Mesa (master): i965/fs: Assert that var < num_vars.
Matt Turner
mattst88 at kemper.freedesktop.org
Tue Jan 21 22:26:43 UTC 2014
Module: Mesa
Branch: master
Commit: 78fa6172e11159a32fc5bb222965fd53eb39976e
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=78fa6172e11159a32fc5bb222965fd53eb39976e
Author: Matt Turner <mattst88 at gmail.com>
Date: Sat Dec 7 16:22:08 2013 -0800
i965/fs: Assert that var < num_vars.
Helped to track down a problem in a version of the next commit.
Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>
---
src/mesa/drivers/dri/i965/brw_fs_live_variables.cpp | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_fs_live_variables.cpp b/src/mesa/drivers/dri/i965/brw_fs_live_variables.cpp
index a29767d..a2d88aa 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_live_variables.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_live_variables.cpp
@@ -57,6 +57,7 @@ fs_live_variables::setup_one_read(bblock_t *block, fs_inst *inst,
int ip, fs_reg reg)
{
int var = var_from_vgrf[reg.reg] + reg.reg_offset;
+ assert(var < num_vars);
/* In most cases, a register can be written over safely by the
* same instruction that is its last use. For a single
@@ -106,6 +107,7 @@ fs_live_variables::setup_one_write(bblock_t *block, fs_inst *inst,
int ip, fs_reg reg)
{
int var = var_from_vgrf[reg.reg] + reg.reg_offset;
+ assert(var < num_vars);
start[var] = MIN2(start[var], ip);
end[var] = MAX2(end[var], ip);
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