Mesa (master): glsl: do const parameter optimization for array element actual parameters

[Brian Paul]

Module: Mesa
Branch: master
Commit: c86b0766681f986951e53ea852858eb8d6ce9e32
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c86b0766681f986951e53ea852858eb8d6ce9e32

Author: Brian Paul <brianp at vmware.com>
Date:   Thu Jul  9 07:58:50 2009 -0600

glsl: do const parameter optimization for array element actual parameters

When a function parameter is const-qualified we can avoid making a copy
of the actual parameter (we basically do a search/replace when inlining).
This is now done for array element params too, resulting in better code
(fewer MOV instructions).

We should allow some other types of function arguments here but let's be
conservative for the moment.

---

 src/mesa/shader/slang/slang_codegen.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/mesa/shader/slang/slang_codegen.c b/src/mesa/shader/slang/slang_codegen.c
index 24e9952..2b7e781 100644
--- a/src/mesa/shader/slang/slang_codegen.c
+++ b/src/mesa/shader/slang/slang_codegen.c
@@ -1417,8 +1417,9 @@ slang_inline_function_call(slang_assemble_ctx * A, slang_function *fun,
       }
       else if (p->type.qualifier == SLANG_QUAL_CONST) {
 	 /* a constant input param */
-	 if (args[i].type == SLANG_OPER_IDENTIFIER ||
-	     args[i].type == SLANG_OPER_LITERAL_FLOAT) {
+         if (args[i].type == SLANG_OPER_IDENTIFIER ||
+             args[i].type == SLANG_OPER_LITERAL_FLOAT ||
+             args[i].type == SLANG_OPER_SUBSCRIPT) {
 	    /* replace all occurances of this parameter variable with the
 	     * actual argument variable or a literal.
 	     */