Mesa (master): intel/fs: Support 64-bit CLUSTER_BROADCAST on Gen11+

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Module: Mesa
Branch: master
Commit: c80db6611aaf9c59dd8ccd8597e52b789018eb20
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=c80db6611aaf9c59dd8ccd8597e52b789018eb20

Author: Jason Ekstrand <jason at jlekstrand.net>
Date:   Tue Oct 27 00:31:22 2020 -0500

intel/fs: Support 64-bit CLUSTER_BROADCAST on Gen11+

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7329>

---

 src/intel/compiler/brw_fs_generator.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/intel/compiler/brw_fs_generator.cpp b/src/intel/compiler/brw_fs_generator.cpp
index 2ace57a319f..a129db198b6 100644
--- a/src/intel/compiler/brw_fs_generator.cpp
+++ b/src/intel/compiler/brw_fs_generator.cpp
@@ -2517,7 +2517,8 @@ fs_generator::generate_code(const cfg_t *cfg, int dispatch_width,
          struct brw_reg strided = stride(suboffset(src[0], component),
                                          vstride, width, 0);
          if (type_sz(src[0].type) > 4 &&
-             (devinfo->is_cherryview || gen_device_info_is_9lp(devinfo))) {
+             (devinfo->is_cherryview || gen_device_info_is_9lp(devinfo) ||
+              !devinfo->has_64bit_float)) {
             /* IVB has an issue (which we found empirically) where it reads
              * two address register components per channel for indirectly
              * addressed 64-bit sources.