X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fglsl%2Fcompiler.cpp;h=30a3f08c58a98b34cf10ffc8224540375978c69e;hb=6d11ee7d6137117f441951615cd4cde4d59bf968;hp=f5540139e3391cffd1afd1b9f2f8e709fa4b99d5;hpb=4c805f55d89919d6971d600102ab4d6d65d56dc3;p=libs%2Fgl.git diff --git a/source/glsl/compiler.cpp b/source/glsl/compiler.cpp index f5540139..30a3f08c 100644 --- a/source/glsl/compiler.cpp +++ b/source/glsl/compiler.cpp @@ -86,7 +86,7 @@ void Compiler::compile(Mode mode) throw invalid_shader_source(get_diagnostics()); unsigned n = 0; - for(list::iterator i=module->stages.begin(); (i!=module->stages.end() && n<10000); ++n) + for(list::iterator i=module->stages.begin(); i!=module->stages.end(); ++n) { OptimizeResult result = optimize(*i); if(result==REDO_PREVIOUS) @@ -241,15 +241,12 @@ void Compiler::generate(Stage &stage, Mode mode) // Initial resolving pass BlockHierarchyResolver().apply(stage); - TypeResolver().apply(stage); - FunctionResolver().apply(stage); - VariableResolver().apply(stage); + resolve(stage); /* All variables local to a stage have been resolved. Resolve non-local variables through interfaces. */ InterfaceGenerator().apply(stage); - TypeResolver().apply(stage); - VariableResolver().apply(stage); + resolve(stage); FunctionResolver().apply(stage); ConstantSpecializer().apply(stage, (mode==PROGRAM && specialized ? &spec_values : 0)); @@ -257,9 +254,21 @@ void Compiler::generate(Stage &stage, Mode mode) LegacyConverter().apply(stage, features); } +void Compiler::resolve(Stage &stage) +{ + TypeResolver().apply(stage); + // Use the bitwise or to always evaluate both operands + while(VariableResolver().apply(stage) | + ExpressionResolver().apply(stage)) ; + FunctionResolver().apply(stage); +} + bool Compiler::validate(Stage &stage) { + TypeValidator().apply(stage); DeclarationValidator().apply(stage); + ReferenceValidator().apply(stage); + ExpressionValidator().apply(stage); for(vector::const_iterator i=stage.diagnostics.begin(); i!=stage.diagnostics.end(); ++i) if(i->severity==Diagnostic::ERR) @@ -275,16 +284,13 @@ Compiler::OptimizeResult Compiler::optimize(Stage &stage) bool any_inlined = FunctionInliner().apply(stage); any_inlined |= ExpressionInliner().apply(stage); if(any_inlined) - { - TypeResolver().apply(stage); - VariableResolver().apply(stage); - FunctionResolver().apply(stage); - } + resolve(stage); /* Removing variables or functions may cause things from the previous stage to become unused. */ bool any_removed = UnusedVariableRemover().apply(stage); any_removed |= UnusedFunctionRemover().apply(stage); + any_removed |= UnusedTypeRemover().apply(stage); return any_removed ? REDO_PREVIOUS : any_inlined ? REDO_STAGE : NEXT_STAGE; }