xref: /llvm-project/clang/test/CodeGen/bpf-struct-argument.c (revision 481d67d310a7a4213da72f838d6bafaa52ed01d3) 
1 // REQUIRES: bpf-registered-target
2 // RUN: %clang_cc1 -triple bpf -O2 -emit-llvm -disable-llvm-passes %s -o - | FileCheck %s
3 
4 struct t1 {};
5 struct t2 {
6   int a;
7 };
8 struct t3 {
9   int a;
10   long b;
11 };
12 struct t4 {
13   long a;
14   long b;
15   long c;
16 };
17 
foo1(struct t1 arg1,struct t2 arg2)18 int foo1(struct t1 arg1, struct t2 arg2) {
19 // CHECK: define dso_local i32 @foo1(i32 %arg2.coerce)
20   return arg2.a;
21 }
22 
foo2(struct t3 arg1,struct t4 arg2)23 int foo2(struct t3 arg1, struct t4 arg2) {
24 // CHECK: define dso_local i32 @foo2([2 x i64] %arg1.coerce, ptr noundef byval(%struct.t4) align 8 %arg2)
25   return arg1.a + arg2.a;
26 }
27 
foo3(void)28 int foo3(void) {
29   struct t1 tmp1 = {};
30   struct t2 tmp2 = {};
31   struct t3 tmp3 = {};
32   struct t4 tmp4 = {};
33   return foo1(tmp1, tmp2) + foo2(tmp3, tmp4);
34 // CHECK: call i32 @foo1(i32 %{{[a-zA-Z0-9]+}})
35 // CHECK: call i32 @foo2([2 x i64] %{{[a-zA-Z0-9]+}}, ptr noundef byval(%struct.t4) align 8 %tmp4)
36 }
37