diff options
Diffstat (limited to 'src/mesa/shader')
| -rw-r--r-- | src/mesa/shader/slang/slang_codegen.c | 62 |
1 files changed, 56 insertions, 6 deletions
diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c index 14fa38c3cd..af45dfb2e8 100644 --- a/src/mesa/shader/slang/slang_codegen.c +++ b/src/mesa/shader/slang/slang_codegen.c @@ -924,6 +924,30 @@ slang_substitute(slang_assemble_ctx *A, slang_operation *oper, } +/** + * Recursively traverse 'oper', replacing occurances of 'oldScope' with + * 'newScope' in the oper->locals->outer_scope filed. + * + * This is used after function inlining to update the scoping of + * the newly copied/inlined code so that vars are found in the new, + * inlined scope and not in the original function code. + */ +static void +slang_replace_scope(slang_operation *oper, + slang_variable_scope *oldScope, + slang_variable_scope *newScope) +{ + GLuint i; + if (oper->locals != newScope && + oper->locals->outer_scope == oldScope) { + oper->locals->outer_scope = newScope; + } + for (i = 0; i < oper->num_children; i++) { + slang_replace_scope(&oper->children[i], oldScope, newScope); + } +} + + /** * Produce inline code for a call to an assembly instruction. @@ -985,6 +1009,13 @@ slang_inline_asm_function(slang_assemble_ctx *A, _slang_free(substOld); _slang_free(substNew); +#if 0 + printf("+++++++++++++ inlined asm function %s +++++++++++++\n", + (char *) fun->header.a_name); + slang_print_tree(inlined, 3); + printf("+++++++++++++++++++++++++++++++++++++++++++++++++++\n"); +#endif + return inlined; } @@ -1012,6 +1043,7 @@ slang_inline_function_call(slang_assemble_ctx * A, slang_function *fun, slang_operation **substNew; GLuint substCount, numCopyIn, i; slang_function *prevFunction; + slang_variable_scope *newScope = NULL; /* save / push */ prevFunction = A->CurFunction; @@ -1029,7 +1061,7 @@ slang_inline_function_call(slang_assemble_ctx * A, slang_function *fun, _slang_alloc(totalArgs * sizeof(slang_operation *)); #if 0 - printf("Inline call to %s (total vars=%d nparams=%d)\n", + printf("\nInline call to %s (total vars=%d nparams=%d)\n", (char *) fun->header.a_name, fun->parameters->num_variables, numArgs); #endif @@ -1179,9 +1211,7 @@ slang_inline_function_call(slang_assemble_ctx * A, slang_function *fun, slang_operation *decl = slang_operation_insert(&inlined->num_children, &inlined->children, numCopyIn); - /* - printf("COPY_IN %s from expr\n", (char*)p->a_name); - */ + decl->type = SLANG_OPER_VARIABLE_DECL; assert(decl->locals); decl->locals->outer_scope = inlined->locals; @@ -1192,6 +1222,15 @@ slang_inline_function_call(slang_assemble_ctx * A, slang_function *fun, /* child[0] is the var's initializer */ slang_operation_copy(&decl->children[0], args + i); + /* add parameter 'p' to the local variable scope here */ + { + slang_variable *pCopy = slang_variable_scope_grow(inlined->locals); + pCopy->type = p->type; + pCopy->a_name = p->a_name; + pCopy->array_len = p->array_len; + } + + newScope = inlined->locals; numCopyIn++; } } @@ -1231,8 +1270,15 @@ slang_inline_function_call(slang_assemble_ctx * A, slang_function *fun, _slang_free(substOld); _slang_free(substNew); + /* Update scoping to use the new local vars instead of the + * original function's vars. This is especially important + * for nested inlining. + */ + if (newScope) + slang_replace_scope(inlined, fun->parameters, newScope); + #if 0 - printf("Done Inline call to %s (total vars=%d nparams=%d)\n", + printf("Done Inline call to %s (total vars=%d nparams=%d)\n\n", (char *) fun->header.a_name, fun->parameters->num_variables, numArgs); slang_print_tree(top, 0); @@ -2063,7 +2109,11 @@ _slang_gen_var_decl(slang_assemble_ctx *A, slang_variable *var) n = new_node0(IR_VAR_DECL); if (n) { _slang_attach_storage(n, var); - +#if 0 + printf("%s var %p %s store=%p\n", + __FUNCTION__, (void *) var, (char *) var->a_name, + (void *) n->Store); +#endif assert(var->aux); assert(n->Store == var->aux); assert(n->Store); |