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Make it clear stdarg like abstraction is not supported.
* include/lightning.h, include/lightning/jit_private.h, lib/jit_arm.c, lib/jit_mips.c, lib/jit_ppc.c, lib/jit_x86.c, lib/lightning.c: Make jit_ellipsis implementation not backend specific. It is not intended to handle va_list like objects at runtime, as jit_arg* and jit_getarg* return constant values resolved at parse time, so, effectively it is not possible to create printf like jit functions, as there is no va_start, va_arg, va_end, etc, abstraction. This limitation should be kept for the sake of making new ports easier.
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8 changed files with 67 additions and 45 deletions
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@ -135,6 +135,7 @@ _jit_prolog(jit_state_t *_jit)
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_jit->function->self.size = stack_framesize;
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_jit->function->self.argi = _jit->function->self.argf =
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_jit->function->self.aoff = _jit->function->self.alen = 0;
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_jit->function->self.call = jit_call_default;
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_jit->function->regoff = calloc(_jit->reglen, sizeof(jit_int32_t));
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_jit->function->prolog = jit_new_node_no_link(jit_code_prolog);
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@ -150,12 +151,6 @@ _jit_prolog(jit_state_t *_jit)
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jit_regset_new(_jit->function->regset);
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}
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void
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_jit_ellipsis(jit_state_t *_jit)
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{
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_jit->function->call.kind = jit_call_varargs;
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}
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jit_int32_t
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_jit_allocai(jit_state_t *_jit, jit_int32_t length)
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{
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@ -612,6 +607,7 @@ _jit_finishr(jit_state_t *_jit, jit_int32_t r0)
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call->w.w = _jit->function->self.argf;
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_jit->function->call.argi = _jit->function->call.argf =
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_jit->function->call.size = 0;
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_jit->prepare = 0;
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}
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jit_node_t *
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@ -629,7 +625,7 @@ _jit_finishi(jit_state_t *_jit, jit_pointer_t i0)
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call->w.w = _jit->function->call.argf;
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_jit->function->call.argi = _jit->function->call.argf =
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_jit->function->call.size = 0;
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_jit->prepare = 0;
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return (node);
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}
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