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[Pipelines] Run ArgProm before IPSCCP in non-LTO (WIP) #111672

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[Pipelines] Run ArgProm before IPSCCP in non-LTO (WIP) #111672

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@hazzlim hazzlim commented Oct 9, 2024 

Run Argument Promotion before IPSCCP in the Module Simplification
pipeline, provided we are not LTO pre-link.

Compile-time impact, measured by instruction count, for the CTMark suite
at O3 (non-LTO):

Benchmark        | Change  |
-----------------+---------+
7zip             | +0.11%  |
Bullet           | +0.21%  |
ClamAV           | +0.08%  |
SPASS            | +0.25%  |
consumer-typeset | +0.14%  |
kimwitu++        | +0.35%  |
lencod           | +0.01%  |
mafft            | +0.01%  |
sqlite3          | +0.11%  |
tramp3d-v4       | +0.28%  |
-----------------+---------+
GEOMEAN          | 0.15%   |

hazzlim added 2 commits October 4, 2024 14:22
@hazzlim
[LTO] Run Argument Promotion before IPSCCP
cc21d19 
Run ArgumentPromotion before IPSCCP in the LTO pipeline, to expose more
constants to be propagated. We also run PostOrderFunctionAttrs to
improve the information available to ArgumentPromotion's alias analysis,
and SROA to clean up allocas.
@hazzlim
[Pipelines] Run ArgProm before IPSCCP in non-LTO (WIP)
8b6aed2 
Run Argument Promotion before IPSCCP in the Module Simplification
pipeline, provided we are not LTO pre-link.

Compile-time impact, measured by instruction count, for the CTMark suite
at O3 (non-LTO):

Benchmark        | Change  |
-----------------+---------+
7zip             | +0.11%  |
Bullet           | +0.21%  |
ClamAV           | +0.08%  |
SPASS            | +0.25%  |
consumer-typeset | +0.14%  |
kimwitu++        | +0.35%  |
lencod           | +0.01%  |
mafft            | +0.01%  |
sqlite3          | +0.11%  |
tramp3d-v4       | +0.28%  |
-----------------+---------+
GEOMEAN          | 0.15%   |
@hazzlim hazzlim mentioned this pull request Oct 9, 2024
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