https://bugs.llvm.org/show_bug.cgi?id=52198
Bug ID: 52198
Summary: [llvm-mca] Improve barriers for strict region marking
Product: tools
Version: trunk
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: llvm-mca
Assignee: unassignedb...@nondot.org
Reporter: llvm-...@redking.me.uk
CC: andrea.dibia...@gmail.com, lebedev...@gmail.com,
llvm-bugs@lists.llvm.org, matthew.da...@sony.com
https://godbolt.org/z/er1Wsb3da
Efficiently calculating the interleaved load/store costs has been greatly
hindered as the llvm-mca region markers aren't great barriers.
https://reviews.llvm.org/D111945
Even if it affects codegen, it'd be very useful if we can get llvm-mca to give
us at least an estimate of costs so we can automate this a little.
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