diff options
| author | Chen Zheng <czhengsz@cn.ibm.com> | 2020-05-26 22:39:37 -0400 |
|---|---|---|
| committer | Chen Zheng <czhengsz@cn.ibm.com> | 2020-05-31 23:21:04 -0400 |
| commit | 2a24d350dbeacb131af91e8c438fed2bd81698c0 (patch) | |
| tree | 6e5a12141e9f9d4339ed6a8313d1a90ae3bef3c2 /llvm/lib/CodeGen/MachineCombiner.cpp | |
| parent | 3101601b54fbb8062c179e804974b9fb4e2b7c19 (diff) | |
| download | llvm-2a24d350dbeacb131af91e8c438fed2bd81698c0.zip llvm-2a24d350dbeacb131af91e8c438fed2bd81698c0.tar.gz llvm-2a24d350dbeacb131af91e8c438fed2bd81698c0.tar.bz2 | |
[MachineCombine] add a hook for resource length limit
Diffstat (limited to 'llvm/lib/CodeGen/MachineCombiner.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineCombiner.cpp | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/llvm/lib/CodeGen/MachineCombiner.cpp b/llvm/lib/CodeGen/MachineCombiner.cpp index 73895bd..34087d0 100644 --- a/llvm/lib/CodeGen/MachineCombiner.cpp +++ b/llvm/lib/CodeGen/MachineCombiner.cpp @@ -406,12 +406,14 @@ bool MachineCombiner::preservesResourceLen( << ResLenBeforeCombine << " and after: " << ResLenAfterCombine << "\n";); LLVM_DEBUG( - ResLenAfterCombine <= ResLenBeforeCombine + ResLenAfterCombine <= + ResLenBeforeCombine + TII->getExtendResourceLenLimit() ? dbgs() << "\t\t As result it IMPROVES/PRESERVES Resource Length\n" : dbgs() << "\t\t As result it DOES NOT improve/preserve Resource " "Length\n"); - return ResLenAfterCombine <= ResLenBeforeCombine; + return ResLenAfterCombine <= + ResLenBeforeCombine + TII->getExtendResourceLenLimit(); } /// \returns true when new instruction sequence should be generated |