Use the "isCompare" machine instruction attribute instead of calling the

[oota-llvm.git] / lib / Target / ARM / ARMSubtarget.cpp

diff --git a/lib/Target/ARM/ARMSubtarget.cpp b/lib/Target/ARM/ARMSubtarget.cpp
index 622034bd2d99145cee9279b1e78ec6e63cf115da..10fd257055fb50ec2ec65abfa9dabaa52cc96fd6 100644 (file)
--- a/lib/Target/ARM/ARMSubtarget.cpp
+++ b/lib/Target/ARM/ARMSubtarget.cpp
@@ -22,10 +22,6 @@ using namespace llvm;
 static cl::opt<bool>
 ReserveR9("arm-reserve-r9", cl::Hidden,
           cl::desc("Reserve R9, making it unavailable as GPR"));
-static cl::opt<bool>
-UseNEONFP("arm-use-neon-fp",
-          cl::desc("Use NEON for single-precision FP"),
-          cl::init(false), cl::Hidden);
 
 static cl::opt<bool>
 UseMOVT("arm-use-movt",
@@ -35,12 +31,16 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS,
                            bool isT)
   : ARMArchVersion(V4)
   , ARMFPUType(None)
-  , UseNEONForSinglePrecisionFP(UseNEONFP)
+  , UseNEONForSinglePrecisionFP(false)
+  , SlowVMLx(false)
   , IsThumb(isT)
   , ThumbMode(Thumb1)
   , PostRAScheduler(false)
   , IsR9Reserved(ReserveR9)
   , UseMovt(UseMOVT)
+  , HasFP16(false)
+  , HasHardwareDivide(false)
+  , HasT2ExtractPack(false)
   , stackAlignment(4)
   , CPUString("generic")
   , TargetType(isELF) // Default to ELF unless otherwise specified.
@@ -75,6 +75,8 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS,
     unsigned SubVer = TT[Idx];
     if (SubVer >= '7' && SubVer <= '9') {
       ARMArchVersion = V7A;
+      if (Len >= Idx+2 && TT[Idx+1] == 'm')
+        ARMArchVersion = V7M;
     } else if (SubVer == '6') {
       ARMArchVersion = V6;
       if (Len >= Idx+3 && TT[Idx+1] == 't' && TT[Idx+2] == '2')
@@ -114,19 +116,12 @@ ARMSubtarget::ARMSubtarget(const std::string &TT, const std::string &FS,
 
   if (!isThumb() || hasThumb2())
     PostRAScheduler = true;
-
-  // Set CPU specific features.
-  if (CPUString == "cortex-a8") {
-    // On Cortex-a8, it's faster to perform some single-precision FP
-    // operations with NEON instructions.
-    if (UseNEONFP.getPosition() == 0)
-      UseNEONForSinglePrecisionFP = true;
-  }
 }
 
 /// GVIsIndirectSymbol - true if the GV will be accessed via an indirect symbol.
 bool
-ARMSubtarget::GVIsIndirectSymbol(GlobalValue *GV, Reloc::Model RelocM) const {
+ARMSubtarget::GVIsIndirectSymbol(const GlobalValue *GV,
+                                 Reloc::Model RelocM) const {
   if (RelocM == Reloc::Static)
     return false;