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| author | Geoff Berry <gberry@codeaurora.org> | 2018-02-27 16:59:10 +0000 |
|---|---|---|
| committer | Geoff Berry <gberry@codeaurora.org> | 2018-02-27 16:59:10 +0000 |
| commit | a2b901129099b93f20e8cdf41f520e31398c0c4d (patch) | |
| tree | dce027ceb74117c28b4d882383b8ebb172de0fd7 /llvm/lib/CodeGen/TargetPassConfig.cpp | |
| parent | 3bfa8f01207f907551c8ea39a938e0f2f8ec018b (diff) | |
| download | bcm5719-llvm-a2b901129099b93f20e8cdf41f520e31398c0c4d.tar.gz bcm5719-llvm-a2b901129099b93f20e8cdf41f520e31398c0c4d.zip | |
Re-enable "[MachineCopyPropagation] Extend pass to do COPY source forwarding"
Re-enable commit r323991 now that r325931 has been committed to make
MachineOperand::isRenamable() check more conservative w.r.t. code
changes and opt-in on a per-target basis.
llvm-svn: 326208
Diffstat (limited to 'llvm/lib/CodeGen/TargetPassConfig.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/TargetPassConfig.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/TargetPassConfig.cpp b/llvm/lib/CodeGen/TargetPassConfig.cpp index bfe8f152a71..f502ae202c3 100644 --- a/llvm/lib/CodeGen/TargetPassConfig.cpp +++ b/llvm/lib/CodeGen/TargetPassConfig.cpp @@ -1083,6 +1083,10 @@ void TargetPassConfig::addOptimizedRegAlloc(FunctionPass *RegAllocPass) { // kill markers. addPass(&StackSlotColoringID); + // Copy propagate to forward register uses and try to eliminate COPYs that + // were not coalesced. + addPass(&MachineCopyPropagationID); + // Run post-ra machine LICM to hoist reloads / remats. // // FIXME: can this move into MachineLateOptimization? |
