Mesa (mesa_7_5_branch): i965: asst clean-ups, etc in brw_vs_emit()

[Eric Anholt]

Module: Mesa
Branch: mesa_7_5_branch
Commit: a0b7850f1da6e367ed3380fbf0a59fa5af992546
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a0b7850f1da6e367ed3380fbf0a59fa5af992546

Author: Brian Paul <brianp at vmware.com>
Date:   Thu Jun 18 09:23:58 2009 -0600

i965: asst clean-ups, etc in brw_vs_emit()
(cherry picked from commit fd7d764514c540987549c3ea88a2d669b0f0ea58)

---

 src/mesa/drivers/dri/i965/brw_vs_emit.c |   21 ++++++++++-----------
 1 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c
index 4887cde..7c09222 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c
@@ -1195,15 +1195,14 @@ post_vs_emit( struct brw_vs_compile *c,
  */
 void brw_vs_emit(struct brw_vs_compile *c )
 {
-#define MAX_IFSN 32
+#define MAX_IF_DEPTH 32
    struct brw_compile *p = &c->func;
-   GLuint nr_insns = c->vp->program.Base.NumInstructions;
-   GLuint insn, if_insn = 0;
+   const GLuint nr_insns = c->vp->program.Base.NumInstructions;
+   GLuint insn, if_depth = 0;
    GLuint end_offset = 0;
    struct brw_instruction *end_inst, *last_inst;
-   struct brw_instruction *if_inst[MAX_IFSN];
-   struct brw_indirect stack_index = brw_indirect(0, 0);   
-
+   struct brw_instruction *if_inst[MAX_IF_DEPTH];
+   const struct brw_indirect stack_index = brw_indirect(0, 0);   
    GLuint index;
    GLuint file;
 
@@ -1394,15 +1393,15 @@ void brw_vs_emit(struct brw_vs_compile *c )
 	 emit_xpd(p, dst, args[0], args[1]);
 	 break;
       case OPCODE_IF:
-	 assert(if_insn < MAX_IFSN);
-         if_inst[if_insn++] = brw_IF(p, BRW_EXECUTE_8);
+	 assert(if_depth < MAX_IF_DEPTH);
+         if_inst[if_depth++] = brw_IF(p, BRW_EXECUTE_8);
 	 break;
       case OPCODE_ELSE:
-	 if_inst[if_insn-1] = brw_ELSE(p, if_inst[if_insn-1]);
+	 if_inst[if_depth-1] = brw_ELSE(p, if_inst[if_depth-1]);
 	 break;
       case OPCODE_ENDIF:
-         assert(if_insn > 0);
-	 brw_ENDIF(p, if_inst[--if_insn]);
+         assert(if_depth > 0);
+	 brw_ENDIF(p, if_inst[--if_depth]);
 	 break;			
       case OPCODE_BRA:
          brw_set_predicate_control(p, BRW_PREDICATE_NORMAL);