From 57f6b41047e95374701ee276248f0f8615168450 Mon Sep 17 00:00:00 2001 From: Kimplul Date: Thu, 13 Mar 2025 19:20:56 +0200 Subject: improve register allocation + Still linear, but orders regs by some kind of priority + Use all registers available, not just callee-save --- include/ejit/ejit.h | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'include') diff --git a/include/ejit/ejit.h b/include/ejit/ejit.h index aa7cc45..b0d8651 100644 --- a/include/ejit/ejit.h +++ b/include/ejit/ejit.h @@ -791,4 +791,14 @@ struct ejit_reloc ejit_bmsr(struct ejit_func *s, struct ejit_gpr r0, void ejit_patch(struct ejit_func *s, struct ejit_reloc r, struct ejit_label l); +/* hints for register allocations. Each time a slot is used, its priority is + * incremented by the current priority. Generally, you would want to call + * ejit_inc_prio before entering a loop body and decrement it again when + * exiting. Slots are placed into physical registers in the order of highest + * priority first. */ +size_t ejit_get_prio(struct ejit_func *s); +void ejit_set_prio(struct ejit_func *s, size_t prio); +void ejit_inc_prio(struct ejit_func *s, size_t prio); +void ejit_dec_prio(struct ejit_func *s, size_t prio); + #endif /* EJIT_H */ -- cgit v1.2.3