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Revision tags: llvmorg-18.1.8, llvmorg-18.1.7, llvmorg-18.1.6, llvmorg-18.1.5, llvmorg-18.1.4, llvmorg-18.1.3, llvmorg-18.1.2, llvmorg-18.1.1, llvmorg-18.1.0, llvmorg-18.1.0-rc4, llvmorg-18.1.0-rc3, llvmorg-18.1.0-rc2, llvmorg-18.1.0-rc1, llvmorg-19-init
# c630f95f 06-Dec-2023 Kazu Hirata <kazu@google.com>

[llvm-exegesis] Remove unnecessary includes (NFC)

Identified with clangd.
Revision tags: llvmorg-17.0.6, llvmorg-17.0.5, llvmorg-17.0.4, llvmorg-17.0.3, llvmorg-17.0.2, llvmorg-17.0.1, llvmorg-17.0.0, llvmorg-17.0.0-rc4, llvmorg-17.0.0-rc3, llvmorg-17.0.0-rc2, llvmorg-17.0.0-rc1, llvmorg-18-init, llvmorg-16.0.6, llvmorg-16.0.5, llvmorg-16.0.4, llvmorg-16.0.3, llvmorg-16.0.2, llvmorg-16.0.1, llvmorg-16.0.0, llvmorg-16.0.0-rc4, llvmorg-16.0.0-rc3, llvmorg-16.0.0-rc2, llvmorg-16.0.0-rc1, llvmorg-17-init, llvmorg-15.0.7
# 2ffe225d 06-Dec-2022 Roman Lebedev <lebedev.ri@gmail.com>

[llvm-exegesis] parallel snippet generator: avoid Read-After-Write pitfail for instrs w/ tied variables

As it is being discussed in https://github.com/llvm/llvm-project/issues/59325,
at least for th

[llvm-exegesis] parallel snippet generator: avoid Read-After-Write pitfail for instrs w/ tied variables

As it is being discussed in https://github.com/llvm/llvm-project/issues/59325,
at least for the instructions with tied variables,
when trying to parallelize the instructions,
register selection is rather bad, and may either
use a register which we have used for def,
or vice versa.

That introduces serialization, and leads to
overly pessimistic inverse throughput measurement.

