Mesa (master): i965: Assert that an OPCODE_IF was seen before an OPCODE_ELSE.

[Vinson Lee]

Module: Mesa
Branch: master
Commit: 4485dd8a3e8aff8d4fb73684d0d7a5a1179f60cc
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=4485dd8a3e8aff8d4fb73684d0d7a5a1179f60cc

Author: Vinson Lee <vlee at vmware.com>
Date:   Sat Apr 17 23:48:37 2010 -0700

i965: Assert that an OPCODE_IF was seen before an OPCODE_ELSE.

---

 src/mesa/drivers/dri/i965/brw_vs_emit.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_vs_emit.c b/src/mesa/drivers/dri/i965/brw_vs_emit.c
index 2272614..7adb795 100644
--- a/src/mesa/drivers/dri/i965/brw_vs_emit.c
+++ b/src/mesa/drivers/dri/i965/brw_vs_emit.c
@@ -1657,6 +1657,7 @@ void brw_vs_emit(struct brw_vs_compile *c )
 	 if_depth++;
 	 break;
       case OPCODE_ELSE:
+	 assert(if_depth > 0);
 	 if_inst[if_depth-1] = brw_ELSE(p, if_inst[if_depth-1]);
 	 break;
       case OPCODE_ENDIF: