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-rw-r--r--src/glsl/nir/nir_opt_algebraic.py3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/glsl/nir/nir_opt_algebraic.py b/src/glsl/nir/nir_opt_algebraic.py
index 8d5c03b0be7..83a02b6dad6 100644
--- a/src/glsl/nir/nir_opt_algebraic.py
+++ b/src/glsl/nir/nir_opt_algebraic.py
@@ -71,7 +71,8 @@ optimizations = [
(('flrp', a, b, 1.0), b),
(('flrp', a, a, b), a),
(('flrp', 0.0, a, b), ('fmul', a, b)),
- (('fadd', ('fmul', a, b), c), ('ffma', a, b, c)),
+ (('ffma', a, b, c), ('fadd', ('fmul', a, b), c), 'options->lower_ffma'),
+ (('fadd', ('fmul', a, b), c), ('ffma', a, b, c), '!options->lower_ffma'),
# Comparison simplifications
(('inot', ('flt', a, b)), ('fge', a, b)),
(('inot', ('fge', a, b)), ('flt', a, b)),