From 2f45bf31c521a89dd944adcf575ddb5059959f51 Mon Sep 17 00:00:00 2001 From: Evan Cheng Date: Tue, 17 Apr 2007 20:23:34 +0000 Subject: Change getAllocatableSet() so it returns allocatable registers for a specific register class. llvm-svn: 36215 --- llvm/lib/Target/MRegisterInfo.cpp | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'llvm/lib') diff --git a/llvm/lib/Target/MRegisterInfo.cpp b/llvm/lib/Target/MRegisterInfo.cpp index 08039208fe8..ae9f20372fc 100644 --- a/llvm/lib/Target/MRegisterInfo.cpp +++ b/llvm/lib/Target/MRegisterInfo.cpp @@ -34,13 +34,16 @@ MRegisterInfo::MRegisterInfo(const TargetRegisterDesc *D, unsigned NR, MRegisterInfo::~MRegisterInfo() {} -BitVector MRegisterInfo::getAllocatableSet(MachineFunction &MF) const { +BitVector MRegisterInfo::getAllocatableSet(MachineFunction &MF, + const TargetRegisterClass *RC) const { BitVector Allocatable(NumRegs); for (MRegisterInfo::regclass_iterator I = regclass_begin(), E = regclass_end(); I != E; ++I) { - const TargetRegisterClass *RC = *I; - for (TargetRegisterClass::iterator I = RC->allocation_order_begin(MF), - E = RC->allocation_order_end(MF); I != E; ++I) + const TargetRegisterClass *TRC = *I; + if (RC && TRC != RC) + continue; + for (TargetRegisterClass::iterator I = TRC->allocation_order_begin(MF), + E = TRC->allocation_order_end(MF); I != E; ++I) Allocatable.set(*I); } return Allocatable; -- cgit v1.2.3