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glsl: Mark 'in' variables at global scope as read-only

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Fixes Piglit tests:
spec/glsl-1.30/compiler/storage-qualifiers/static-write-centroid-in-01.frag
spec/glsl-1.30/compiler/storage-qualifiers/static-write-in-01.frag
spec/glsl-1.30/compiler/storage-qualifiers/static-write-in-02.frag

(cherry picked from commit 01a584d093)

Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Chad Versace 2011-01-20 14:12:16 -08:00 • committed by Ian Romanick
parent 3ddf406530
commit 13711c8a5a
1 changed files with 2 additions and 1 deletions
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3
src/glsl/ast_to_hir.cpp
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@ -1651,7 +1651,6 @@ apply_type_qualifier_to_variable(const struct ast_type_qualifier *qual,
}
}
/* FINISHME: Mark 'in' variables at global scope as read-only. */
if (qual->constant || qual->attribute || qual->uniform
|| (qual->varying && (state->target == fragment_shader)))
var->read_only = 1;
@ -1940,6 +1939,8 @@ ast_declarator_list::hir(exec_list *instructions,
mode, var->name, extra);
}
} else if (var->mode == ir_var_in) {
var->read_only = true;
if (state->target == vertex_shader) {
bool error_emitted = false;