Mesa (main): pan/mdg: Only print 2 sources for ALU

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Module: Mesa
Branch: main
Commit: 0ee24c46e0aad500a4ef90cc03cfd319e11cb342
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=0ee24c46e0aad500a4ef90cc03cfd319e11cb342

Author: Alyssa Rosenzweig <alyssa at collabora.com>
Date:   Tue May 31 08:41:03 2022 -0400

pan/mdg: Only print 2 sources for ALU

..and assert the other sources are null. The one place this might fail in the
future is for real FMA, but we don't support that for GL.

Signed-off-by: Alyssa Rosenzweig <alyssa at collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/16798>

---

 src/panfrost/midgard/midgard_print.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/panfrost/midgard/midgard_print.c b/src/panfrost/midgard/midgard_print.c
index 2a43516dd3c..cac792ae8ac 100644
--- a/src/panfrost/midgard/midgard_print.c
+++ b/src/panfrost/midgard/midgard_print.c
@@ -278,9 +278,15 @@ mir_print_instruction(midgard_instruction *ins)
         else
                 mir_print_src(ins, 1);
 
-        for (unsigned c = 2; c <= 3; ++c) {
-                printf(", ");
-                mir_print_src(ins, c);
+        if (is_alu) {
+                /* ALU ops are all 2-src */
+                assert(ins->src[2] == ~0);
+                assert(ins->src[3] == ~0);
+        } else {
+                for (unsigned c = 2; c <= 3; ++c) {
+                        printf(", ");
+                        mir_print_src(ins, c);
+                }
         }
 
         if (ins->no_spill)