llvm-project/clang/test/CodeGen/bpf-attr-preserve-access-in...

24 lines
1002 B
C

// REQUIRES: bpf-registered-target
// RUN: %clang -target bpf -emit-llvm -S -g -Xclang -disable-llvm-passes %s -o - | FileCheck %s
#define __reloc__ __attribute__((preserve_access_index))
// test simple member access and initial struct with non-zero stride access
struct s1 {
int a;
union {
int b;
int c;
};
} __reloc__;
typedef struct s1 __s1;
int test(__s1 *arg) {
return arg->a + arg[1].b;
}
// CHECK: call i32* @llvm.preserve.struct.access.index.p0i32.p0s_struct.s1s(%struct.s1* elementtype(%struct.s1) %{{[0-9a-z]+}}, i32 0, i32 0)
// CHECK: call %struct.s1* @llvm.preserve.array.access.index.p0s_struct.s1s.p0s_struct.s1s(%struct.s1* elementtype(%struct.s1) %{{[0-9a-z]+}}, i32 0, i32 1)
// CHECK: call %union.anon* @llvm.preserve.struct.access.index.p0s_union.anons.p0s_struct.s1s(%struct.s1* elementtype(%struct.s1) %{{[0-9a-z]+}}, i32 1, i32 1)
// CHECK: call %union.anon* @llvm.preserve.union.access.index.p0s_union.anons.p0s_union.anons(%union.anon* %{{[0-9a-z]+}}, i32 0)