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Ignore generating a return instruction in accumulated functions, eventually we'll have a way to merge these into one function but for now the RETURN is a waste.

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This commit is contained in:
Dale Weiler 2013-10-17 04:45:24 -04:00
parent dd33f4e498
commit 97217b55d1
3 changed files with 9 additions and 0 deletions
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2
ast.c
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@ -1879,6 +1879,8 @@ bool ast_function_codegen(ast_function *self, ir_builder *ir)
for (i = 0; i < vec_size(ec->params); i++)
vec_push(call->params, (ast_expression*)ec->params[i]);
vec_push(vec_last(self->blocks)->exprs, (ast_expression*)call);
self->ir_func->flags |= IR_FLAG_ACCUMULATE;
}
for (i = 0; i < vec_size(self->blocks); ++i) {

6
ir.c
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@ -1583,7 +1583,13 @@ bool ir_block_create_return(ir_block *self, lex_ctx_t ctx, ir_value *v)
ir_instr *in;
if (!ir_check_unreachable(self))
return false;
self->final = true;
/* can eliminate the return instructions for accumulation */
if (self->owner->flags & IR_FLAG_ACCUMULATE)
return true;
self->is_return = true;
in = ir_instr_new(ctx, self, INSTR_RETURN);
if (!in)

1
ir.h
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@ -232,6 +232,7 @@ typedef struct ir_function_s
#define IR_FLAG_HAS_GOTO (1<<3)
#define IR_FLAG_INCLUDE_DEF (1<<4)
#define IR_FLAG_ERASEABLE (1<<5)
#define IR_FLAG_ACCUMULATE (1<<6)
#define IR_FLAG_MASK_NO_OVERLAP (IR_FLAG_HAS_ARRAYS | IR_FLAG_HAS_UNINITIALIZED)
#define IR_FLAG_MASK_NO_LOCAL_TEMPS (IR_FLAG_HAS_ARRAYS | IR_FLAG_HAS_UNINITIALIZED)