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nir/algebraic: refactor inexact opcode restrictions

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Refactor the code to avoid calling a lot of time to auxiliary functions
when it is not really needed.

Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
This commit is contained in:
Samuel Iglesias Gonsálvez 2019-09-19 12:10:27 +02:00
parent 5b5c5bf833
commit 5ed5e76741
1 changed files with 5 additions and 3 deletions
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8
src/compiler/nir/nir_algebraic.py
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@ -1169,6 +1169,10 @@ ${pass_name}_block(nir_builder *build, nir_block *block,
continue;
unsigned bit_size = alu->dest.dest.ssa.bit_size;
const bool ignore_inexact =
nir_is_float_control_signed_zero_inf_nan_preserve(execution_mode, bit_size) ||
nir_is_denorm_flush_to_zero(execution_mode, bit_size);
switch (states[alu->dest.dest.ssa.index]) {
% for i in range(len(automaton.state_patterns)):
case ${i}:
@ -1176,9 +1180,7 @@ ${pass_name}_block(nir_builder *build, nir_block *block,
for (unsigned i = 0; i < ARRAY_SIZE(${pass_name}_state${i}_xforms); i++) {
const struct transform *xform = &${pass_name}_state${i}_xforms[i];
if (condition_flags[xform->condition_offset] &&
!(xform->search->inexact &&
(nir_is_float_control_signed_zero_inf_nan_preserve(execution_mode, bit_size) ||
nir_is_denorm_flush_to_zero(execution_mode, bit_size))) &&
!(xform->search->inexact && ignore_inexact) &&
nir_replace_instr(build, alu, xform->search, xform->replace)) {
progress = true;
break;