From 8048226b7b1bbe8fd89f9c32fa4fadca4b8760c4 Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 5 Aug 2010 14:41:09 -0700 Subject: glsl2: Insert global declarations at the top of the instruction stream. Fixes use-before-decl in glslparsertest shaders. Fixes: CorrectFull.frag CorrectModule.frag --- src/glsl/ast_to_hir.cpp | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'src') diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp index 292c7be6217..f14341c8f72 100644 --- a/src/glsl/ast_to_hir.cpp +++ b/src/glsl/ast_to_hir.cpp @@ -1951,7 +1951,14 @@ ast_declarator_list::hir(exec_list *instructions, decl->identifier); } - instructions->push_tail(var); + /* Push the variable declaration to the top. It means that all + * the variable declarations will appear in a funny + * last-to-first order, but otherwise we run into trouble if a + * function is prototyped, a global var is decled, then the + * function is defined with usage of the global var. See + * glslparsertest's CorrectModule.frag. + */ + instructions->push_head(var); instructions->append_list(&initializer_instructions); /* Add the variable to the symbol table after processing the initializer. -- cgit v1.2.3