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Tweak comment and debug output.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134412 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-07-05 15:38:37 +00:00
parent dedd6ee135
commit 2b0f4abfbe
1 changed files with 3 additions and 2 deletions
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5
lib/CodeGen/RegAllocGreedy.cpp
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@ -958,7 +958,8 @@ void RAGreedy::splitAroundRegion(LiveInterval &VirtReg,
//
// ~ Interference after last use.
// |---o---o--o| Live-out on stack, late last use.
// =========____ Copy to stack after LSP, overlap MainIntv.
// ============ Copy to stack after LSP, overlap MainIntv.
// \_____ Stack interval is live-out.
//
if (!RegOut && Intf.first() > BI.LastUse.getBoundaryIndex()) {
assert(RegIn && "Stack-in, stack-out should already be handled");
@ -998,8 +999,8 @@ void RAGreedy::splitAroundRegion(LiveInterval &VirtReg,
// The interference is overlapping somewhere we wanted to use MainIntv. That
// means we need to create a local interval that can be allocated a
// different register.
DEBUG(dbgs() << ", creating local interval.\n");
unsigned LocalIntv = SE->openIntv();
DEBUG(dbgs() << ", creating local interval " << LocalIntv << ".\n");
// We may be creating copies directly between MainIntv and LocalIntv,
// bypassing the stack interval. When we do that, we should never use the