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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 | d4bb1d43e8c3565bfdc9d1e5e6c0596dcef6ec35 (patch) | |
| tree | 13e3911a95c1fe52db2a6e56855aa35c5f02cd4c /llvm/lib/CodeGen | |
| parent | 02cf10bdfdd0816031034f9ac61d2424a0d3da5b (diff) | |
| download | bcm5719-llvm-d4bb1d43e8c3565bfdc9d1e5e6c0596dcef6ec35.tar.gz bcm5719-llvm-d4bb1d43e8c3565bfdc9d1e5e6c0596dcef6ec35.zip | |
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.
llvm-svn: 137002
Diffstat (limited to 'llvm/lib/CodeGen')
| -rw-r--r-- | llvm/lib/CodeGen/RegAllocGreedy.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/RegAllocGreedy.cpp b/llvm/lib/CodeGen/RegAllocGreedy.cpp index 450f008b67a..4fcbdb8903e 100644 --- a/llvm/lib/CodeGen/RegAllocGreedy.cpp +++ b/llvm/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 |
