Here are some patches to fix the values for gl_SubGroupG{e,t}MaskARB.
This fixes a corresponding CTS test.
The first patch alone fixes the problem but it generates somewhat
inefficient code. The next two patches try to address this but I’m not
really sure whether it’s worth it and maybe someone with more
experience of nir can recommend a better way to do it.
I will also post a patch for the Piglit test.
- Neil
Neil Roberts (3):
nir/opt_intrinsics: Fix values for gl_SubGroupG{e,t}MaskARB
nir: Add an intrinsic for a bitmask of the whole subgroup
i965/fs/nir: Don’t let nir lower nir_intrinsic_load_subgroup_all_mask
src/compiler/nir/nir.h | 1 +
src/compiler/nir/nir_intrinsics.h | 1 +
src/compiler/nir/nir_opt_intrinsics.c | 47 +++++++++++++++++++++++++++++++++--
src/intel/compiler/brw_compiler.c | 1 +
src/intel/compiler/brw_fs_nir.cpp | 6 +++++
5 files changed, 54 insertions(+), 2 deletions(-)
--
2.9.5
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