1; RUN: llc < %s -mtriple=bpfel -verify-machineinstrs | FileCheck %s 2; RUN: llc < %s -mtriple=bpfeb -verify-machineinstrs | FileCheck %s 3 4; Source code: 5; int g[2]; 6; 7; int test(ptr ctx) { 8; int a = 4, b; 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])); 16; return b; 17; } 18; 19 20@g = common global [2 x i32] zeroinitializer, align 4 21 22; Function Attrs: nounwind 23define i32 @test(ptr nocapture readnone %ctx) local_unnamed_addr #0 { 24entry: 25 %a = alloca i32, align 4 26 call void @llvm.lifetime.start.p0(i64 4, ptr nonnull %a) #2 27 store i32 4, ptr %a, align 4 28 tail call void asm sideeffect "r0 = *(u16 *)skb[$0]", "i"(i32 2) #2 29; CHECK: r0 = *(u16 *)skb[2] 30 tail call void asm sideeffect "r0 = *(u16 *)skb[$0]", "r"(i32 4) #2 31; CHECK: r0 = *(u16 *)skb[r1] 32 %0 = tail call i32 asm sideeffect "$0 = $1", "=r,i"(i32 4) #2 33; CHECK: r1 = 4 34 %1 = tail call i32 asm sideeffect "$0 = $1 ll", "=r,i"(i64 333333333333) #2 35; CHECK: r1 = 333333333333 ll 36 %2 = call i32 asm sideeffect "$0 = *(u16 *) $1", "=r,*m"(ptr elementtype(i32) nonnull %a) #2 37; CHECK: r1 = *(u16 *)(r10 - 4) 38 %3 = call i32 asm sideeffect "$0 = *(u32 *) $1", "=r,*m"(ptr elementtype(i32) getelementptr inbounds ([2 x i32], ptr @g, i64 0, i64 1)) #2 39; CHECK: r1 = g ll 40; CHECK: r0 = *(u32 *)(r1 + 4) 41 call void @llvm.lifetime.end.p0(i64 4, ptr nonnull %a) #2 42 ret i32 %3 43} 44 45; Function Attrs: argmemonly nounwind 46declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #1 47 48; Function Attrs: argmemonly nounwind 49declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #1 50 51attributes #0 = { nounwind } 52attributes #1 = { argmemonly nounwind } 53attributes #2 = { nounwind } 54