1d6f75e6f3d33966327fcdd7 [file] [log] [blame]
Alexei Starovoitov8cf9a4c2015-06-05 16:11:14 +0000[diff] [blame]1; RUN: llc < %s -march=bpfel | FileCheck %s
Alexei Starovoitove4c8c802015-01-24 17:51:26 +0000[diff] [blame]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
11define 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
David Blaikie79e6c742015-02-27 19:29:02 +0000[diff] [blame]14 %1 = getelementptr inbounds [3 x i8], [3 x i8]* %devname, i64 0, i64 0
Daniel Neilson1e687242018-01-19 17:13:12 +0000[diff] [blame]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, i1 false)
David Blaikie79e6c742015-02-27 19:29:02 +0000[diff] [blame]16 %2 = getelementptr inbounds %struct.bpf_context, %struct.bpf_context* %ctx, i64 0, i32 0
David Blaikiea79ac142015-02-27 21:17:42 +0000[diff] [blame]17 %3 = load i64, i64* %2, align 8
Alexei Starovoitove4c8c802015-01-24 17:51:26 +0000[diff] [blame]18 %4 = inttoptr i64 %3 to %struct.sk_buff*
David Blaikie79e6c742015-02-27 19:29:02 +0000[diff] [blame]19 %5 = getelementptr inbounds %struct.sk_buff, %struct.sk_buff* %4, i64 0, i32 2
Alexei Starovoitove4c8c802015-01-24 17:51:26 +0000[diff] [blame]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
David Blaikie79e6c742015-02-27 19:29:02 +0000[diff] [blame]27 %11 = getelementptr inbounds [15 x i8], [15 x i8]* %fmt, i64 0, i64 0
Daniel Neilson1e687242018-01-19 17:13:12 +0000[diff] [blame]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, i1 false)
David Blaikie23af6482015-04-16 23:24:18 +0000[diff] [blame]29 %12 = call i32 (i8*, i32, ...) inttoptr (i64 11 to i32 (i8*, i32, ...)*)(i8* %11, i32 15, %struct.sk_buff* %4, i8* %7) #1
Alexei Starovoitove4c8c802015-01-24 17:51:26 +0000[diff] [blame]30; CHECK-LABEL: bpf_prog1:
31; CHECK: call 4
32; CHECK: call 9
Alexei Starovoitov8f9f8212016-11-18 02:32:35 +0000[diff] [blame]33; CHECK: if r0 != 0
34; CHECK: r1 = 622884453
Yonghong Songbe9c0032017-09-11 23:43:35 +0000[diff] [blame]35; CHECK: r1 = 7214898703899978611 ll
Alexei Starovoitove4c8c802015-01-24 17:51:26 +0000[diff] [blame]36; CHECK: call 11
Alexei Starovoitov8f9f8212016-11-18 02:32:35 +0000[diff] [blame]37; CHECK: r0 = 0
38; CHECK: exit
Alexei Starovoitove4c8c802015-01-24 17:51:26 +0000[diff] [blame]39 br label %13
40
41; <label>:13 ; preds = %10, %0
42 ret i32 0
43}
44
45; Function Attrs: nounwind
Daniel Neilson1e687242018-01-19 17:13:12 +0000[diff] [blame]46declare void @llvm.memcpy.p0i8.p0i8.i64(i8* nocapture, i8* nocapture, i64, i1) #1