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Adding debug output during coalescing.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@44154 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2007-11-15 02:06:30 +00:00
parent 87075caa18
commit 5b8318a1a4
1 changed files with 1 additions and 0 deletions
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lib/CodeGen/RegAllocLinearScan.cpp
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@ -233,6 +233,7 @@ unsigned RALinScan::attemptTrivialCoalescing(LiveInterval &cur, unsigned Reg) {
// Try to coalesce.
if (!li_->conflictsWithPhysRegDef(cur, *vrm_, SrcReg)) {
DOUT << "Coalescing: " << cur << " -> " << mri_->getName(SrcReg) << '\n';
vrm_->clearVirt(cur.reg);
vrm_->assignVirt2Phys(cur.reg, SrcReg);
++NumCoalesce;