https://bugs.llvm.org/show_bug.cgi?id=42792
Bug ID: 42792
Summary: Update llvm-exegesis to use libLLVMMCA to predict
scheduling
Product: tools
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: llvm-exegesis
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
The scheduling modelling in
llvm\tools\llvm-exegesis\lib\SchedClassResolution.cpp should be replaced to
call the equivalent functionality in libLLVMMCA.
We shouldn't have two implemenations, and there are minor differences between
them which means that we can't easily use llvm-exegesis to confirm the model
matches the hardware's behaviour [Bug #37697].
This will then let us easily check the models for special predicate cases (move
idioms, dependency breakers etc.)
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