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Introduce parser-time optimization that moves function's argument values to registers.

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For functions with the optimization applied:
 - vm puts arguments values immediately to registers without putting them to variables in lexical environment;
 - number of arguments is extracted from corresponding 'reg_var_decl' instruction's argument;
 - for functions that also don't have local variables, lexical environments are not created.

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
This commit is contained in:
Ruben Ayrapetyan
2015-10-26 16:23:06 +03:00
parent 46c65985e5
commit 1fe2817457
16 changed files with 604 additions and 194 deletions
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jerry-core/vm/vm-stack.h
+1 -1
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@@ -60,7 +60,7 @@ extern void vm_stack_finalize (void);
extern vm_stack_frame_t *
vm_stack_get_top_frame (void);
extern void
vm_stack_add_frame (vm_stack_frame_t *, ecma_value_t *, uint32_t, uint32_t);
vm_stack_add_frame (vm_stack_frame_t *, ecma_value_t *, uint32_t, uint32_t, uint32_t, ecma_collection_header_t *);
extern void vm_stack_free_frame (vm_stack_frame_t *);
extern ecma_value_t vm_stack_frame_get_reg_value (vm_stack_frame_t *, uint32_t);
extern void vm_stack_frame_set_reg_value (vm_stack_frame_t *, uint32_t, ecma_value_t);