add support for the sparcv9-*-* target triple to turn on

64-bit sparc codegen.  Patch by Nathan Keynes!

llvm-svn: 95293

1 files changed, 11 insertions, 20 deletions

diff --git a/llvm/lib/Target/Sparc/SparcSubtarget.cpp b/llvm/lib/Target/Sparc/SparcSubtarget.cpp
index 8a88cc0..ce11af1 100644
--- a/llvm/lib/Target/Sparc/SparcSubtarget.cpp
+++ b/llvm/lib/Target/Sparc/SparcSubtarget.cpp
@@ -15,29 +15,20 @@
 #include "SparcGenSubtarget.inc"
 using namespace llvm;
 
-// FIXME: temporary.
-#include "llvm/Support/CommandLine.h"
-namespace {
-  cl::opt<bool> EnableV9("enable-sparc-v9-insts", cl::Hidden,
-                          cl::desc("Enable V9 instructions in the V8 target"));
-}
-
-SparcSubtarget::SparcSubtarget(const std::string &TT, const std::string &FS) {
-  // Set the default features.
-  IsV9 = false;
-  V8DeprecatedInsts = false;
-  IsVIS = false;
+SparcSubtarget::SparcSubtarget(const std::string &TT, const std::string &FS, 
+                               bool is64Bit) :
+  IsV9(false),
+  V8DeprecatedInsts(false),
+  IsVIS(false),
+  Is64Bit(is64Bit) {
   
   // Determine default and user specified characteristics
-  std::string CPU = "generic";
+  const char *CPU = "v8";
+  if (is64Bit) {
+    CPU = "v9";
+    IsV9 = true;
+  }
 
-  // FIXME: autodetect host here!
-  CPU = "v9";   // What is a good way to detect V9?
-  
   // Parse features string.
   ParseSubtargetFeatures(FS, CPU);
-
-  // Unless explicitly enabled, disable the V9 instructions.
-  if (!EnableV9)
-    IsV9 = false;
 }