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Implement setn bytecode (#15)

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Maxime Chevalier-Boisvert 2021-04-28 16:55:56 -04:00 • committed by Alan Wu
parent 36134f7d29
commit 62c1297e24
1 changed files with 23 additions and 3 deletions
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26
yjit_codegen.c
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@ -456,6 +456,13 @@ yjit_gen_block(block_t *block, rb_execution_context_t *ec)
}
}
static codegen_status_t
gen_nop(jitstate_t* jit, ctx_t* ctx)
{
// Do nothing
return YJIT_KEEP_COMPILING;
}
static codegen_status_t
gen_dup(jitstate_t* jit, ctx_t* ctx)
{
@ -471,10 +478,22 @@ gen_dup(jitstate_t* jit, ctx_t* ctx)
return YJIT_KEEP_COMPILING;
}
// set Nth stack entry to stack top
static codegen_status_t
gen_nop(jitstate_t* jit, ctx_t* ctx)
gen_setn(jitstate_t* jit, ctx_t* ctx)
{
// Do nothing
rb_num_t n = (rb_num_t)jit_get_arg(jit, 0);
// Get the top value and its type
val_type_t top_type = ctx_get_opnd_type(ctx, OPND_STACK(0));
x86opnd_t top_val = ctx_stack_pop(ctx, 0);
// Set the destination and its type
ctx_set_opnd_type(ctx, OPND_STACK(n), top_type);
x86opnd_t dst_opnd = ctx_stack_opnd(ctx, (int32_t)n);
mov(cb, REG0, top_val);
mov(cb, dst_opnd, REG0);
return YJIT_KEEP_COMPILING;
}
@ -2220,8 +2239,9 @@ yjit_init_codegen(void)
leave_exit_code = yjit_gen_leave_exit(cb);
// Map YARV opcodes to the corresponding codegen functions
yjit_reg_op(BIN(dup), gen_dup);
yjit_reg_op(BIN(nop), gen_nop);
yjit_reg_op(BIN(dup), gen_dup);
yjit_reg_op(BIN(setn), gen_setn);
yjit_reg_op(BIN(pop), gen_pop);
yjit_reg_op(BIN(putnil), gen_putnil);
yjit_reg_op(BIN(putobject), gen_putobject);