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Compute the constant value of a constant initializer.

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Fixes constFunc.frag.
This commit is contained in:
Eric Anholt
2010-03-31 15:53:26 -10:00
committed by Ian Romanick
parent ac3af37d27
commit 307c71bf24
1 changed files with 13 additions and 4 deletions
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17
ast_to_hir.cpp
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@@ -1434,13 +1434,22 @@ ast_declarator_list::hir(exec_list *instructions,
} }
ir_dereference *const lhs = new ir_dereference(var); ir_dereference *const lhs = new ir_dereference(var);
ir_rvalue *const rhs = decl->initializer->hir(instructions, state); ir_rvalue *rhs = decl->initializer->hir(instructions, state);
/* FINISHME: If the declaration is either 'const' or 'uniform', the /* Calculate the constant value if this is a const
* FINISHME: initializer (rhs) must be a constant expression. * declaration.
*/ */
if (this->type->qualifier.constant) {
rhs = rhs->constant_expression_value();
if (!rhs) {
_mesa_glsl_error(& initializer_loc, state,
"initializer of const variable `%s' must be a "
"constant expression",
decl->identifier);
}
}
if (!rhs->type->is_error()) { if (rhs && !rhs->type->is_error()) {
bool temp = var->read_only; bool temp = var->read_only;
if (this->type->qualifier.constant) if (this->type->qualifier.constant)
var->read_only = false; var->read_only = false;