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nir/algebraic: Remove redundant i2b(-x) pattern

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The exact same pattern appears later (around line 1323).

No shader-db or fossil-db changes on any Intel platform.

Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Jason Ekstrand <jason.ekstrand@collabora.com>
Acked-by: Jesse Natalie <jenatali@microsoft.com>
Tested-by: Daniel Schürmann <daniel@schuermann.dev>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15121>
This commit is contained in:
Ian Romanick 2021-07-14 19:48:11 -07:00 • committed by Marge Bot
parent 8d90b13954
commit 14a9bb04e4
1 changed files with 0 additions and 1 deletions
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src/compiler/nir/nir_opt_algebraic.py
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@ -136,7 +136,6 @@ optimizations = [
(('iabs', ('iabs', a)), ('iabs', a)),
(('iabs', ('ineg', a)), ('iabs', a)),
(('f2b', ('fneg', a)), ('f2b', a)),
(('i2b', ('ineg', a)), ('i2b', a)),
(('~fadd', a, 0.0), a),
# a+0.0 is 'a' unless 'a' is denormal or -0.0. If it's only used by a
# floating point instruction, they should flush any input denormals and we