Various combinations of these instructions are found on many architectures. They appear directly as-is on Midgard; some of them should be implementable on Intel Gen8+ via the source modifiers; I was told over IRC that AMD/Nouveau might have some of these as well. Rather than forcing backends to grapple with these directly, let's add some new opcodes to NIR to support them so we can use a proper algebraic pass.
Alyssa Rosenzweig (2): nir: Add inverted bitwise ops panfrost/midgard: Use inverted forms src/compiler/nir/nir.h | 4 ++++ src/compiler/nir/nir_opcodes.py | 18 ++++++++++++++++++ src/compiler/nir/nir_opt_algebraic.py | 12 ++++++++++++ .../drivers/panfrost/midgard/midgard_compile.c | 5 +++++ .../drivers/panfrost/midgard/midgard_compile.h | 5 ++++- 5 files changed, 43 insertions(+), 1 deletion(-) -- 2.20.1 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
