1 ; RUN: llc < %s -march=bpfel -verify-machineinstrs | FileCheck %s
2 ; RUN: llc < %s -march=bpfeb -verify-machineinstrs | FileCheck %s
7 ; int test(void *ctx) {
9 ; unsigned long long c = 333333333333ULL;
10 ; asm volatile("r0 = *(u16 *)skb[%0]" : : "i"(2));
11 ; asm volatile("r0 = *(u16 *)skb[%0]" : : "r"(a));
12 ; asm volatile("%0 = %1" : "=r"(b) : "i"(4));
13 ; asm volatile("%0 = %1 ll" : "=r"(b) : "i"(c));
14 ; asm volatile("%0 = *(u16 *) %1" : "=r"(b) : "m"(a));
15 ; asm volatile("%0 = *(u32 *) %1" : "=r"(b) : "m"(g[1]));
20 @g = common global [2 x i32] zeroinitializer, align 4
22 ; Function Attrs: nounwind
23 define i32 @test(i8* nocapture readnone %ctx) local_unnamed_addr #0 {
25 %a = alloca i32, align 4
26 %0 = bitcast i32* %a to i8*
27 call void @llvm.lifetime.start.p0i8(i64 4, i8* nonnull %0) #2
28 store i32 4, i32* %a, align 4
29 tail call void asm sideeffect "r0 = *(u16 *)skb[$0]", "i"(i32 2) #2
30 ; CHECK: r0 = *(u16 *)skb[2]
31 tail call void asm sideeffect "r0 = *(u16 *)skb[$0]", "r"(i32 4) #2
32 ; CHECK: r0 = *(u16 *)skb[r1]
33 %1 = tail call i32 asm sideeffect "$0 = $1", "=r,i"(i32 4) #2
35 %2 = tail call i32 asm sideeffect "$0 = $1 ll", "=r,i"(i64 333333333333) #2
36 ; CHECK: r1 = 333333333333 ll
37 %3 = call i32 asm sideeffect "$0 = *(u16 *) $1", "=r,*m"(i32* nonnull %a) #2
38 ; CHECK: r1 = *(u16 *) (r10 - 4)
39 %4 = call i32 asm sideeffect "$0 = *(u32 *) $1", "=r,*m"(i32* getelementptr inbounds ([2 x i32], [2 x i32]* @g, i64 0, i64 1)) #2
41 ; CHECK: r0 = *(u32 *) (r1 + 4)
42 call void @llvm.lifetime.end.p0i8(i64 4, i8* nonnull %0) #2
46 ; Function Attrs: argmemonly nounwind
47 declare void @llvm.lifetime.start.p0i8(i64, i8* nocapture) #1
49 ; Function Attrs: argmemonly nounwind
50 declare void @llvm.lifetime.end.p0i8(i64, i8* nocapture) #1
52 attributes #0 = { nounwind }
53 attributes #1 = { argmemonly nounwind }
54 attributes #2 = { nounwind }