Mesa (master): i965: Add a sanity check for register allocation sizes.

[Eric Anholt]

Module: Mesa
Branch: master
Commit: afb64311e3484002e06aeac62187b68467610449
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=afb64311e3484002e06aeac62187b68467610449

Author: Eric Anholt <eric at anholt.net>
Date:   Fri Oct  1 16:35:55 2010 -0700

i965: Add a sanity check for register allocation sizes.

---

 src/mesa/drivers/dri/i965/brw_fs.cpp |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index b38df71..ba6c048 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2293,6 +2293,11 @@ fs_visitor::assign_regs()
 	    break;
       }
       if (i == class_count) {
+	 if (this->virtual_grf_sizes[r] >= base_reg_count) {
+	    fprintf(stderr, "Object too large to register allocate.\n");
+	    this->fail = true;
+	 }
+
 	 class_sizes[class_count++] = this->virtual_grf_sizes[r];
       }
    }