diff options
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 0d0a004c28..f05041b41e 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -40,12 +40,18 @@ #include "llvm/MC/MCSectionMachO.h" #include "llvm/Target/TargetOptions.h" #include "llvm/ADT/VectorExtras.h" +#include "llvm/Support/CommandLine.h" #include "llvm/Support/ErrorHandling.h" #include "llvm/Support/MathExtras.h" #include "llvm/Support/raw_ostream.h" #include <sstream> using namespace llvm; +static cl::opt<bool> +aggressiveV7IfConvert("arm-aggressive-v7-ifcvt", cl::Hidden, + cl::desc("Enable more liberal if-converstion for v7"), + cl::init(false)); + static bool CC_ARM_APCS_Custom_f64(unsigned &ValNo, EVT &ValVT, EVT &LocVT, CCValAssign::LocInfo &LocInfo, ISD::ArgFlagsTy &ArgFlags, @@ -456,6 +462,9 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM) // Generic (and overly aggressive) if-conversion limits. setIfCvtBlockSizeLimit(10); setIfCvtDupBlockSizeLimit(2); + } else if (aggressiveV7IfConvert && Subtarget->hasV7Ops()) { + setIfCvtBlockSizeLimit(3); + setIfCvtDupBlockSizeLimit(1); } else if (Subtarget->hasV6Ops()) { setIfCvtBlockSizeLimit(2); setIfCvtDupBlockSizeLimit(1); |