[Mesa-dev] [PATCH] i965/fs: Add code to print out global copy propagation sets.

[Kenneth Graunke]

This was invaluable when debugging the global copy propagation
algorithm.  We may as well commit it in case someone needs to print
out the sets in the future.

Signed-off-by: Kenneth Graunke <kenneth at whitecape.org>
---
 .../drivers/dri/i965/brw_fs_copy_propagation.cpp   | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
index 7464498..2780ab6 100644
--- a/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs_copy_propagation.cpp
@@ -83,6 +83,8 @@ public:
    void setup_initial_values();
    void run();
 
+   void dump_block_data() const;
+
    void *mem_ctx;
    cfg_t *cfg;
 
@@ -243,6 +245,34 @@ fs_copy_prop_dataflow::run()
    } while (progress);
 }
 
+void
+fs_copy_prop_dataflow::dump_block_data() const
+{
+   for (int b = 0; b < cfg->num_blocks; b++) {
+      bblock_t *block = cfg->blocks[b];
+      printf("Block %d [%d, %d] (parents ", block->block_num,
+             block->start_ip, block->end_ip);
+      foreach_list(block_node, &block->parents) {
+         bblock_t *parent = ((bblock_link *) block_node)->block;
+         printf("%d ", parent->block_num);
+      }
+      printf("):\n");
+      printf("       livein = 0x");
+      for (int i = 0; i < bitset_words; i++)
+         printf("%08x", bd[b].livein[i]);
+      printf(", liveout = 0x");
+      for (int i = 0; i < bitset_words; i++)
+         printf("%08x", bd[b].liveout[i]);
+      printf(",\n       copy   = 0x");
+      for (int i = 0; i < bitset_words; i++)
+         printf("%08x", bd[b].copy[i]);
+      printf(", kill    = 0x");
+      for (int i = 0; i < bitset_words; i++)
+         printf("%08x", bd[b].kill[i]);
+      printf("\n");
+   }
+}
+
 bool
 fs_visitor::try_copy_propagate(fs_inst *inst, int arg, acp_entry *entry)
 {
-- 
1.8.3.4