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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-17 20:37:07 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-03-17 20:37:07 +0000 |
| commit | 6a3dbd3b25bbc99bd1a233d6a74ddea3493ba6ac (patch) | |
| tree | 512a2f340823e0cb054136093b13d679f6200e6b /lib/CodeGen/SplitKit.cpp | |
| parent | c74513d1b6e2f6c91533a23ebbdc47a6f1dfcc0c (diff) | |
| download | llvm-6a3dbd3b25bbc99bd1a233d6a74ddea3493ba6ac.tar.gz llvm-6a3dbd3b25bbc99bd1a233d6a74ddea3493ba6ac.tar.bz2 llvm-6a3dbd3b25bbc99bd1a233d6a74ddea3493ba6ac.tar.xz | |
Dead code elimination may separate the live interval into multiple connected components.
I have convinced myself that it can only happen when a phi value dies. When it
happens, allocate new virtual registers for the components.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127827 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SplitKit.cpp')
| -rw-r--r-- | lib/CodeGen/SplitKit.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/CodeGen/SplitKit.cpp b/lib/CodeGen/SplitKit.cpp index 6f7b972c43..ff00bd8f38 100644 --- a/lib/CodeGen/SplitKit.cpp +++ b/lib/CodeGen/SplitKit.cpp @@ -538,11 +538,11 @@ void SplitEditor::openIntv() { // Create the complement as index 0. if (Edit->empty()) - Edit->create(MRI, LIS, VRM); + Edit->create(LIS, VRM); // Create the open interval. OpenIdx = Edit->size(); - Edit->create(MRI, LIS, VRM); + Edit->create(LIS, VRM); } SlotIndex SplitEditor::enterIntvBefore(SlotIndex Idx) { @@ -802,7 +802,7 @@ void SplitEditor::deleteRematVictims() { if (Dead.empty()) return; - Edit->eliminateDeadDefs(Dead, LIS, TII); + Edit->eliminateDeadDefs(Dead, LIS, VRM, TII); } void SplitEditor::finish() { @@ -866,7 +866,7 @@ void SplitEditor::finish() { SmallVector<LiveInterval*, 8> dups; dups.push_back(li); for (unsigned i = 1; i != NumComp; ++i) - dups.push_back(&Edit->create(MRI, LIS, VRM)); + dups.push_back(&Edit->create(LIS, VRM)); ConEQ.Distribute(&dups[0], MRI); } |