From 49aa680ccdac46d1d2a7f9f250999b7ff7099548 Mon Sep 17 00:00:00 2001 From: Kimplul Date: Sat, 29 Jun 2024 14:20:07 +0300 Subject: start adding tests --- tests/link-register.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 tests/link-register.c (limited to 'tests/link-register.c') diff --git a/tests/link-register.c b/tests/link-register.c new file mode 100644 index 0000000..9e5413b --- /dev/null +++ b/tests/link-register.c @@ -0,0 +1,35 @@ +#include "test.h" + +static void +run_test(jit_state_t *j, uint8_t *arena_base, size_t arena_size) +{ + jit_begin(j, arena_base, arena_size); + size_t align = jit_enter_jit_abi(j, 0, 0, 0); + jit_load_args_1(j, jit_operand_gpr (JIT_OPERAND_ABI_POINTER, JIT_R0)); + + jit_reloc_t call_tramp = jit_jmp (j); + + void *tramp = jit_address (j); + jit_pop_link_register (j); + jit_movr (j, JIT_R0, JIT_LR); + jit_leave_jit_abi(j, 0, 0, align); + jit_retr (j, JIT_R0); + + jit_patch_here (j, call_tramp); + jit_jmpi_with_link (j, tramp); + + void *expected_link = jit_address_to_function_pointer (jit_address (j)); + + size_t size = 0; + void* ret = jit_end(j, &size); + + void* (*f)(void) = ret; + + ASSERT(f() == expected_link); +} + +int +main (int argc, char *argv[]) +{ + return main_helper(argc, argv, run_test); +} -- cgit v1.2.3