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Fix PR3486. Fix a bug in code that manually patch physical register live interval after its sub-register is coalesced with a virtual register.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64082 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng
2009-02-08 11:04:35 +00:00
parent 86fb9fdb20
commit 0a1fcce092
4 changed files with 60 additions and 16 deletions
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4
include/llvm/CodeGen/LiveIntervalAnalysis.h
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@@ -282,6 +282,10 @@ namespace llvm {
I = r2iMap_.insert(std::make_pair(reg, createInterval(reg))).first;
return *I->second;
}
/// dupInterval - Duplicate a live interval. The caller is responsible for
/// managing the allocated memory.
LiveInterval *dupInterval(LiveInterval *li);
/// addLiveRangeToEndOfBlock - Given a register and an instruction,
/// adds a live range from that instruction to the end of its MBB.