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Reviewed-by: Thomas Helland <[email protected]>
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mesa/src/glsl/nir/nir_lower_tex_projector.c: In function 'nir_lower_tex_projector_block':
mesa/src/glsl/nir/nir_lower_tex_projector.c:63:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < tex->num_srcs; i++) {
^
mesa/src/glsl/nir/nir_lower_tex_projector.c: In function 'nir_lower_tex_projector_block':
mesa/src/glsl/nir/nir_lower_tex_projector.c:114:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = proj_index + 1; i < tex->num_srcs; i++) {
^
mesa/src/glsl/nir/nir_lower_tex_projector.c: In function 'nir_lower_tex_projector_block':
mesa/src/glsl/nir/nir_lower_tex_projector.c:53:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (proj_index = 0; proj_index < tex->num_srcs; proj_index++) {
^
mesa/src/glsl/nir/nir_lower_tex_projector.c:57:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (proj_index == tex->num_srcs)
^
mesa/src/glsl/nir/nir_search.c: In function 'match_value':
mesa/src/glsl/nir/nir_search.c:84:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < num_components; ++i)
^
mesa/src/glsl/nir/nir_search.c: In function 'match_value':
mesa/src/glsl/nir/nir_search.c:110:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (int i = 0; i < num_components; ++i) {
^
mesa/src/glsl/nir/nir_search.c: In function 'match_value':
mesa/src/glsl/nir/nir_search.c:139:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (i < num_components)
^
mesa/src/glsl/nir/nir_opt_peephole_ffma.c: In function 'get_mul_for_src':
mesa/src/glsl/nir/nir_opt_peephole_ffma.c:130:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for (unsigned i = 0; i < num_components; i++)
^
Signed-off-by: Rhys Kidd <[email protected]>
Reviewed-by: Thomas Helland <[email protected]>
Reviewed-by: Jan Vesely <[email protected]>
Reviewed-by: Emil Velikov <[email protected]>
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Signed-off-by: Rob Clark <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
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Shader-db results on Broadwell:
total instructions in shared programs: 7152330 -> 7137006 (-0.21%)
instructions in affected programs: 1330548 -> 1315224 (-1.15%)
helped: 5797
HURT: 76
GAINED: 0
LOST: 8
Reviewed-by: Connor Abbott <[email protected]>
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Reviewed-by: Connor Abbott <[email protected]>
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Previously, this case was being handled in match_expression prior to
calling match_value. However, there is really no good reason for this
given that match_value has all of the information it needs. Also, they
weren't being handled properly in the commutative case and putting it in
match_value gives us that for free.
Reviewed-by: Connor Abbott <[email protected]>
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Reviewed-by: Connor Abbott <[email protected]>
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Suggested by Jason on a different patch after some comments /
questions by Ilia.
Signed-off-by: Ian Romanick <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>
Reviewed-by: Connor Abbott <[email protected]>
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We have some useful optimizations to drop things like 'ine a, 0' on a
boolean argument, but if 'a' came from logical operations on bools, it
couldn't tell. These kinds of constructs appear as a result of TGSI->NIR
quite frequently (at least with if flattening), so being a little more
aggressive in detecting booleans can pay off.
v2: Add ixor as a booleanness-preserving op (Suggestion by Connor).
vc4 results:
total instructions in shared programs: 40207 -> 39881 (-0.81%)
instructions in affected programs: 6677 -> 6351 (-4.88%)
Reviewed-by: Matt Turner <[email protected]> (v1)
Reviewed-by: Connor Abbott <[email protected]>
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This allows you to match on an unknown value but only if it is of a given
type. 90% of the uses of this are for matching only booleans, but adding
the generality of arbitrary types is no more complex.
nir_algebraic.py doesn't handle this yet but that's ok because the C
language will ensure that the default type on all variables is void.
Reviewed-by: Kenneth Graunke <[email protected]>
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There are some algebraic transformations that we want to do but only if
certain things are constants. For instance, we may want to replace
a * (b + c) with (a * b) + (a * c) as long as a and either b or c is constant.
While this generates more instructions, some of it will get constant
folded.
nir_algebraic.py doesn't handle this yet, but that's ok because the C
language will make sure that false is the default for now.
Reviewed-by: Kenneth Graunke <[email protected]>
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This avoids the overhead of copying structures and better matches the newly
added nir_alu_src_copy and nir_alu_dest_copy.
Reviewed-by: Eric Anholt <[email protected]>
Reviewed-by: Connor Abbott <[email protected]>
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Almost all instructions we nir_ssa_def_init() for are nir_dests, and you
have to keep from forgetting to set is_ssa when you do. Just provide the
simpler helper, instead.
Reviewed-by: Jason Ekstrand <[email protected]>
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Designated initializers with anonymous unions don't work in MSVC or
GCC < 4.6. With a couple of constructor methods, we don't need them any
more and the code is actually cleaner.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88467
Reviewed-by: Connor Abbot <[email protected]>
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Prior to this commit, we had a big switch statement for this. Now it's
baked into the opcode metadata so we can just use that.
Reviewed-by: Connor Abbott <[email protected]>
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As it was, we weren't ever using load_const in a non-SSA way. This allows
us to substantially simplify the load_const instruction. If we ever need a
non-SSA constant load, we can do a load_const and an imov.
Reviewed-by: Connor Abbott <[email protected]>
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This framework provides a simple way to do simple search-and-replace
operations on NIR code. The nir_search.h header provides four simple data
structures for representing expressions: nir_value and four subtypes:
nir_variable, nir_constant, and nir_expression. An expression tree can
then be represented by nesting these data structures as needed. The
nir_replace_instr function takes an instruction, an expression, and a
value; if the instruction matches the expression, it is replaced with a new
chain of instructions to generate the given replacement value. The
framework keeps track of swizzles on sources and automatically generates
the currect swizzles for the replacement value.
Reviewed-by: Connor Abbott <[email protected]>
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