[llvm-bugs] [Bug 36895] New: [X86] Atom scheduler generating incorrect throughputs and latencies
via llvm-bugs
llvm-bugs at lists.llvm.org
Sun Mar 25 18:28:28 PDT 2018
https://bugs.llvm.org/show_bug.cgi?id=36895
Bug ID: 36895
Summary: [X86] Atom scheduler generating incorrect throughputs
and latencies
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: Backend: X86
Assignee: unassignedbugs at nondot.org
Reporter: craig.topper at gmail.com
CC: llvm-bugs at lists.llvm.org
There's lots of incorrect information
For example, ADDPS should have a latency of 5 and throughput of 1, but the
scheduler test shows llvm reporting latency 5 and throughput 5.
llvm reports latency 125 and throughput 62.5 for sqrtpd, but I think it really
should be a throughput of 124 or 125.
I think there are a lot more issues like this.
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