[x86] Revert my over-eager commit in r217332.

[oota-llvm.git] / lib / Target / NVPTX / NVPTXSubtarget.cpp

diff --git a/lib/Target/NVPTX/NVPTXSubtarget.cpp b/lib/Target/NVPTX/NVPTXSubtarget.cpp
index c4d0d6e4193dab9513dc2125262d7d98db353d32..3d52532310ff23688f159a65fbe2bff4a75b8fd2 100644 (file)
--- a/lib/Target/NVPTX/NVPTXSubtarget.cpp
+++ b/lib/Target/NVPTX/NVPTXSubtarget.cpp
@@ -12,18 +12,55 @@
 //===----------------------------------------------------------------------===//
 
 #include "NVPTXSubtarget.h"
+
+using namespace llvm;
+
+#define DEBUG_TYPE "nvptx-subtarget"
+
 #define GET_SUBTARGETINFO_ENUM
 #define GET_SUBTARGETINFO_TARGET_DESC
 #define GET_SUBTARGETINFO_CTOR
 #include "NVPTXGenSubtargetInfo.inc"
 
-using namespace llvm;
+// Pin the vtable to this file.
+void NVPTXSubtarget::anchor() {}
+
+static std::string computeDataLayout(bool is64Bit) {
+  std::string Ret = "e";
+
+  if (!is64Bit)
+    Ret += "-p:32:32";
 
+  Ret += "-i64:64-v16:16-v32:32-n16:32:64";
+
+  return Ret;
+}
+
+NVPTXSubtarget &NVPTXSubtarget::initializeSubtargetDependencies(StringRef CPU,
+                                                                StringRef FS) {
+    // Provide the default CPU if we don't have one.
+  if (CPU.empty() && FS.size())
+    llvm_unreachable("we are not using FeatureStr");
+  TargetName = CPU.empty() ? "sm_20" : CPU;
+
+  ParseSubtargetFeatures(TargetName, FS);
+
+  // Set default to PTX 3.2 (CUDA 5.5)
+  if (PTXVersion == 0) {
+    PTXVersion = 32;
+  }
+
+  return *this;
+}
 
 NVPTXSubtarget::NVPTXSubtarget(const std::string &TT, const std::string &CPU,
-                               const std::string &FS, bool is64Bit)
+                               const std::string &FS, const TargetMachine &TM,
+                               bool is64Bit)
     : NVPTXGenSubtargetInfo(TT, CPU, FS), Is64Bit(is64Bit), PTXVersion(0),
-      SmVersion(20) {
+      SmVersion(20), DL(computeDataLayout(is64Bit)),
+      InstrInfo(initializeSubtargetDependencies(CPU, FS)),
+      TLInfo((const NVPTXTargetMachine &)TM), TSInfo(&DL),
+      FrameLowering(*this) {
 
   Triple T(TT);
 
@@ -31,26 +68,4 @@ NVPTXSubtarget::NVPTXSubtarget(const std::string &TT, const std::string &CPU,
     drvInterface = NVPTX::NVCL;
   else
     drvInterface = NVPTX::CUDA;
-
-  // Provide the default CPU if none
-  std::string defCPU = "sm_20";
-
-  ParseSubtargetFeatures((CPU.empty() ? defCPU : CPU), FS);
-
-  // Get the TargetName from the FS if available
-  if (FS.empty() && CPU.empty())
-    TargetName = defCPU;
-  else if (!CPU.empty())
-    TargetName = CPU;
-  else
-    llvm_unreachable("we are not using FeatureStr");
-
-  // We default to PTX 3.1, but we cannot just default to it in the initializer
-  // since the attribute parser checks if the given option is >= the default.
-  // So if we set ptx31 as the default, the ptx30 attribute would never match.
-  // Instead, we use 0 as the default and manually set 31 if the default is
-  // used.
-  if (PTXVersion == 0) {
-    PTXVersion = 31;
-  }
 }