aboutsummaryrefslogtreecommitdiff
path: root/include/llvm/CodeGen/MachineTraceMetrics.h
AgeCommit message (Collapse)Author
2013-05-05Add ArrayRef constructor from None, and do the cleanups that this ↵Dmitri Gribenko
constructor enables Patch by Robert Wilhelm. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@181138 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-27Generalize the MachineTraceMetrics public API.Andrew Trick
Naturally, we should be able to pass in extra instructions, not just extra blocks. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@180667 91177308-0d34-0410-b5e6-96231b3b80d8
2013-04-02Count processor resources individually in MachineTraceMetrics.Jakob Stoklund Olesen
The new instruction scheduling models provide information about the number of cycles consumed on each processor resource. This makes it possible to estimate ILP more accurately than simply counting instructions / issue width. The functions getResourceDepth() and getResourceLength() now identify the limiting processor resource, and return a cycle count based on that. This gives more precise resource information, particularly in traces that use one resource a lot more than others. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@178553 91177308-0d34-0410-b5e6-96231b3b80d8
2013-03-07Rename isEarlierInSameTrace to isUsefulDominator.Jakob Stoklund Olesen
In very rare cases caused by irreducible control flow, the dominating block can have the same trace head without actually being part of the trace. As long as such a dominator still has valid instruction depths, it is OK to use it for computing instruction depths. Rename the function to avoid lying, and add a check that instruction depths are computed for the dominator. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@176668 91177308-0d34-0410-b5e6-96231b3b80d8
2013-01-17Move MachineTraceMetrics.h into include/llvm/CodeGen.Jakob Stoklund Olesen
Let targets use it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172688 91177308-0d34-0410-b5e6-96231b3b80d8