Required by ARB_shading_language_420pack.
---
src/glsl/ast_to_hir.cpp | 31 ++++++++++++++++++++++---------
1 file changed, 22 insertions(+), 9 deletions(-)
diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index b206380..6e689b4 100644
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -3358,7 +3358,7 @@ ast_jump_statement::hir(exec_list *instructions,
assert(state->current_function);
if (opt_return_value) {
- ir_rvalue *const ret = opt_return_value->hir(instructions, state);
+ ir_rvalue *ret = opt_return_value->hir(instructions, state);
/* The value of the return type can be NULL if the shader says
* 'return foo();' and foo() is a function that returns void.
@@ -3370,16 +3370,29 @@ ast_jump_statement::hir(exec_list *instructions,
const glsl_type *const ret_type =
(ret == NULL) ? glsl_type::void_type : ret->type;
- /* Implicit conversions are not allowed for return values. */
- if (state->current_function->return_type != ret_type) {
+ /* Implicit conversions are not allowed for return values prior to
+ * ARB_shading_language_420pack.
+ */
+ if (state->current_function->return_type != ret_type) {
YYLTYPE loc = this->get_location();
- _mesa_glsl_error(& loc, state,
- "`return' with wrong type %s, in function `%s' "
- "returning %s",
- ret_type->name,
- state->current_function->function_name(),
- state->current_function->return_type->name);
+ if (state->ARB_shading_language_420pack_enable) {
+ if
(!apply_implicit_conversion(state->current_function->return_type,
+ ret, state)) {
+ _mesa_glsl_error(& loc, state,
+ "Could not implicitly convert return value "
+ "to %s, in function `%s'",
+ state->current_function->return_type->name,
+ state->current_function->function_name());
+ }
+ } else {
+ _mesa_glsl_error(& loc, state,
+ "`return' with wrong type %s, in function `%s'
"
+ "returning %s",
+ ret_type->name,
+ state->current_function->function_name(),
+ state->current_function->return_type->name);
+ }
}
inst = new(ctx) ir_return(ret);
--
1.8.1.5
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