From 64ff3c349b0cb3bb68b55c94543a59c7f486a44a Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Sat, 17 Feb 2007 11:07:08 +0000 Subject: [PATCH] Allow LiveVariables to track liveness of more registers. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34377 91177308-0d34-0410-b5e6-96231b3b80d8 --- include/llvm/CodeGen/LiveVariables.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/include/llvm/CodeGen/LiveVariables.h b/include/llvm/CodeGen/LiveVariables.h index 6e7e23d495b..786a1fdc706 100644 --- a/include/llvm/CodeGen/LiveVariables.h +++ b/include/llvm/CodeGen/LiveVariables.h @@ -36,6 +36,7 @@ namespace llvm { class MRegisterInfo; +class BitVector; class LiveVariables : public MachineFunctionPass { public: @@ -108,11 +109,11 @@ private: /// std::vector VirtRegInfo; - /// AllocatablePhysicalRegisters - This vector keeps track of which registers - /// are actually register allocatable by the target machine. We can not track - /// liveness for values that are not in this set. + /// ReservedRegisters - This vector keeps track of which registers + /// are reserved register which are not allocatable by the target machine. + /// We can not track liveness for values that are in this set. /// - BitVector AllocatablePhysicalRegisters; + BitVector ReservedRegisters; private: // Intermediate data structures const MRegisterInfo *RegInfo;