all: avx-512 #163
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all: avx-512 #163
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## master #163 +/- ##
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- Coverage 79.48% 75.75% -3.74%
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Files 55 58 +3
Lines 30881 79419 +48538
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+ Hits 24546 60163 +35617
- Misses 6189 19100 +12911
- Partials 146 156 +10
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Closed
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Contributing a ternary logic calculator: https://gist.github.com/klauspost/d4e15beb00c8a3a3307ad6e027da58d1 All rights granted to use as you see fit :) |
Merged
Cute! Thanks. So there is a trick for these that works most of the time. You create special constants for each of the three inputs, and then you can produce the truth table by doing the corresponding operation on the special constants. Like this: >>> A = 0b11110000
>>> B = 0b11001100
>>> C = 0b10101010
>>> hex(A | B | C)
'0xfe'
>>> hex(A & B & C)
'0x80'
>>> hex(A ^ B ^ C)
'0x96'
>>> hex((A & B) | (~A & C)) # choose
'0xca'
>>> hex((A & B) | (A & C) | (B & C)) # majority
'0xe8'
>>> It's not as clean for the |
mmcloughlin
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Nov 13, 2021
all: AVX-512 Extends avo to support most AVX-512 instruction sets. The instruction type is extended to support suffixes. The K family of opmask registers is added to the register package, and the operand package is updated to support the new operand types. Move instruction deduction in `Load` and `Store` is extended to support KMOV* and VMOV* forms. Internal code generation packages were overhauled. Instruction database loading required various messy changes to account for the additional complexities of the AVX-512 instruction sets. The internal/api package was added to introduce a separation between instruction forms in the database, and the functions avo provides to create them. This was required since with instruction suffixes there is no longer a one-to-one mapping between instruction constructors and opcodes. AVX-512 bloated generated source code size substantially, initially increasing compilation and CI test times to an unacceptable level. Two changes were made to address this: 1. Instruction constructors in the `x86` package moved to an optab-based approach. This compiles substantially faster than the verbose code generation we had before. 2. The most verbose code-generated tests are moved under build tags and limited to a stress test mode. Stress test builds are run on schedule but not in regular CI. An example of AVX-512 accelerated 16-lane MD5 is provided to demonstrate and test the new functionality. Updates #20 #163 #229 Co-authored-by: Vaughn Iverson <[email protected]>
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Landed #217. Closing this, but leaving the |
mmcloughlin
added a commit
that referenced
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Nov 13, 2021
Extends avo to support most AVX-512 instruction sets. The instruction type is extended to support suffixes. The K family of opmask registers is added to the register package, and the operand package is updated to support the new operand types. Move instruction deduction in `Load` and `Store` is extended to support KMOV* and VMOV* forms. Internal code generation packages were overhauled. Instruction database loading required various messy changes to account for the additional complexities of the AVX-512 instruction sets. The internal/api package was added to introduce a separation between instruction forms in the database, and the functions avo provides to create them. This was required since with instruction suffixes there is no longer a one-to-one mapping between instruction constructors and opcodes. AVX-512 bloated generated source code size substantially, initially increasing compilation and CI test times to an unacceptable level. Two changes were made to address this: 1. Instruction constructors in the `x86` package moved to an optab-based approach. This compiles substantially faster than the verbose code generation we had before. 2. The most verbose code-generated tests are moved under build tags and limited to a stress test mode. Stress test builds are run on schedule but not in regular CI. An example of AVX-512 accelerated 16-lane MD5 is provided to demonstrate and test the new functionality. Updates #20 #163 #229 Co-authored-by: Vaughn Iverson <[email protected]>
mmcloughlin
added a commit
that referenced
this pull request
Nov 13, 2021
Extends avo to support most AVX-512 instruction sets.
The instruction type is extended to support suffixes. The K family of opmask
registers is added to the register package, and the operand package is updated
to support the new operand types. Move instruction deduction in `Load` and
`Store` is extended to support KMOV* and VMOV* forms.
Internal code generation packages were overhauled. Instruction database loading
required various messy changes to account for the additional complexities of the
AVX-512 instruction sets. The internal/api package was added to introduce a
separation between instruction forms in the database, and the functions avo
provides to create them. This was required since with instruction suffixes there
is no longer a one-to-one mapping between instruction constructors and opcodes.
AVX-512 bloated generated source code size substantially, initially increasing
compilation and CI test times to an unacceptable level. Two changes were made to
address this:
1. Instruction constructors in the `x86` package moved to an optab-based
approach. This compiles substantially faster than the verbose code
generation we had before.
2. The most verbose code-generated tests are moved under build tags and
limited to a stress test mode. Stress test builds are run on
schedule but not in regular CI.
An example of AVX-512 accelerated 16-lane MD5 is provided to demonstrate and
test the new functionality.
Updates #20 #163 #229
Co-authored-by: Vaughn Iverson <[email protected]>
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Work in progress towards AVX-512 support.
Updates #20