diff options
| -rw-r--r-- | lib/Target/ARM/ARM.td | 2 | ||||
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 2 | ||||
| -rw-r--r-- | lib/Target/ARM/ARMSubtarget.cpp | 1 | ||||
| -rw-r--r-- | lib/Target/ARM/ARMSubtarget.h | 6 |
4 files changed, 10 insertions, 1 deletions
diff --git a/lib/Target/ARM/ARM.td b/lib/Target/ARM/ARM.td index 70338612d9..bbb1dbdc9a 100644 --- a/lib/Target/ARM/ARM.td +++ b/lib/Target/ARM/ARM.td @@ -40,6 +40,8 @@ def FeatureNEON : SubtargetFeature<"neon", "ARMFPUType", "NEON", "Enable NEON instructions">; def FeatureThumb2 : SubtargetFeature<"thumb2", "ThumbMode", "Thumb2", "Enable Thumb2 instructions">; +def FeatureFP16 : SubtargetFeature<"fp16", "HasFP16", "true", + "Enable half-precision floating point">; //===----------------------------------------------------------------------===// // ARM Processors supported. diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index d37a36eb7b..ac210685c0 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -436,7 +436,7 @@ ARMTargetLowering::ARMTargetLowering(TargetMachine &TM) setOperationAction(ISD::FP_TO_SINT, MVT::i32, Custom); } // Special handling for half-precision FP. - if (Subtarget->hasVFP3()) { + if (Subtarget->hasVFP3() && Subtarget->hasFP16()) { setOperationAction(ISD::FP16_TO_FP32, MVT::f32, Custom); setOperationAction(ISD::FP32_TO_FP16, MVT::i32, Custom); } diff --git a/lib/Target/ARM/ARMSubtarget.cpp b/lib/Target/ARM/ARMSubtarget.cpp index 622034bd2d..2dad7f1106 100644 --- a/lib/Target/ARM/ARMSubtarget.cpp +++ b/lib/Target/ARM/ARMSubtarget.cpp @@ -41,6 +41,7 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS, , PostRAScheduler(false) , IsR9Reserved(ReserveR9) , UseMovt(UseMOVT) + , HasFP16(false) , stackAlignment(4) , CPUString("generic") , TargetType(isELF) // Default to ELF unless otherwise specified. diff --git a/lib/Target/ARM/ARMSubtarget.h b/lib/Target/ARM/ARMSubtarget.h index 4d36036b18..2dc81a4d6d 100644 --- a/lib/Target/ARM/ARMSubtarget.h +++ b/lib/Target/ARM/ARMSubtarget.h @@ -66,6 +66,10 @@ protected: /// imms (including global addresses). bool UseMovt; + /// HasFP16 - True if subtarget supports half-precision FP (We support VFP+HF + /// only so far) + bool HasFP16; + /// stackAlignment - The minimum alignment known to hold of the stack frame on /// entry to the function and which must be maintained by every function. unsigned stackAlignment; @@ -116,6 +120,8 @@ protected: bool useNEONForSinglePrecisionFP() const { return hasNEON() && UseNEONForSinglePrecisionFP; } + bool hasFP16() const { return HasFP16; } + bool isTargetDarwin() const { return TargetType == isDarwin; } bool isTargetELF() const { return TargetType == isELF; } |