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1; RUN: llc < %s -march=bpfel -mattr=+alu32 -verify-machineinstrs | FileCheck %s
2; RUN: llc < %s -march=bpfeb -mattr=+alu32 -verify-machineinstrs | FileCheck %s
3;
4; Source Code:
5;   struct t {
6;     unsigned char a;
7;     unsigned char b;
8;     unsigned char c;
9;   };
10;   extern void foo(void *);
11;   int test() {
12;     struct t v = {
13;       .b = 2,
14;     };
15;     foo(&v);
16;     return 0;
17;   }
18; Compilation flag:
19;  clang -target bpf -O2 -S -emit-llvm t.c
20
21%struct.t = type { i8, i8, i8 }
22
23@__const.test.v = private unnamed_addr constant %struct.t { i8 0, i8 2, i8 0 }, align 1
24
25; Function Attrs: nounwind
26define dso_local i32 @test() local_unnamed_addr {
27entry:
28  %v1 = alloca [3 x i8], align 1
29  %v1.sub = getelementptr inbounds [3 x i8], [3 x i8]* %v1, i64 0, i64 0
30  call void @llvm.lifetime.start.p0i8(i64 3, i8* nonnull %v1.sub)
31  call void @llvm.memcpy.p0i8.p0i8.i64(i8* nonnull align 1 dereferenceable(3) %v1.sub, i8* nonnull align 1 dereferenceable(3) getelementptr inbounds (%struct.t, %struct.t* @__const.test.v, i64 0, i32 0), i64 3, i1 false)
32  call void @foo(i8* nonnull %v1.sub)
33  call void @llvm.lifetime.end.p0i8(i64 3, i8* nonnull %v1.sub)
34  ret i32 0
35}
36; CHECK-NOT:    w{{[0-9]+}} = *(u16 *)
37; CHECK-NOT:    w{{[0-9]+}} = *(u8 *)
38; CHECK:        *(u16 *)(r10 - 4) = w{{[0-9]+}}
39; CHECK:        *(u8 *)(r10 - 2) = w{{[0-9]+}}
40
41; Function Attrs: argmemonly nounwind willreturn
42declare void @llvm.lifetime.start.p0i8(i64 immarg, i8* nocapture)
43
44; Function Attrs: argmemonly nounwind willreturn
45declare void @llvm.memcpy.p0i8.p0i8.i64(i8* noalias nocapture writeonly, i8* noalias nocapture readonly, i64, i1 immarg)
46
47declare dso_local void @foo(i8*) local_unnamed_addr
48
49; Function Attrs: argmemonly nounwind willreturn
50declare void @llvm.lifetime.end.p0i8(i64 immarg, i8* nocapture)
51