From a9a9c95f6789946d5df34185725fc28cebad8b16 Mon Sep 17 00:00:00 2001 From: Jim Grosbach Date: Tue, 29 Sep 2009 20:11:10 +0000 Subject: [PATCH] Additional check for regno==0 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83103 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/RegisterScavenging.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/CodeGen/RegisterScavenging.cpp b/lib/CodeGen/RegisterScavenging.cpp index ada7b4665d3..b99f88f94da 100644 --- a/lib/CodeGen/RegisterScavenging.cpp +++ b/lib/CodeGen/RegisterScavenging.cpp @@ -280,7 +280,7 @@ unsigned RegScavenger::scavengeRegister(const TargetRegisterClass *RC, // Exclude all the registers being used by the instruction. for (unsigned i = 0, e = I->getNumOperands(); i != e; ++i) { MachineOperand &MO = I->getOperand(i); - if (MO.isReg() && !TRI->isVirtualRegister(MO.getReg())) + if (MO.isReg() && MO.getReg() != 0 && !TRI->isVirtualRegister(MO.getReg())) Candidates.reset(MO.getReg()); } -- 2.11.0