xref: /llvm-project/llvm/test/CodeGen/BPF/remove_truncate_5.ll (revision c5037db4acd95790a0ca5061c8fa79c5c291607e)
1; RUN: llc < %s -mtriple=bpfel | FileCheck -check-prefixes=CHECK %s
2
3; Source code:
4; struct test_t {
5;       int a;
6;       char b;
7;       int c;
8;       char d;
9; };
10; void foo(ptr);
11; void test() {
12;       struct test_t t = {.a = 5};
13;       foo(&t);
14; }
15
16%struct.test_t = type { i32, i8, i32, i8 }
17
18@test.t = private unnamed_addr constant %struct.test_t { i32 5, i8 0, i32 0, i8 0 }, align 4
19
20; Function Attrs: nounwind
21define dso_local void @test() local_unnamed_addr #0 {
22; CHECK-LABEL: test:
23  %1 = alloca %struct.test_t, align 4
24  call void @llvm.lifetime.start.p0(i64 16, ptr nonnull %1) #3
25  call void @llvm.memcpy.p0.p0.i64(ptr nonnull align 4 %1, ptr align 4 @test.t, i64 16, i1 false)
26; CHECK: r1 = 0
27; CHECK: *(u64 *)(r10 - 8) = r1
28; CHECK: r1 = 5
29; CHECK: *(u64 *)(r10 - 16) = r1
30; CHECK: r1 = r10
31; CHECK: r1 += -16
32  call void @foo(ptr nonnull %1) #3
33; CHECK: call foo
34  call void @llvm.lifetime.end.p0(i64 16, ptr nonnull %1) #3
35  ret void
36}
37
38; Function Attrs: argmemonly nounwind
39declare void @llvm.lifetime.start.p0(i64, ptr nocapture) #1
40
41; Function Attrs: argmemonly nounwind
42declare void @llvm.memcpy.p0.p0.i64(ptr nocapture writeonly, ptr nocapture readonly, i64, i1) #1
43
44declare dso_local void @foo(ptr) local_unnamed_addr
45
46; Function Attrs: argmemonly nounwind
47declare void @llvm.lifetime.end.p0(i64, ptr nocapture) #1
48
49attributes #0 = { nounwind }
50attributes #1 = { argmemonly nounwind }
51attributes #3 = { nounwind }
52