According to GLSL.std.450 spec, the operand for step() function must be
a floating-point. It does not restrict the value to 32-bit floats.
Reviewed by: Elie Tournier <elie.tournier@collabora.com>
Fix build with Python < 2.7.
File "src/compiler/nir/nir_builder_opcodes_h.py", line 46, in <module>
from nir_opcodes import opcodes
File "src/compiler/nir/nir_opcodes.py", line 178, in <module>
unop_convert("{}2{}{}".format(src_t[0], dst_t[0], bit_size),
ValueError: zero length field name in format
Fixes: 762a6333f2 ("nir: Rework conversion opcodes")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
The NIR story on conversion opcodes is a mess. We've had way too many
of them, naming is inconsistent, and which ones have explicit sizes was
sort-of random. This commit re-organizes things and makes them all
consistent:
- All non-bool conversion opcodes now have the explicit size in the
destination and are named <src_type>2<dst_type><size>.
- Integer <-> integer conversion opcodes now only come in i2i and u2u
forms (i2u and u2i have been removed) since the only difference
between the different integer conversions is whether or not they
sign-extend when up-converting.
- Boolean conversion opcodes all have the explicit size on the bool and
are named <src_type>2<dst_type>.
Making things consistent also allows nir_type_conversion_op to be moved
to nir_opcodes.c and auto-generated using mako. This will make adding
int8, int16, and float16 versions much easier when the time comes.
Reviewed-by: Eric Anholt <eric@anholt.net>
NIR is a typeless IR and the two opcodes, when considered bitwise, do
exactly the same thing. There's no reason to have two versions.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Previously both sources were unsized. This caused problems when the
thing being shifted was 64-bit but the shift count was 32-bit. The
expectation in NIR is that all unsized sources (and destination) will
ultimately have the same size.
The changes in nir_opt_algebraic.py are to prevent errors like:
Failed to parse transformation:
03:12:25 (('extract_i8', 'a', 'b'), ('ishr', ('ishl', 'a', ('imul', ('isub', 3, 'b'), 8)), 24), 'options->lower_extract_byte')
03:12:25 Traceback (most recent call last):
03:12:25 File "/home/jenkins/workspace/Leeroy_2/repos/mesa/src/compiler/nir/nir_algebraic.py", line 610, in __init__
03:12:25 xform = SearchAndReplace(xform)
03:12:25 File "/home/jenkins/workspace/Leeroy_2/repos/mesa/src/compiler/nir/nir_algebraic.py", line 495, in __init__
03:12:25 BitSizeValidator(varset).validate(self.search, self.replace)
03:12:25 File "/home/jenkins/workspace/Leeroy_2/repos/mesa/src/compiler/nir/nir_algebraic.py", line 311, in validate
03:12:25 validate_dst_class = self._validate_bit_class_up(replace)
03:12:25 File "/home/jenkins/workspace/Leeroy_2/repos/mesa/src/compiler/nir/nir_algebraic.py", line 414, in _validate_bit_class_up
03:12:25 src_class = self._validate_bit_class_up(val.sources[i])
03:12:25 File "/home/jenkins/workspace/Leeroy_2/repos/mesa/src/compiler/nir/nir_algebraic.py", line 420, in _validate_bit_class_up
03:12:25 assert src_class == src_type_bits
03:12:25 AssertionError
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Suggested-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Cc: Jason Ekstrand <jason@jlekstrand.net>
v2 (idr): "cut them down later" => Remove ir_unop_b2u64 and
ir_unop_u642b. Handle these with extra i2u or u2i casts just like
uint(bool) and bool(uint) conversion is done.
v3 (idr): Make the "from" type in a cast unsized. This reduces the
number of required cast operations at the expensive slightly more
complex code. However, this will be a dramatic improvement when other
sized integer types are added. Suggested by Connor.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Found by inspection. Untested beyond compilation. This also matches the
logic used in nir_lower_alu_to_scalar.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Cc: mesa-stable@lists.freedesktop.org
I think these are not strictly necessary since the floats in them
should be automatically promoted to doubles when operated with
double sources, but it makes things more explicit at least.
Reviewed-by: Matt Turner <mattst88@gmail.com>
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>
v2 (Sam):
- Use uint64 instead of float64 for sources and destinations. (Connor)
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
v2 (Sam):
- Use uint64 instead of float64 for sources and destinations. (Connor)
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Some opcodes need explicit bitsizes, and sometimes we need to use the
double version when constant folding.
v2: fix output type for u2f (Iago)
v3: do not change vecN opcodes to be float. The next commit will add
infrastructure to enable 64-bit integer constant folding so this is isn't
really necessary. Also, that created problems with source modifiers in
some cases (Iago)
v4 (Jason):
- do not change bcsel to work in terms of floats
- leave ldexp generic
Squashed changes to handle different bit sizes when constant
folding since otherwise we would break the build.
v2:
- Use the bit-size information from the opcode information if defined (Iago)
- Use helpers to get type size and base type of nir_alu_type enum (Sam)
- Do not fallback to sized types to guess bit-size information. (Jason)
Squashed changes in i965 and gallium/nir drivers to support sized types.
These functions should only see sized types, but we can't make that change
until we make sure that nir uses the sized versions in all the relevant places.
A later commit will address this.
Signed-off-by: Iago Toral Quiroga <itoral@igalia.com>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
Juan A. Suarez Romero
Jason Ekstrand
Vinson Lee
Emil Velikov
Samuel Iglesias Gonsálvez
Ian Romanick
Ilia Mirkin
Iago Toral Quiroga
Rob Clark
Connor Abbott
Matt Turner