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Fix double usage of the post-inc/dec's temporary pre-inc/dec copy.

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Fixes CorrectSwizzle3.frag.
This commit is contained in:
Eric Anholt 2010-06-23 14:57:47 -07:00 • committed by Ian Romanick
parent 2731a739d0
commit a9d58ad6c9
1 changed files with 4 additions and 5 deletions
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9
ast_to_hir.cpp
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@ -555,21 +555,20 @@ static ir_rvalue *
get_lvalue_copy(exec_list *instructions, ir_rvalue *lvalue)
{
ir_variable *var;
ir_rvalue *var_deref;
/* FINISHME: Give unique names to the temporaries. */
var = new ir_variable(lvalue->type, "_internal_tmp");
var = new ir_variable(lvalue->type, "_post_incdec_tmp");
var->mode = ir_var_auto;
var_deref = new ir_dereference_variable(var);
instructions->push_tail(new ir_assignment(var_deref, lvalue, NULL));
instructions->push_tail(new ir_assignment(new ir_dereference_variable(var),
lvalue, NULL));
/* Once we've created this temporary, mark it read only so it's no
* longer considered an lvalue.
*/
var->read_only = true;
return var_deref;
return new ir_dereference_variable(var);
}