From 55c64358d1c04990cd5f50785d3e3b27447dac21 Mon Sep 17 00:00:00 2001 From: Owen Anderson Date: Fri, 25 Jul 2008 21:08:41 +0000 Subject: [PATCH] Remove live interval entries for an interval if we're eliminating its only VN. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54062 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/StrongPHIElimination.cpp | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/lib/CodeGen/StrongPHIElimination.cpp b/lib/CodeGen/StrongPHIElimination.cpp index a2bb8185111..9a9fba550b8 100644 --- a/lib/CodeGen/StrongPHIElimination.cpp +++ b/lib/CodeGen/StrongPHIElimination.cpp @@ -794,7 +794,12 @@ void StrongPHIElimination::mergeLiveIntervals(unsigned primary, LI.getVNInfoAllocator()); NewVN->hasPHIKill = true; LiveRange NewRange(RangeMergingIn->start, RangeMergingIn->end, NewVN); - RHS.removeRange(RangeMergingIn->start, RangeMergingIn->end, true); + + if (RHS.containsOneValue()) + LI.removeInterval(RHS.reg); + else + RHS.removeRange(RangeMergingIn->start, RangeMergingIn->end, true); + LHS.addRange(NewRange); } -- 2.34.1