panfrost/midgard: Add mir_has_arg helper

Helps scan the MIR for uses of an index.

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

1 files changed, 12 insertions, 0 deletions

diff --git a/src/panfrost/midgard/compiler.h b/src/panfrost/midgard/compiler.h
index 294831c352e..3002a079dea 100644
--- a/src/panfrost/midgard/compiler.h
+++ b/src/panfrost/midgard/compiler.h
@@ -417,6 +417,18 @@ v_mov(unsigned src, midgard_vector_alu_src mod, unsigned dest)
         return ins;
 }
 
+static inline bool
+mir_has_arg(midgard_instruction *ins, unsigned arg)
+{
+        if (ins->ssa_args.src0 == arg)
+                return true;
+
+        if (ins->ssa_args.src1 == arg && !ins->ssa_args.inline_constant)
+                return true;
+
+        return false;
+}
+
 midgard_instruction
 v_load_store_scratch(unsigned srcdest, unsigned index, bool is_store);