[Mesa-dev] [PATCH v3 10/42] compiler/nir: add lowering option for 16-bit fmod
Iago Toral Quiroga
itoral at igalia.com
Tue Jan 15 13:53:42 UTC 2019
Reviewed-by: Jason Ekstrand <jason at jlekstrand.net>
---
src/compiler/nir/nir.h | 1 +
src/compiler/nir/nir_opt_algebraic.py | 1 +
2 files changed, 2 insertions(+)
diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
index 3cb2d166cb3..19056e79206 100644
--- a/src/compiler/nir/nir.h
+++ b/src/compiler/nir/nir.h
@@ -2112,6 +2112,7 @@ typedef struct nir_shader_compiler_options {
bool lower_fpow;
bool lower_fsat;
bool lower_fsqrt;
+ bool lower_fmod16;
bool lower_fmod32;
bool lower_fmod64;
/** Lowers ibitfield_extract/ubitfield_extract to ibfe/ubfe. */
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py
index 75a3d2ad238..cd969de1f88 100644
--- a/src/compiler/nir/nir_opt_algebraic.py
+++ b/src/compiler/nir/nir_opt_algebraic.py
@@ -636,6 +636,7 @@ optimizations = [
(('bcsel', ('ine', a, -1), ('ifind_msb', a), -1), ('ifind_msb', a)),
# Misc. lowering
+ (('fmod at 16', a, b), ('fsub', a, ('fmul', b, ('ffloor', ('fdiv', a, b)))), 'options->lower_fmod16'),
(('fmod at 32', a, b), ('fsub', a, ('fmul', b, ('ffloor', ('fdiv', a, b)))), 'options->lower_fmod32'),
(('fmod at 64', a, b), ('fsub', a, ('fmul', b, ('ffloor', ('fdiv', a, b)))), 'options->lower_fmod64'),
(('frem', a, b), ('fsub', a, ('fmul', b, ('ftrunc', ('fdiv', a, b)))), 'options->lower_fmod32'),
--
2.17.1
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