https://bugs.llvm.org/show_bug.cgi?id=39165
Bug ID: 39165
Summary: [llvm-exegesis] Bind PFM Counters to the CPUs instead
of the SchedModel
Product: libraries
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: X86
Assignee: unassignedb...@nondot.org
Reporter: llvm-...@redking.me.uk
CC: andrea.dibia...@gmail.com, clement.cour...@gmail.com,
craig.top...@gmail.com, gchate...@google.com,
lebedev...@gmail.com, llvm-bugs@lists.llvm.org
As discussed on D52779, its probably a good idea to bind the PFM counters to
the CPUs instead of the SchedModel.
Not only will this make it easier to reuse models where perf counters don't
match (e.g. bdver1/2 vs bdver3/4 and x86_64 generic) but it could make new
models easier to create - by allowing the cpu to initially just specify
cycle/uop counters.
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