i965/fs: demote_pull_constants() did not take into account double types

The constants could be double, and it was allocating size for float types
for the destination register of varying pull constant loads.

Then the fs_visitor::validate() will complain.

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index f2bad0d..e105f40 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -2231,9 +2231,16 @@ fs_visitor::lower_constant_loads()
          if (pull_index == -1)
            continue;
 
+         const unsigned index = stage_prog_data->binding_table.pull_constants_start;
+         fs_reg dst;
+
+         if (type_sz(inst->src[i].type) <= 4)
+            dst = vgrf(glsl_type::float_type);
+         else
+            dst = vgrf(glsl_type::double_type);
+
          assert(inst->src[i].stride == 0);
 
-         fs_reg dst = vgrf(glsl_type::float_type);
          const fs_builder ubld = ibld.exec_all().group(8, 0);
          struct brw_reg offset = brw_imm_ud((unsigned)(pull_index * 4) & ~15);
          ubld.emit(FS_OPCODE_UNIFORM_PULL_CONSTANT_LOAD,