Mesa (master): intel/tools: Disallow control subregisters > 3

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Module: Mesa
Branch: master
Commit: e573f21edd39c3e3ab8c10579851bc2bd100f0bb
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=e573f21edd39c3e3ab8c10579851bc2bd100f0bb

Author: Matt Turner <mattst88 at gmail.com>
Date:   Tue Jun 16 17:07:15 2020 -0700

intel/tools: Disallow control subregisters > 3

> 4 was probably a typo, since the documentation says that there are 4
subregisters (0-3).

Reviewed-by: Sagar Ghuge <sagar.ghuge at intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5514>

---

 src/intel/tools/i965_gram.y | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/intel/tools/i965_gram.y b/src/intel/tools/i965_gram.y
index e236113771c..2aaf1471c5f 100644
--- a/src/intel/tools/i965_gram.y
+++ b/src/intel/tools/i965_gram.y
@@ -1853,7 +1853,7 @@ statereg:
 controlreg:
 	CONTROLREG subregnum
 	{
-		if ($2 > 4)
+		if ($2 > 3)
 			error(&@2, "control sub register number %d"
 				   " out of range\n", $2);