From 1015ba7018c87f48cc7bb45a564eb4a27241e76a Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Fri, 21 May 2010 20:53:24 +0000 Subject: - Change MachineInstr::findRegisterDefOperandIdx so it can also look for defs that are aliases of the specified register. - Rename modifiesRegister to definesRegister since it's looking a def of the specific register or one of its super-registers. It's not looking for def of a sub-register or alias that could change the specified register. - Added modifiesRegister to look for defs of aliases. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104377 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/PostRASchedulerList.cpp | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'lib/CodeGen/PostRASchedulerList.cpp') diff --git a/lib/CodeGen/PostRASchedulerList.cpp b/lib/CodeGen/PostRASchedulerList.cpp index 12bc645a6f..9714ea653b 100644 --- a/lib/CodeGen/PostRASchedulerList.cpp +++ b/lib/CodeGen/PostRASchedulerList.cpp @@ -197,13 +197,13 @@ static bool isSchedulingBoundary(const MachineInstr *MI, if (MI->getDesc().isTerminator() || MI->isLabel()) return true; - // Don't attempt to schedule around any instruction that modifies + // Don't attempt to schedule around any instruction that defines // a stack-oriented pointer, as it's unlikely to be profitable. This // saves compile time, because it doesn't require every single // stack slot reference to depend on the instruction that does the // modification. const TargetLowering &TLI = *MF.getTarget().getTargetLowering(); - if (MI->modifiesRegister(TLI.getStackPointerRegisterToSaveRestore())) + if (MI->definesRegister(TLI.getStackPointerRegisterToSaveRestore())) return true; return false; -- cgit v1.2.3-70-g09d2