| ; RUN: llc -march=bpfel -o - %s | FileCheck %s |
| ; RUN: llc -march=bpfeb -o - %s | FileCheck %s |
| ; Source code: |
| ; struct ipv6_key_t { |
| ; unsigned pid; |
| ; unsigned __int128 saddr; |
| ; unsigned short lport; |
| ; }; |
| ; |
| ; extern void test1(ptr); |
| ; int test(int pid) { |
| ; struct ipv6_key_t ipv6_key = {.pid = pid}; |
| ; test1(&ipv6_key); |
| ; return 0; |
| ; } |
| ; Compilation flag: |
| ; clang -target bpf -O2 -S -emit-llvm t.c |
| |
| %struct.ipv6_key_t = type { i32, i128, i16 } |
| |
| ; Function Attrs: nounwind |
| define dso_local i32 @test(i32 %pid) local_unnamed_addr #0 { |
| entry: |
| %ipv6_key = alloca %struct.ipv6_key_t, align 16 |
| call void @llvm.lifetime.start.p0(i64 48, ptr nonnull %ipv6_key) #4 |
| call void @llvm.memset.p0.i64(ptr nonnull align 16 dereferenceable(48) %ipv6_key, i8 0, i64 48, i1 false) |
| store i32 %pid, ptr %ipv6_key, align 16, !tbaa !2 |
| call void @test1(ptr nonnull %ipv6_key) #4 |
| call void @llvm.lifetime.end.p0(i64 48, ptr nonnull %ipv6_key) #4 |
| ret i32 0 |
| } |
| |
| ; CHECK-LABEL: test |
| ; CHECK: *(u64 *)(r10 - 48) = r{{[0-9]+}} |
| ; CHECK: *(u32 *)(r10 - 48) = r{{[0-9]+}} |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.lifetime.start.p0(i64 immarg, ptr nocapture) #1 |
| |
| ; Function Attrs: argmemonly nounwind willreturn writeonly |
| declare void @llvm.memset.p0.i64(ptr nocapture writeonly, i8, i64, i1 immarg) #2 |
| |
| declare dso_local void @test1(ptr) local_unnamed_addr #3 |
| |
| ; Function Attrs: argmemonly nounwind willreturn |
| declare void @llvm.lifetime.end.p0(i64 immarg, ptr nocapture) #1 |
| |
| attributes #0 = { nounwind "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { argmemonly nounwind willreturn } |
| attributes #2 = { argmemonly nounwind willreturn writeonly } |
| attributes #3 = { "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #4 = { nounwind } |
| |
| !llvm.module.flags = !{!0} |
| !llvm.ident = !{!1} |
| |
| !0 = !{i32 1, !"wchar_size", i32 4} |
| !1 = !{!"clang version 11.0.0 (https://github.com/llvm/llvm-project.git 55fc7a47f8f18f84b44ff16f4e7a420c0a42ddf1)"} |
| !2 = !{!3, !4, i64 0} |
| !3 = !{!"ipv6_key_t", !4, i64 0, !7, i64 16, !8, i64 32} |
| !4 = !{!"int", !5, i64 0} |
| !5 = !{!"omnipotent char", !6, i64 0} |
| !6 = !{!"Simple C/C++ TBAA"} |
| !7 = !{!"__int128", !5, i64 0} |
| !8 = !{!"short", !5, i64 0} |