The new implementation avoids that,

New result:
```
$ ninja llvm-exegesis && ./bin/llvm-exegesis --mode=inverse_throughput --opcode-name=VFMADD132PDr --max-configs-per-opcode=9182
ninja: no work to do.
Check generated assembly with: /usr/bin/objdump -d /tmp/snippet-4af034.o
---
mode: inverse_throughput
key:
instructions:
- 'VFMADD132PDr XMM3 XMM3 XMM4 XMM8'
- 'VFMADD132PDr XMM5 XMM5 XMM14 XMM7'
- 'VFMADD132PDr XMM10 XMM10 XMM11 XMM15'
- 'VFMADD132PDr XMM13 XMM13 XMM15 XMM15'
- 'VFMADD132PDr XMM12 XMM12 XMM11 XMM1'
- 'VFMADD132PDr XMM0 XMM0 XMM6 XMM9'
- 'VFMADD132PDr XMM2 XMM2 XMM15 XMM11'
config: ''
register_initial_values:
- 'XMM3=0x0'
- 'XMM4=0x0'
- 'XMM8=0x0'
- 'MXCSR=0x0'
- 'XMM5=0x0'
- 'XMM14=0x0'
- 'XMM7=0x0'
- 'XMM10=0x0'
- 'XMM11=0x0'
- 'XMM15=0x0'
- 'XMM13=0x0'
- 'XMM12=0x0'
- 'XMM1=0x0'
- 'XMM0=0x0'
- 'XMM6=0x0'
- 'XMM9=0x0'
- 'XMM2=0x0'
cpu_name: znver3
llvm_triple: x86_64-unknown-linux-gnu
num_repetitions: 10000
measurements:
- { key: inverse_throughput, value: 0.6403, per_snippet_value: 4.4821 }
error: ''
info: instruction has tied variables, avoiding Read-After-Write issue, picking random def and use registers not aliasing each other, randomizing registers for uses
assembled_snippet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
...
Check generated assembly with: /usr/bin/objdump -d /tmp/snippet-f05c2f.o
---
mode: inverse_throughput
key:
instructions:
- 'VFMADD132PDr XMM15 XMM15 XMM11 XMM2'
- 'VFMADD132PDr XMM5 XMM5 XMM11 XMM2'
- 'VFMADD132PDr XMM14 XMM14 XMM11 XMM2'
- 'VFMADD132PDr XMM4 XMM4 XMM11 XMM2'
- 'VFMADD132PDr XMM8 XMM8 XMM11 XMM2'
- 'VFMADD132PDr XMM3 XMM3 XMM11 XMM2'
- 'VFMADD132PDr XMM10 XMM10 XMM11 XMM2'
- 'VFMADD132PDr XMM7 XMM7 XMM11 XMM2'
- 'VFMADD132PDr XMM13 XMM13 XMM11 XMM2'
- 'VFMADD132PDr XMM9 XMM9 XMM11 XMM2'
- 'VFMADD132PDr XMM1 XMM1 XMM11 XMM2'
- 'VFMADD132PDr XMM6 XMM6 XMM11 XMM2'
- 'VFMADD132PDr XMM0 XMM0 XMM11 XMM2'
- 'VFMADD132PDr XMM12 XMM12 XMM11 XMM2'
config: ''
register_initial_values:
- 'XMM15=0x0'
- 'XMM11=0x0'
- 'XMM2=0x0'
- 'MXCSR=0x0'
- 'XMM5=0x0'
- 'XMM14=0x0'
- 'XMM4=0x0'
- 'XMM8=0x0'
- 'XMM3=0x0'
- 'XMM10=0x0'
- 'XMM7=0x0'
- 'XMM13=0x0'
- 'XMM9=0x0'
- 'XMM1=0x0'
- 'XMM6=0x0'
- 'XMM0=0x0'
- 'XMM12=0x0'
cpu_name: znver3
llvm_triple: x86_64-unknown-linux-gnu
num_repetitions: 10000
measurements:
- { key: inverse_throughput, value: 0.5312, per_snippet_value: 7.4368 }
error: ''
info: instruction has tied variables, avoiding Read-After-Write issue, picking random def and use registers not aliasing each other, one unique register for each use position
assembled_snippet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
...
Check generated assembly with: /usr/bin/objdump -d /tmp/snippet-c32060.o
---
mode: inverse_throughput
key:
instructions:
- 'VFMADD132PDr XMM10 XMM10 XMM6 XMM6'
- 'VFMADD132PDr XMM8 XMM8 XMM6 XMM6'
- 'VFMADD132PDr XMM12 XMM12 XMM6 XMM6'
- 'VFMADD132PDr XMM9 XMM9 XMM6 XMM6'
- 'VFMADD132PDr XMM7 XMM7 XMM6 XMM6'
- 'VFMADD132PDr XMM1 XMM1 XMM6 XMM6'
- 'VFMADD132PDr XMM0 XMM0 XMM6 XMM6'
- 'VFMADD132PDr XMM5 XMM5 XMM6 XMM6'
- 'VFMADD132PDr XMM11 XMM11 XMM6 XMM6'
- 'VFMADD132PDr XMM2 XMM2 XMM6 XMM6'
- 'VFMADD132PDr XMM15 XMM15 XMM6 XMM6'
- 'VFMADD132PDr XMM3 XMM3 XMM6 XMM6'
- 'VFMADD132PDr XMM14 XMM14 XMM6 XMM6'
- 'VFMADD132PDr XMM4 XMM4 XMM6 XMM6'
- 'VFMADD132PDr XMM13 XMM13 XMM6 XMM6'
config: ''
register_initial_values:
- 'XMM10=0x0'
- 'XMM6=0x0'
- 'MXCSR=0x0'
- 'XMM8=0x0'
- 'XMM12=0x0'
- 'XMM9=0x0'
- 'XMM7=0x0'
- 'XMM1=0x0'
- 'XMM0=0x0'
- 'XMM5=0x0'
- 'XMM11=0x0'
- 'XMM2=0x0'
- 'XMM15=0x0'
- 'XMM3=0x0'
- 'XMM14=0x0'
- 'XMM4=0x0'
- 'XMM13=0x0'
cpu_name: znver3
llvm_triple: x86_64-unknown-linux-gnu
num_repetitions: 10000
measurements:
- { key: inverse_throughput, value: 0.5311, per_snippet_value: 7.9665 }
error: ''
info: instruction has tied variables, avoiding Read-After-Write issue, picking random def and use registers not aliasing each other, reusing the same register for all uses
assembled_snippet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
...
```

