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glsl: Make is_lvalue() and variable_referenced() const.

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These functions don't modify the target instruction, so it makes sense
to make them const.  This allows these functions to be called from ir
validation code (which uses const to ensure that it doesn't
accidentally modify the IR being validated).

Reviewed-by: Chad Versace <chad@chad-versace.us>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Paul Berry 2011-08-02 15:22:25 -07:00
parent 67b5a3267d
commit a52b53b56e
2 changed files with 11 additions and 11 deletions
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4
src/glsl/ir.cpp
View file

@ -1096,7 +1096,7 @@ ir_dereference_record::ir_dereference_record(ir_variable *var,
}
bool
ir_dereference::is_lvalue()
ir_dereference::is_lvalue() const
{
ir_variable *var = this->variable_referenced();
@ -1310,7 +1310,7 @@ ir_swizzle::create(ir_rvalue *val, const char *str, unsigned vector_length)
#undef I
ir_variable *
ir_swizzle::variable_referenced()
ir_swizzle::variable_referenced() const
{
return this->val->variable_referenced();
}

18
src/glsl/ir.h
View file

@ -144,7 +144,7 @@ public:
ir_rvalue *as_rvalue_to_saturate();
virtual bool is_lvalue()
virtual bool is_lvalue() const
{
return false;
}
@ -152,7 +152,7 @@ public:
/**
* Get the variable that is ultimately referenced by an r-value
*/
virtual ir_variable *variable_referenced()
virtual ir_variable *variable_referenced() const
{
return NULL;
}
@ -1355,7 +1355,7 @@ public:
virtual ir_visitor_status accept(ir_hierarchical_visitor *);
bool is_lvalue()
bool is_lvalue() const
{
return val->is_lvalue() && !mask.has_duplicates;
}
@ -1363,7 +1363,7 @@ public:
/**
* Get the variable that is ultimately referenced by an r-value
*/
virtual ir_variable *variable_referenced();
virtual ir_variable *variable_referenced() const;
ir_rvalue *val;
ir_swizzle_mask mask;
@ -1387,12 +1387,12 @@ public:
return this;
}
bool is_lvalue();
bool is_lvalue() const;
/**
* Get the variable that is ultimately referenced by an r-value
*/
virtual ir_variable *variable_referenced() = 0;
virtual ir_variable *variable_referenced() const = 0;
};
@ -1413,7 +1413,7 @@ public:
/**
* Get the variable that is ultimately referenced by an r-value
*/
virtual ir_variable *variable_referenced()
virtual ir_variable *variable_referenced() const
{
return this->var;
}
@ -1462,7 +1462,7 @@ public:
/**
* Get the variable that is ultimately referenced by an r-value
*/
virtual ir_variable *variable_referenced()
virtual ir_variable *variable_referenced() const
{
return this->array->variable_referenced();
}
@ -1496,7 +1496,7 @@ public:
/**
* Get the variable that is ultimately referenced by an r-value
*/
virtual ir_variable *variable_referenced()
virtual ir_variable *variable_referenced() const
{
return this->record->variable_referenced();
}