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llvm-svn: 62151
This commit is contained in:
Evan Cheng 2009-01-13 06:08:37 +00:00
parent b282d1b6ff
commit 4f9c47aab9
1 changed files with 1 additions and 1 deletions
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2
llvm/lib/CodeGen/SimpleRegisterCoalescing.cpp
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@ -1744,7 +1744,7 @@ SimpleRegisterCoalescing::JoinIntervals(LiveInterval &LHS, LiveInterval &RHS,
// less conservative check. It's possible a sub-register is defined before // less conservative check. It's possible a sub-register is defined before
// v1024 (or live in) and live out of BB1. // v1024 (or live in) and live out of BB1.
if (RHS.containsOneValue() && if (RHS.containsOneValue() &&
li_->intervalIsInOneMBB(RHS) && li_->intervalIsInOneMBB(RHS) &&
li_->getApproximateInstructionCount(RHS) <= 10) { li_->getApproximateInstructionCount(RHS) <= 10) {
// Perform a more exhaustive check for some common cases. // Perform a more exhaustive check for some common cases.
if (li_->conflictsWithPhysRegRef(RHS, LHS.reg, true, JoinedCopies)) if (li_->conflictsWithPhysRegRef(RHS, LHS.reg, true, JoinedCopies))