There are a couple of cycle count changes in shader-db, but it's
basically a wash.
However, with the Broadwell scalar TCS backend enabled, many
Shadow of Mordor shaders benefit from this patch. Because we don't
batch up output writes for TCS, vec4 outputs might not have all
components defined. Many output writes have a value of undef,
which is useless.
With scalar TCS, stats for tessellation shaders on Broadwell:
total instructions in shared programs: 1283000 -> 1280444 (-0.20%)
instructions in affected programs: 34302 -> 31746 (-7.45%)
helped: 71
HURT: 0
total cycles in shared programs: 10798768 -> 10780682 (-0.17%)
cycles in affected programs: 158004 -> 139918 (-11.45%)
helped: 71
HURT: 0
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
shader-db statistics on Broadwell:
total instructions in shared programs: 8963409 -> 8962455 (-0.01%)
instructions in affected programs: 60858 -> 59904 (-1.57%)
helped: 318
HURT: 0
total cycles in shared programs: 71408022 -> 71406276 (-0.00%)
cycles in affected programs: 398416 -> 396670 (-0.44%)
helped: 199
HURT: 51
GAINED: 1
The only shaders affected were in Dota 2 Reborn.
It also sets up for the next optimization.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
This better reflects what it does. I plan to add other ALU
optimizations as well, so the old name would be confusing.
In preparation for that, also move the file comments about csels
above the opt_undef_csel function, and delete the ones about there
not being other optimizations.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
The assert was null checking dest_arr_parent twice. The intention
seems to be to check both dest_ and src_.
Added in d3636da9
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
Split 32-bit and 64-bit fmod lowering as the drivers might need to
lower them separately inside NIR depending on the HW support.
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
There are rounding errors with the division in i965 that affect
the mod(x,y) result when x = N * y. Instead of returning '0' it
was returning 'y'.
This lowering pass fixes those cases.
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Parenthesis are needed here as ! takes precedence over the &. The
check had the opposite effect than intended.
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
There is no sense in having the double version of ldexp take a 64-bit
integer. Instead, let's just take a 32-bit int all the time. This also
matches what GLSL does where both variants of ldexp take a regular integer
for the exponent argument.
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
The new expressions are more explicit in terms of where the bits go so it's
a little easier to tell what's going on. This is the way GLSL specifies
things so it's a bit easier to verify too. It also has the benifit that
the new expressions easily vectorize so we can constant-fold vector forms
of the _split versions correctly.
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
This matches the "foreach x in container" pattern found in many other
programming languages. Generated by the following regular expression:
s/nir_foreach_def(\([^,]*\),\s*\([^,]*\))/nir_foreach_def(\2, \1)/
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This matches the "foreach x in container" pattern found in many other
programming languages. Generated by the following regular expression:
s/nir_foreach_use(\([^,]*\),\s*\([^,]*\))/nir_foreach_use(\2, \1)/
and similar expressions for nir_foreach_use_safe, etc.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This matches the "foreach x in container" pattern found in many other
programming languages. Generated by the following regular expression:
s/nir_foreach_function(\([^,]*\),\s*\([^,]*\))/nir_foreach_function(\2, \1)/
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This matches the "foreach x in container" pattern found in many other
programming languages.
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This matches the "foreach x in container" pattern found in many other
programming languages. Generated by the following regular expression:
s/nir_foreach_phi_src(\([^,]*\),\s*\([^,]*\))/nir_foreach_phi_src(\2, \1)/
and a similar expression for nir_foreach_phi_src_safe.
Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
This matches the "foreach x in container" pattern found in many other
programming languages. Generated by the following regular expression:
s/nir_foreach_instr(\([^,]*\),\s*\([^,]*\))/nir_foreach_instr(\2, \1)/
and similar expressions for nir_foreach_instr_safe etc.
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
