On 04/26/2012 08:26 AM, Kenneth Graunke wrote:
On 04/25/2012 04:07 PM, Eric Anholt wrote:
The index is also used for GL_ARB_blend_func_extended. Cloning in
i965 was dropping a non-ARB_explicit_attrib_location index.
---
src/glsl/ir_clone.cpp | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/src/glsl/ir_clone.cpp b/src/glsl/ir_clone.cpp
index 5a7a71c..5046ac3 100644
--- a/src/glsl/ir_clone.cpp
+++ b/src/glsl/ir_clone.cpp
@@ -53,6 +53,7 @@ ir_variable::clone(void *mem_ctx, struct hash_table
*ht) const
var->invariant = this->invariant;
var->interpolation = this->interpolation;
var->location = this->location;
+ var->index = this->index;
var->warn_extension = this->warn_extension;
var->origin_upper_left = this->origin_upper_left;
var->pixel_center_integer = this->pixel_center_integer;
@@ -72,12 +73,6 @@ ir_variable::clone(void *mem_ctx, struct hash_table
*ht) const
sizeof(this->state_slots[0]) * var->num_state_slots);
}
- if (this->explicit_location)
- var->location = this->location;
-
- if (this->explicit_index)
- var->index = this->index;
-
if (this->constant_value)
var->constant_value = this->constant_value->clone(mem_ctx, ht);
I'm rather baffled as to why Ian added the explicit_location code you're
deleting in the first place. Cloning shouldn't do magic; it should just
clone.
I *believe* this was so that cloning a variable in a linked shader
wouldn't copy the location assigned by the linker. That said, I don't
recall why I thought that was necessary, and I'm struggling to come up
with a new reason.
Hopefully this won't break things. If it does, I think we should fix the
callers.
Reviewed-by: Kenneth Graunke <kenn...@whitecape.org>
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