Mesa (main): intel/compiler: Assert that unsupported tg4 offsets were lowered for XeHP

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Module: Mesa
Branch: main
Commit: a026d2d11c8abd2094b2453812ba1ccd947659ac
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=a026d2d11c8abd2094b2453812ba1ccd947659ac

Author: Rafael Antognolli <rafael.antognolli at intel.com>
Date:   Fri Oct 12 15:50:04 2018 -0700

intel/compiler: Assert that unsupported tg4 offsets were lowered for XeHP

Reviewed-by: Jordan Justen <jordan.l.justen at intel.com>
Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14142>

---

 src/intel/compiler/brw_fs_nir.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/intel/compiler/brw_fs_nir.cpp b/src/intel/compiler/brw_fs_nir.cpp
index b44d8c1a94a..f8e2b777bed 100644
--- a/src/intel/compiler/brw_fs_nir.cpp
+++ b/src/intel/compiler/brw_fs_nir.cpp
@@ -6105,6 +6105,11 @@ fs_visitor::nir_emit_texture(const fs_builder &bld, nir_tex_instr *instr)
          if (brw_texture_offset(instr, i, &offset_bits)) {
             header_bits |= offset_bits;
          } else {
+            /* On gfx12.5+, if the offsets are not both constant and in the
+             * {-8,7} range, nir_lower_tex() will have already lowered the
+             * source offset. So we should never reach this point.
+             */
+            assert(devinfo->verx10 < 125);
             srcs[TEX_LOGICAL_SRC_TG4_OFFSET] =
                retype(src, BRW_REGISTER_TYPE_D);
          }