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ppc: Add initial jit_va_ calls to ppc

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* lib/jit_ppc-cpu.c, lib/jit_ppc-fpu.c, lib/jit_ppc.c:
	Add base support to jit vararg functions to the PowerPC backend.
This commit is contained in:
pcpa 2015-05-05 20:55:05 -03:00
parent 2c8b5e530c
commit cc217f0608
4 changed files with 108 additions and 0 deletions
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25
lib/jit_ppc-fpu.c
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@ -399,6 +399,8 @@ static void _sti_d(jit_state_t*,jit_word_t,jit_int32_t);
static void _stxr_d(jit_state_t*,jit_int32_t,jit_int32_t,jit_int32_t);
# define stxi_d(i0,r0,r1) _stxi_d(_jit,i0,r0,r1)
static void _stxi_d(jit_state_t*,jit_word_t,jit_int32_t,jit_int32_t);
# define vaarg_d(r0, r1) _vaarg_d(_jit, r0, r1)
static void _vaarg_d(jit_state_t*, jit_int32_t, jit_int32_t);
#endif
#if CODE
@ -1179,4 +1181,27 @@ _stxi_d(jit_state_t *_jit, jit_word_t i0, jit_int32_t r0, jit_int32_t r1)
jit_unget_reg(reg);
}
}
static void
_vaarg_d(jit_state_t *_jit, jit_int32_t r0, jit_int32_t r1)
{
jit_int32_t inv, reg;
assert(_jitc->function->self.call & jit_call_varargs);
reg = jit_get_reg(jit_class_gpr);
if ((inv = reg == _R0)) reg = jit_get_reg(jit_class_gpr);
/* Load varargs stack pointer. */
ldxi(rn(reg), r1, offsetof(jit_va_list_t, stack));
/* Load argument. */
ldr_d(r0, rn(reg));
/* Update vararg stack pointer. */
addi(rn(reg), rn(reg), sizeof(jit_float64_t));
stxi(offsetof(jit_va_list_t, stack), r1, rn(reg));
jit_unget_reg(reg);
if (inv) jit_unget_reg(_R0);
}
#endif