nir/cursor: Add a constructor for the end of a block but before the jump

Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

diff --git a/src/glsl/nir/nir.h b/src/glsl/nir/nir.h
index 3c375f3..2bcd18a 100644 (file)
--- a/src/glsl/nir/nir.h
+++ b/src/glsl/nir/nir.h
@@ -1608,6 +1608,17 @@ nir_after_instr(nir_instr *instr)
 }
 
 static inline nir_cursor
+nir_after_block_before_jump(nir_block *block)
+{
+   nir_instr *last_instr = nir_block_last_instr(block);
+   if (last_instr && last_instr->type == nir_instr_type_jump) {
+      return nir_before_instr(last_instr);
+   } else {
+      return nir_after_block(block);
+   }
+}
+
+static inline nir_cursor
 nir_before_cf_node(nir_cf_node *node)
 {
    if (node->type == nir_cf_node_block)

diff --git a/src/glsl/nir/nir_from_ssa.c b/src/glsl/nir/nir_from_ssa.c
index 1fd8b24..94002f1 100644 (file)
--- a/src/glsl/nir/nir_from_ssa.c
+++ b/src/glsl/nir/nir_from_ssa.c
@@ -249,12 +249,7 @@ add_parallel_copy_to_end_of_block(nir_block *block, void *void_state)
       nir_parallel_copy_instr *pcopy =
          nir_parallel_copy_instr_create(state->dead_ctx);
 
-      nir_instr *last_instr = nir_block_last_instr(block);
-      if (last_instr && last_instr->type == nir_instr_type_jump) {
-         nir_instr_insert_before(last_instr, &pcopy->instr);
-      } else {
-         nir_instr_insert_after_block(block, &pcopy->instr);
-      }
+      nir_instr_insert(nir_after_block_before_jump(block), &pcopy->instr);
    }
 
    return true;