diff options
| author | Samuel Pitoiset <[email protected]> | 2018-02-05 16:07:45 +0100 |
|---|---|---|
| committer | Samuel Pitoiset <[email protected]> | 2018-02-22 20:40:43 +0100 |
| commit | b18997876fb4bd82c406d0f6995554c096337888 (patch) | |
| tree | 09e53f27b9cff42e5f8af74cd9205b259765adbd /src/compiler/nir | |
| parent | a01e9996b590a51b3a699b7f6dddda7fc866b362 (diff) | |
nir: add is_used_once for fmul(fexp2(a), fexp2(b)) to fexp2(fadd(a, b))
Otherwise the code size increases because the original fexp2()
instructions can't be deleted.
Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Diffstat (limited to 'src/compiler/nir')
| -rw-r--r-- | src/compiler/nir/nir_opt_algebraic.py | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/compiler/nir/nir_opt_algebraic.py b/src/compiler/nir/nir_opt_algebraic.py index 6dc19d9b121..622ce824b97 100644 --- a/src/compiler/nir/nir_opt_algebraic.py +++ b/src/compiler/nir/nir_opt_algebraic.py @@ -334,7 +334,7 @@ optimizations = [ (('~flog2', ('frcp', a)), ('fneg', ('flog2', a))), (('~flog2', ('frsq', a)), ('fmul', -0.5, ('flog2', a))), (('~flog2', ('fpow', a, b)), ('fmul', b, ('flog2', a))), - (('~fmul', ('fexp2', a), ('fexp2', b)), ('fexp2', ('fadd', a, b))), + (('~fmul', ('fexp2(is_used_once)', a), ('fexp2(is_used_once)', b)), ('fexp2', ('fadd', a, b))), # Division and reciprocal (('~fdiv', 1.0, a), ('frcp', a)), (('fdiv', a, b), ('fmul', a, ('frcp', b)), 'options->lower_fdiv'), |