pan/bi: Add bi_spill helper

Generates STORE to TLS. Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7206>
2020-10-14 19:26:58 -04:00
parent 171bf19917
commit 486a820bc6
1 changed files with 23 additions and 0 deletions
@@ -174,6 +174,29 @@ bi_install_registers(bi_context *ctx, struct lcra_state *l)
        }
 }

+static bi_instruction
+bi_spill(unsigned node, uint64_t offset, unsigned channels)
+{
+        bi_instruction store = {
+                .type = BI_STORE,
+                .segment = BI_SEGMENT_TLS,
+                .vector_channels = channels,
+                .src = {
+                        node,
+                        BIR_INDEX_CONSTANT,
+                        BIR_INDEX_CONSTANT | 32,
+                },
+                .src_types = {
+                        nir_type_uint32,
+                        nir_type_uint32,
+                        nir_type_uint32
+                },
+                .constant = { .u64 = offset },
+        };
+
+        return store;
+}
+
 /* If register allocation fails, find the best spill node */

 static signed