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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-05-19 23:59:27 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2012-05-19 23:59:27 +0000 |
| commit | 4e1e43a355d55e376eeecb11d8f4fd6ff3b852fe (patch) | |
| tree | e840ce29c334eddabef5302194d81eb0db075d8c /llvm/lib/CodeGen/RegisterCoalescer.cpp | |
| parent | a9e9ebcfb5268f2ebab8c46ea9e025e1c0caeddc (diff) | |
| download | bcm5719-llvm-4e1e43a355d55e376eeecb11d8f4fd6ff3b852fe.tar.gz bcm5719-llvm-4e1e43a355d55e376eeecb11d8f4fd6ff3b852fe.zip | |
Simplify overlap check.
llvm-svn: 157137
Diffstat (limited to 'llvm/lib/CodeGen/RegisterCoalescer.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/RegisterCoalescer.cpp | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/llvm/lib/CodeGen/RegisterCoalescer.cpp b/llvm/lib/CodeGen/RegisterCoalescer.cpp index ca5d2807397..7831906c620 100644 --- a/llvm/lib/CodeGen/RegisterCoalescer.cpp +++ b/llvm/lib/CodeGen/RegisterCoalescer.cpp @@ -1397,15 +1397,8 @@ bool RegisterCoalescer::joinIntervals(CoalescerPair &CP) { while (I != IE && J != JE) { // Determine if these two live ranges overlap. - bool Overlaps; - if (I->start < J->start) { - Overlaps = I->end > J->start; - } else { - Overlaps = J->end > I->start; - } - // If so, check value # info to determine if they are really different. - if (Overlaps) { + if (I->end > J->start && J->end > I->start) { // If the live range overlap will map to the same value number in the // result liverange, we can still coalesce them. If not, we can't. if (LHSValNoAssignments[I->valno->id] != |
