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| author | Matthias Braun <matze@braunis.de> | 2016-02-13 04:35:31 +0000 |
|---|---|---|
| committer | Matthias Braun <matze@braunis.de> | 2016-02-13 04:35:31 +0000 |
| commit | bbb528f1892b2ae78cf08a3e699deb4e0481b413 (patch) | |
| tree | d29fb4a3a68ae669f2d8b5dbcd8094393eb36f6a /llvm/lib/CodeGen/PHIElimination.cpp | |
| parent | f2ddbf00ede6e23279b509371c15011f00db56a0 (diff) | |
| download | bcm5719-llvm-bbb528f1892b2ae78cf08a3e699deb4e0481b413.tar.gz bcm5719-llvm-bbb528f1892b2ae78cf08a3e699deb4e0481b413.zip | |
LiveIntervalAnalysis: Remove LiveVariables requirement
This requirement was a huge hack to keep LiveVariables alive because it
was optionally used by TwoAddressInstructionPass and PHIElimination.
However we have AnalysisUsage::addUsedIfAvailable() which we can use in
those passes.
llvm-svn: 260806
Diffstat (limited to 'llvm/lib/CodeGen/PHIElimination.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/PHIElimination.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/PHIElimination.cpp b/llvm/lib/CodeGen/PHIElimination.cpp index 2c937926d0a..0472378aeee 100644 --- a/llvm/lib/CodeGen/PHIElimination.cpp +++ b/llvm/lib/CodeGen/PHIElimination.cpp @@ -121,6 +121,7 @@ INITIALIZE_PASS_END(PHIElimination, "phi-node-elimination", "Eliminate PHI nodes for register allocation", false, false) void PHIElimination::getAnalysisUsage(AnalysisUsage &AU) const { + AU.addUsedIfAvailable<LiveVariables>(); AU.addPreserved<LiveVariables>(); AU.addPreserved<SlotIndexes>(); AU.addPreserved<LiveIntervals>(); |
