diff options
Diffstat (limited to 'llvm/lib/Target/ARM/ARMSubtarget.cpp')
| -rw-r--r-- | llvm/lib/Target/ARM/ARMSubtarget.cpp | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/llvm/lib/Target/ARM/ARMSubtarget.cpp b/llvm/lib/Target/ARM/ARMSubtarget.cpp index 5dfd5d722fb..1ba52d21fa7 100644 --- a/llvm/lib/Target/ARM/ARMSubtarget.cpp +++ b/llvm/lib/Target/ARM/ARMSubtarget.cpp @@ -25,8 +25,7 @@ ReserveR9("arm-reserve-r9", cl::Hidden, cl::desc("Reserve R9, making it unavailable as GPR")); static cl::opt<bool> -UseMOVT("arm-use-movt", - cl::init(true), cl::Hidden); +UseMOVT("arm-darwin-use-movt", cl::init(false), cl::Hidden); static cl::opt<bool> StrictAlign("arm-strict-align", cl::Hidden, @@ -45,7 +44,7 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS, , NoARM(false) , PostRAScheduler(false) , IsR9Reserved(ReserveR9) - , UseMovt(UseMOVT) + , UseMovt(false) , HasFP16(false) , HasD16(false) , HasHardwareDivide(false) @@ -147,8 +146,16 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS, if (isAAPCS_ABI()) stackAlignment = 8; - if (isTargetDarwin()) + if (!isTargetDarwin()) + UseMovt = hasV6T2Ops(); + else { IsR9Reserved = ReserveR9 | (ARMArchVersion < V6); + if (UseMOVT && hasV6T2Ops()) { + unsigned Maj, Min, Rev; + TargetTriple.getDarwinNumber(Maj, Min, Rev); + UseMovt = (Maj > 4 || Min > 2); + } + } if (!isThumb() || hasThumb2()) PostRAScheduler = true; |
