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removing a goto loop

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This commit is contained in:
Wolfgang Bumiller 2013-01-09 16:00:16 +01:00
parent 16e789419d
commit 9eefe90d78
1 changed files with 7 additions and 15 deletions
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22
ir.c
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@ -2740,7 +2740,6 @@ static bool gen_blocks_recursive(ir_function *func, ir_block *block)
size_t stidx;
size_t i;
tailcall:
block->generated = true;
block->code_start = vec_size(code_statements);
for (i = 0; i < vec_size(block->instr); ++i)
@ -2757,10 +2756,8 @@ tailcall:
/* for uncoditional jumps, if the target hasn't been generated
* yet, we generate them right here.
*/
if (!target->generated) {
block = target;
goto tailcall;
}
if (!target->generated)
return gen_blocks_recursive(func, target);
/* otherwise we generate a jump instruction */
stmt.opcode = INSTR_GOTO;
@ -2798,16 +2795,12 @@ tailcall:
code_push_statement(&stmt, instr->context.line);
}
if (!ontrue->generated) {
if (onfalse->generated) {
block = ontrue;
goto tailcall;
}
if (onfalse->generated)
return gen_blocks_recursive(func, ontrue);
}
if (!onfalse->generated) {
if (ontrue->generated) {
block = onfalse;
goto tailcall;
}
if (ontrue->generated)
return gen_blocks_recursive(func, onfalse);
}
/* neither ontrue nor onfalse exist */
stmt.opcode = INSTR_IFNOT;
@ -2861,8 +2854,7 @@ tailcall:
code_pop_statement();
}
/* if not, generate now */
block = onfalse;
goto tailcall;
return gen_blocks_recursive(func, onfalse);
}
if ( (instr->opcode >= INSTR_CALL0 && instr->opcode <= INSTR_CALL8)