agx: add parallel copy printing

useful for debugging.

Signed-off-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27616>

src/asahi/compiler/agx_compiler.h

@@ -874,6 +874,7 @@ agx_builder_insert(agx_cursor *cursor, agx_instr *I)
 
 /* Routines defined for AIR */
 
+void agx_print_index(agx_index index, bool is_float, FILE *fp);
 void agx_print_instr(const agx_instr *I, FILE *fp);
 void agx_print_block(const agx_block *block, FILE *fp);
 void agx_print_shader(const agx_context *ctx, FILE *fp);

src/asahi/compiler/agx_lower_parallel_copy.c

@@ -7,6 +7,27 @@
 #include "agx_builder.h"
 #include "agx_compiler.h"
 
+UNUSED static void
+print_copy(const struct agx_copy *cp)
+{
+   printf("%sr%u = ", cp->dest_mem ? "m" : "", cp->dest);
+   agx_print_index(cp->src, false, stdout);
+   printf("\n");
+}
+
+UNUSED static void
+print_copies(const struct agx_copy *copies, unsigned nr)
+{
+   printf("[\n");
+
+   for (unsigned i = 0; i < nr; ++i) {
+      printf("  ");
+      print_copy(&copies[i]);
+   }
+
+   printf("]\n");
+}
+
 /*
  * Emits code for
  *

src/asahi/compiler/agx_print.c

@@ -27,7 +27,7 @@ agx_print_sized(char prefix, unsigned value, enum agx_size size, FILE *fp)
    unreachable("Invalid size");
 }
 
-static void
+void
 agx_print_index(agx_index index, bool is_float, FILE *fp)
 {
    if (index.memory)