glsl: Don't mark assignment temporaries as read-only

The various l-value errors this was designed to catch are now caught
by other means.  Marking the temporaries as read-only now just
prevents sensible error messages from being generated.  It's

0:0(0): error: function parameter 'out p' references the read-only variable '_post_incdec_tmp'

versus

0:13(5): error: function parameter 'out p' references a post-decrement operation

Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Paul Berry <[email protected]>

1 files changed, 0 insertions, 5 deletions

diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index cb2ef429f70..1aebca40fac 100644
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -775,11 +775,6 @@ get_lvalue_copy(exec_list *instructions, ir_rvalue *lvalue)
    instructions->push_tail(new(ctx) ir_assignment(new(ctx) 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 new(ctx) ir_dereference_variable(var);
 }