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Introduce parser-time optimization that replaces a function's local variables with registers.

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JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
This commit is contained in:
Ruben Ayrapetyan
2015-08-21 14:19:04 +03:00
parent 91aecc3bd0
commit 5b9ce05491
11 changed files with 360 additions and 65 deletions
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jerry-core/vm/opcodes-helpers-variables.cpp
+5 -5
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@@ -62,7 +62,7 @@ bool
is_reg_variable (vm_frame_ctx_t *frame_ctx_p, /**< interpreter context */
idx_t var_idx) /**< variable identifier */
{
return (var_idx >= frame_ctx_p->min_reg_num && var_idx <= frame_ctx_p->max_reg_num);
return (var_idx >= frame_ctx_p->min_reg_idx && var_idx <= frame_ctx_p->max_reg_idx);
} /* is_reg_variable */
/**
@@ -82,7 +82,7 @@ get_variable_value (vm_frame_ctx_t *frame_ctx_p, /**< interpreter context */
if (is_reg_variable (frame_ctx_p, var_idx))
{
ecma_value_t reg_value = vm_stack_frame_get_reg_value (&frame_ctx_p->stack_frame,
var_idx - frame_ctx_p->min_reg_num);
var_idx - frame_ctx_p->min_reg_idx);
JERRY_ASSERT (!ecma_is_value_empty (reg_value));
@@ -136,7 +136,7 @@ set_variable_value (vm_frame_ctx_t *frame_ctx_p, /**< interpreter context */
ret_value = ecma_make_empty_completion_value ();
ecma_value_t reg_value = vm_stack_frame_get_reg_value (&frame_ctx_p->stack_frame,
var_idx - frame_ctx_p->min_reg_num);
var_idx - frame_ctx_p->min_reg_idx);
if (ecma_is_value_number (reg_value)
&& ecma_is_value_number (value))
@@ -151,8 +151,8 @@ set_variable_value (vm_frame_ctx_t *frame_ctx_p, /**< interpreter context */
}
vm_stack_frame_set_reg_value (&frame_ctx_p->stack_frame,
var_idx - frame_ctx_p->min_reg_num,
ecma_copy_value (value, false));
var_idx - frame_ctx_p->min_reg_idx,
ecma_copy_value (value, false));
}
}
else