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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-08-05 23:50:33 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-08-05 23:50:33 +0000 |
| commit | ccfa446450c9e3e0b3591343c4c5bea1e4cdc043 (patch) | |
| tree | 3f512d7f56c41f8b87705169b8bda20a23fca3a0 /lib/CodeGen/RegAllocGreedy.cpp | |
| parent | a9c41d39d1adc92107e095aca6f851aed71b6a5f (diff) | |
| download | llvm-ccfa446450c9e3e0b3591343c4c5bea1e4cdc043.tar.gz llvm-ccfa446450c9e3e0b3591343c4c5bea1e4cdc043.tar.bz2 llvm-ccfa446450c9e3e0b3591343c4c5bea1e4cdc043.tar.xz | |
Reject RS_Spill ranges from local splitting as well.
All new local ranges are marked as RS_New now, so there is no need to
attempt splitting of RS_Spill ranges any more.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137002 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/RegAllocGreedy.cpp')
| -rw-r--r-- | lib/CodeGen/RegAllocGreedy.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/CodeGen/RegAllocGreedy.cpp b/lib/CodeGen/RegAllocGreedy.cpp index 450f008b67..4fcbdb8903 100644 --- a/lib/CodeGen/RegAllocGreedy.cpp +++ b/lib/CodeGen/RegAllocGreedy.cpp @@ -1501,6 +1501,10 @@ unsigned RAGreedy::tryLocalSplit(LiveInterval &VirtReg, AllocationOrder &Order, /// @return Physreg when VirtReg may be assigned and/or new NewVRegs. unsigned RAGreedy::trySplit(LiveInterval &VirtReg, AllocationOrder &Order, SmallVectorImpl<LiveInterval*>&NewVRegs) { + // Ranges must be Split2 or less. + if (getStage(VirtReg) >= RS_Spill) + return 0; + // Local intervals are handled separately. if (LIS->intervalIsInOneMBB(VirtReg)) { NamedRegionTimer T("Local Splitting", TimerGroupName, TimePassesIsEnabled); @@ -1510,10 +1514,6 @@ unsigned RAGreedy::trySplit(LiveInterval &VirtReg, AllocationOrder &Order, NamedRegionTimer T("Global Splitting", TimerGroupName, TimePassesIsEnabled); - // Ranges must be Split2 or less. - if (getStage(VirtReg) >= RS_Spill) - return 0; - SA->analyze(&VirtReg); // FIXME: SplitAnalysis may repair broken live ranges coming from the |