X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FTarget%2FSparc%2FSparcSubtarget.cpp;h=eea0c8c33c6ab0122d82a450d61e5c56e41d7ef1;hb=aa5b9c0f6f3a99f955fe0ded13d61d7eb4e1a0b5;hp=e38fb02c9a89a2ed684ec994c992cad71fd81988;hpb=58f58c97f0a4bbadb81a198c340f5264344d41e1;p=oota-llvm.git

diff --git a/lib/Target/Sparc/SparcSubtarget.cpp b/lib/Target/Sparc/SparcSubtarget.cpp
index e38fb02c9a8..eea0c8c33c6 100644
--- a/lib/Target/Sparc/SparcSubtarget.cpp
+++ b/lib/Target/Sparc/SparcSubtarget.cpp
@@ -26,20 +26,44 @@ using namespace llvm;
 
 void SparcSubtarget::anchor() { }
 
-SparcSubtarget::SparcSubtarget(const std::string &TT, const std::string &CPU,
-                               const std::string &FS,  bool is64Bit) :
-  SparcGenSubtargetInfo(TT, CPU, FS),
-  IsV9(false),
-  V8DeprecatedInsts(false),
-  IsVIS(false),
-  Is64Bit(is64Bit),
-  HasHardQuad(false),
-  UsePopc(false) {
+static std::string computeDataLayout(const SparcSubtarget &ST) {
+  // Sparc is big endian.
+  std::string Ret = "E-m:e";
+
+  // Some ABIs have 32bit pointers.
+  if (!ST.is64Bit())
+    Ret += "-p:32:32";
+
+  // Alignments for 64 bit integers.
+  Ret += "-i64:64";
+
+  // On SparcV9 128 floats are aligned to 128 bits, on others only to 64.
+  // On SparcV9 registers can hold 64 or 32 bits, on others only 32.
+  if (ST.is64Bit())
+    Ret += "-n32:64";
+  else
+    Ret += "-f128:64-n32";
+
+  if (ST.is64Bit())
+    Ret += "-S128";
+  else
+    Ret += "-S64";
+
+  return Ret;
+}
+
+SparcSubtarget &SparcSubtarget::initializeSubtargetDependencies(StringRef CPU,
+                                                                StringRef FS) {
+  IsV9 = false;
+  V8DeprecatedInsts = false;
+  IsVIS = false;
+  HasHardQuad = false;
+  UsePopc = false;
 
   // Determine default and user specified characteristics
   std::string CPUName = CPU;
   if (CPUName.empty())
-    CPUName = (is64Bit) ? "v9" : "v8";
+    CPUName = (Is64Bit) ? "v9" : "v8";
 
   // Parse features string.
   ParseSubtargetFeatures(CPUName, FS);
@@ -47,8 +71,16 @@ SparcSubtarget::SparcSubtarget(const std::string &TT, const std::string &CPU,
   // Popc is a v9-only instruction.
   if (!IsV9)
     UsePopc = false;
+
+  return *this;
 }
 
+SparcSubtarget::SparcSubtarget(const std::string &TT, const std::string &CPU,
+                               const std::string &FS, TargetMachine &TM,
+                               bool is64Bit)
+    : SparcGenSubtargetInfo(TT, CPU, FS), Is64Bit(is64Bit),
+      DL(computeDataLayout(initializeSubtargetDependencies(CPU, FS))),
+      InstrInfo(*this), TLInfo(TM), TSInfo(DL), FrameLowering(*this) {}
 
 int SparcSubtarget::getAdjustedFrameSize(int frameSize) const {