Mesa (master): pan/midgard: Add OP_IS_DERIVATIVE helper

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Module: Mesa
Branch: master
Commit: 81e7782e30a17e206098f2ddb9d01fc974441dc8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=81e7782e30a17e206098f2ddb9d01fc974441dc8

Author: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>
Date:   Mon Jul 29 16:52:55 2019 -0700

pan/midgard: Add OP_IS_DERIVATIVE helper

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig at collabora.com>

---

 src/panfrost/midgard/helpers.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/panfrost/midgard/helpers.h b/src/panfrost/midgard/helpers.h
index 0cd2e71862c..9e8f964b00c 100644
--- a/src/panfrost/midgard/helpers.h
+++ b/src/panfrost/midgard/helpers.h
@@ -79,6 +79,11 @@
                 op == midgard_alu_op_fcsel \
         )
 
+#define OP_IS_DERIVATIVE(op) ( \
+                op == TEXTURE_OP_DFDX || \
+                op == TEXTURE_OP_DFDY \
+        )
+
 /* ALU control words are single bit fields with a lot of space */
 
 #define ALU_ENAB_VEC_MUL  (1 << 17)