From 0855dee564f80160abf95497475306af38ab7f84 Mon Sep 17 00:00:00 2001 From: David Goodwin Date: Tue, 10 Nov 2009 00:15:47 +0000 Subject: Allow targets to specify register classes whose member registers should not be renamed to break anti-dependencies. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86628 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/AggressiveAntiDepBreaker.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'lib/CodeGen/AggressiveAntiDepBreaker.h') diff --git a/lib/CodeGen/AggressiveAntiDepBreaker.h b/lib/CodeGen/AggressiveAntiDepBreaker.h index c5121682bd..fb5b869fcb 100644 --- a/lib/CodeGen/AggressiveAntiDepBreaker.h +++ b/lib/CodeGen/AggressiveAntiDepBreaker.h @@ -23,6 +23,7 @@ #include "llvm/CodeGen/MachineFunction.h" #include "llvm/CodeGen/MachineRegisterInfo.h" #include "llvm/CodeGen/ScheduleDAG.h" +#include "llvm/Target/TargetSubtarget.h" #include "llvm/Target/TargetRegisterInfo.h" #include "llvm/ADT/BitVector.h" #include "llvm/ADT/SmallSet.h" @@ -112,7 +113,7 @@ namespace llvm { /// AllocatableSet - The set of allocatable registers. /// We'll be ignoring anti-dependencies on non-allocatable registers, /// because they may not be safe to break. - const BitVector AllocatableSet; + BitVector AllocatableSet; /// State - The state used to identify and rename anti-dependence /// registers. @@ -124,7 +125,8 @@ namespace llvm { AggressiveAntiDepState *SavedState; public: - AggressiveAntiDepBreaker(MachineFunction& MFi); + AggressiveAntiDepBreaker(MachineFunction& MFi, + TargetSubtarget::ExcludedRCVector& ExcludedRCs); ~AggressiveAntiDepBreaker(); /// GetMaxTrials - As anti-dependencies are broken, additional -- cgit v1.2.3