Reviewed By: courbet

Differential Revision: https://reviews.llvm.org/D139283

show more ...


Revision tags: llvmorg-15.0.6, llvmorg-15.0.5, llvmorg-15.0.4, llvmorg-15.0.3, working, llvmorg-15.0.2, llvmorg-15.0.1, llvmorg-15.0.0, llvmorg-15.0.0-rc3, llvmorg-15.0.0-rc2, llvmorg-15.0.0-rc1, llvmorg-16-init, llvmorg-14.0.6, llvmorg-14.0.5, llvmorg-14.0.4, llvmorg-14.0.3, llvmorg-14.0.2, llvmorg-14.0.1, llvmorg-14.0.0, llvmorg-14.0.0-rc4, llvmorg-14.0.0-rc3, llvmorg-14.0.0-rc2, llvmorg-14.0.0-rc1, llvmorg-15-init, llvmorg-13.0.1, llvmorg-13.0.1-rc3, llvmorg-13.0.1-rc2, llvmorg-13.0.1-rc1, llvmorg-13.0.0, llvmorg-13.0.0-rc4, llvmorg-13.0.0-rc3, llvmorg-13.0.0-rc2, llvmorg-13.0.0-rc1, llvmorg-14-init
# dbefcde6 27-Jul-2021 Tom Stellard <tstellar@redhat.com>

Merge all the llvm-exegesis unit tests into a single binary

These tests access private symbols in the backends, so they cannot link
against libLLVM.so and must be statically linked. Linking these t

Merge all the llvm-exegesis unit tests into a single binary

These tests access private symbols in the backends, so they cannot link
against libLLVM.so and must be statically linked. Linking these tests
can be slow and with debug builds the resulting binaries use a lot of
disk space.

By merging them into a single test binary means we now only need to
statically link 1 test instead of 6, which helps reduce the build
times and saves disk space.

Reviewed By: courbet

Differential Revision: https://reviews.llvm.org/D106464

show more ...


Revision tags: llvmorg-12.0.1, llvmorg-12.0.1-rc4, llvmorg-12.0.1-rc3, llvmorg-12.0.1-rc2, llvmorg-12.0.1-rc1, llvmorg-12.0.0, llvmorg-12.0.0-rc5, llvmorg-12.0.0-rc4, llvmorg-12.0.0-rc3, llvmorg-12.0.0-rc2, llvmorg-11.1.0, llvmorg-11.1.0-rc3, llvmorg-12.0.0-rc1, llvmorg-13-init, llvmorg-11.1.0-rc2, llvmorg-11.1.0-rc1, llvmorg-11.0.1, llvmorg-11.0.1-rc2
# c8ec685c 04-Dec-2020 Jinsong Ji <jji@us.ibm.com>

[llvm-exegesis][PowerPC] Add more register classes

This PR adds more register class support in PowerPC,
mark OperandType for imm and memory operands.

Also added more unit tests for SnippetGenerator

[llvm-exegesis][PowerPC] Add more register classes

This PR adds more register class support in PowerPC,
mark OperandType for imm and memory operands.

Also added more unit tests for SnippetGenerator.

Reviewed By: #powerpc, steven.zhang

Differential Revision: https://reviews.llvm.org/D88044

show more ...