diff options
Diffstat (limited to 'lib/Target/ARM/ARMSubtarget.cpp')
-rw-r--r-- | lib/Target/ARM/ARMSubtarget.cpp | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/lib/Target/ARM/ARMSubtarget.cpp b/lib/Target/ARM/ARMSubtarget.cpp index cf1ee3f..5af95c3 100644 --- a/lib/Target/ARM/ARMSubtarget.cpp +++ b/lib/Target/ARM/ARMSubtarget.cpp @@ -27,11 +27,11 @@ UseNEONFP("arm-use-neon-fp", cl::init(false), cl::Hidden); ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS, - bool isThumb) + bool isT) : ARMArchVersion(V4T) , ARMFPUType(None) , UseNEONForSinglePrecisionFP(UseNEONFP) - , IsThumb(isThumb) + , IsThumb(isT) , ThumbMode(Thumb1) , PostRAScheduler(false) , IsR9Reserved(ReserveR9) @@ -98,9 +98,13 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS, if (isTargetDarwin()) IsR9Reserved = ReserveR9 | (ARMArchVersion < V6); + if (!isThumb() || hasThumb2()) + PostRAScheduler = true; + // Set CPU specific features. if (CPUString == "cortex-a8") { - PostRAScheduler = true; + // On Cortex-a8, it's faster to perform some single-precision FP + // operations with NEON instructions. if (UseNEONFP.getPosition() == 0) UseNEONForSinglePrecisionFP = true; } |