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-rw-r--r--libguile/jit.c54
1 files changed, 54 insertions, 0 deletions
diff --git a/libguile/jit.c b/libguile/jit.c
index 136b8bcaf..f1c7a4941 100644
--- a/libguile/jit.c
+++ b/libguile/jit.c
@@ -2089,6 +2089,60 @@ compile_allocate_words_immediate (scm_jit_state *j, uint16_t dst, uint16_t nword
}
static void
+compile_allocate_pointerless_words (scm_jit_state *j, uint16_t dst, uint16_t nwords)
+{
+ jit_gpr_t t = T0;
+
+ emit_store_current_ip (j, t);
+ emit_call_2 (j, scm_vm_intrinsics.allocate_pointerless_words, thread_operand (),
+ sp_sz_operand (j, nwords));
+ emit_retval (j, t);
+ record_gpr_clobber (j, t);
+ emit_reload_sp (j);
+ emit_sp_set_scm (j, dst, t);
+}
+
+static void
+compile_allocate_pointerless_words_immediate (scm_jit_state *j, uint16_t dst, uint16_t nwords)
+{
+ size_t bytes = nwords * sizeof(SCM);
+ size_t idx = scm_inline_gc_bytes_to_freelist_index (bytes);
+
+ if (SCM_UNLIKELY (idx >= SCM_INLINE_GC_FREELIST_COUNT))
+ {
+ jit_gpr_t t = T0;
+ emit_store_current_ip (j, t);
+ emit_call_1 (j, GC_malloc_atomic, jit_operand_imm (JIT_OPERAND_ABI_WORD, bytes));
+ emit_retval (j, t);
+ emit_reload_sp (j);
+ emit_sp_set_scm (j, dst, t);
+ }
+ else
+ {
+ jit_gpr_t res = T0;
+ ptrdiff_t offset = offsetof(struct scm_thread, pointerless_freelists);
+ offset += idx * sizeof(void*);
+ emit_ldxi (j, res, THREAD, offset);
+ jit_reloc_t fast = jit_bnei (j->jit, res, 0);
+ emit_store_current_ip (j, res);
+ emit_call_2 (j, scm_vm_intrinsics.allocate_pointerless_words_with_freelist,
+ thread_operand (),
+ jit_operand_imm (JIT_OPERAND_ABI_WORD, idx));
+ emit_retval (j, res);
+ emit_reload_sp (j);
+ jit_reloc_t done = jit_jmp (j->jit);
+
+ jit_patch_here (j->jit, fast);
+ jit_gpr_t new_freelist = T1;
+ emit_ldr (j, new_freelist, res);
+ jit_stxi (j->jit, offset, THREAD, new_freelist);
+
+ jit_patch_here (j->jit, done);
+ emit_sp_set_scm (j, dst, res);
+ }
+}
+
+static void
compile_scm_ref (scm_jit_state *j, uint8_t dst, uint8_t obj, uint8_t idx)
{
emit_sp_ref_scm (j, T0, obj);