Mesa (master): r600: Assert that array index is not negative.

[Vinson Lee]

Module: Mesa
Branch: master
Commit: e16f0c14f353cc04ad6cbcf99e3b95ccb1d2c06b
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=e16f0c14f353cc04ad6cbcf99e3b95ccb1d2c06b

Author: Vinson Lee <vlee at vmware.com>
Date:   Wed Feb 24 00:24:51 2010 -0800

r600: Assert that array index is not negative.

---

 src/mesa/drivers/dri/r600/r700_assembler.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/r600/r700_assembler.c b/src/mesa/drivers/dri/r600/r700_assembler.c
index d0059fa..8344dd9 100644
--- a/src/mesa/drivers/dri/r600/r700_assembler.c
+++ b/src/mesa/drivers/dri/r600/r700_assembler.c
@@ -1250,6 +1250,7 @@ GLboolean assemble_src(r700_AssemblerBase *pAsm,
 
     if(pAsm->aArgSubst[1+src] >= 0) 
     {
+        assert(fld >= 0);
         setaddrmode_PVSSRC(&(pAsm->S[fld].src), ADDR_ABSOLUTE);
         pAsm->S[fld].src.rtype = SRC_REG_TEMPORARY;
         pAsm->S[fld].src.reg   = pAsm->aArgSubst[1+src];