vc4: Print live variable start/ends during QIR dumping.

This only happens when live variables are set up, which is not in the
normal dump, but is set up when we've failed to register allocate.

diff --git a/src/gallium/drivers/vc4/vc4_qir.c b/src/gallium/drivers/vc4/vc4_qir.c
index 3f59fceede9350ef43e9d598fdff00cd2b1a96fb..4c81b567927e932e38efb33513cf0c952ecceb19 100644 (file)
--- a/src/gallium/drivers/vc4/vc4_qir.c
+++ b/src/gallium/drivers/vc4/vc4_qir.c
@@ -361,11 +361,56 @@ qir_dump_inst(struct vc4_compile *c, struct qinst *inst)
 void
 qir_dump(struct vc4_compile *c)
 {
+        int ip = 0;
+
         qir_for_each_block(block, c) {
                 fprintf(stderr, "BLOCK %d:\n", block->index);
                 qir_for_each_inst(inst, block) {
+                        if (c->temp_start) {
+                                bool first = true;
+
+                                for (int i = 0; i < c->num_temps; i++) {
+                                        if (c->temp_start[i] != ip)
+                                                continue;
+
+                                        if (first) {
+                                                first = false;
+                                        } else {
+                                                fprintf(stderr, ", ");
+                                        }
+                                        fprintf(stderr, "S%4d", i);
+                                }
+
+                                if (first)
+                                        fprintf(stderr, "      ");
+                                else
+                                        fprintf(stderr, " ");
+                        }
+
+                        if (c->temp_end) {
+                                bool first = true;
+
+                                for (int i = 0; i < c->num_temps; i++) {
+                                        if (c->temp_end[i] != ip)
+                                                continue;
+
+                                        if (first) {
+                                                first = false;
+                                        } else {
+                                                fprintf(stderr, ", ");
+                                        }
+                                        fprintf(stderr, "E%4d", i);
+                                }
+
+                                if (first)
+                                        fprintf(stderr, "      ");
+                                else
+                                        fprintf(stderr, " ");
+                        }
+
                         qir_dump_inst(c, inst);
                         fprintf(stderr, "\n");
+                        ip++;
                 }
         }
 }