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-rw-r--r--vm_insnhelper.c6
-rw-r--r--yjit_codegen.c30
2 files changed, 36 insertions, 0 deletions
diff --git a/vm_insnhelper.c b/vm_insnhelper.c
index 298bb2edf8..d41bfeb66c 100644
--- a/vm_insnhelper.c
+++ b/vm_insnhelper.c
@@ -1365,6 +1365,12 @@ vm_setinstancevariable(const rb_iseq_t *iseq, VALUE obj, ID id, VALUE val, IVC i
vm_setivar(obj, id, val, iseq, ic, 0, 0);
}
+void
+rb_vm_setinstancevariable(const rb_iseq_t *iseq, VALUE obj, ID id, VALUE val, IVC ic)
+{
+ vm_setinstancevariable(iseq, obj, id, val, ic);
+}
+
static VALUE
vm_throw_continue(const rb_execution_context_t *ec, VALUE err)
{
diff --git a/yjit_codegen.c b/yjit_codegen.c
index e7910987c0..5e5b3b2f35 100644
--- a/yjit_codegen.c
+++ b/yjit_codegen.c
@@ -859,6 +859,7 @@ enum {
SEND_MAX_DEPTH = 5, // up to 5 different classes
};
+/*
// Codegen for setting an instance variable.
// Preconditions:
// - receiver is in REG0
@@ -969,6 +970,7 @@ gen_set_ivar(jitstate_t *jit, ctx_t *ctx, const int max_chain_depth, VALUE compt
GEN_COUNTER_INC(cb, setivar_name_not_mapped);
return YJIT_CANT_COMPILE;
}
+*/
// Codegen for getting an instance variable.
// Preconditions:
@@ -1118,9 +1120,36 @@ gen_getinstancevariable(jitstate_t *jit, ctx_t *ctx)
return gen_get_ivar(jit, ctx, GETIVAR_MAX_DEPTH, comptime_val, ivar_name, OPND_SELF, side_exit);
}
+void rb_vm_setinstancevariable(const rb_iseq_t *iseq, VALUE obj, ID id, VALUE val, IVC ic);
+
static codegen_status_t
gen_setinstancevariable(jitstate_t* jit, ctx_t* ctx)
{
+ ID id = (ID)jit_get_arg(jit, 0);
+ IVC ic = (IVC)jit_get_arg(jit, 1);
+
+ // Save the PC and SP because the callee may allocate
+ // Note that this modifies REG_SP, which is why we do it first
+ jit_save_pc(jit, REG0);
+ jit_save_sp(jit, ctx);
+
+ // Get the operands from the stack
+ x86opnd_t val_opnd = ctx_stack_pop(ctx, 1);
+
+ // Call rb_vm_setinstancevariable(iseq, obj, id, val, ic);
+ // Out of order because we're going to corrupt REG_SP and REG_CFP
+ yjit_save_regs(cb);
+ mov(cb, C_ARG_REGS[1], member_opnd(REG_CFP, rb_control_frame_t, self));
+ mov(cb, C_ARG_REGS[3], val_opnd);
+ mov(cb, C_ARG_REGS[2], imm_opnd(id));
+ mov(cb, C_ARG_REGS[4], const_ptr_opnd(ic));
+ jit_mov_gc_ptr(jit, cb, C_ARG_REGS[0], (VALUE)jit->iseq);
+ call_ptr(cb, REG0, (void *)rb_vm_setinstancevariable);
+ yjit_load_regs(cb);
+
+ return YJIT_KEEP_COMPILING;
+
+ /*
// Defer compilation so we can specialize on a runtime `self`
if (!jit_at_current_insn(jit)) {
defer_compilation(jit->block, jit->insn_idx, ctx);
@@ -1142,6 +1171,7 @@ gen_setinstancevariable(jitstate_t* jit, ctx_t* ctx)
jit_guard_known_klass(jit, ctx, comptime_val_klass, OPND_SELF, GETIVAR_MAX_DEPTH, side_exit);
return gen_set_ivar(jit, ctx, GETIVAR_MAX_DEPTH, comptime_val, ivar_name, OPND_SELF, side_exit);
+ */
}
static void