X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FVMCore%2FFunction.cpp;h=a859a2b04a259ba45c0d7bf3b8750b7851bcda70;hb=02a3be020a6b4eedb4b489959997d23a22cdf22e;hp=3324565654b0f1bd32f61779874967e7ec5e4d9a;hpb=4ad02e726d9b634372b037d4b352d8b63bb9e849;p=oota-llvm.git

diff --git a/lib/VMCore/Function.cpp b/lib/VMCore/Function.cpp
index 3324565654b..a859a2b04a2 100644
--- a/lib/VMCore/Function.cpp
+++ b/lib/VMCore/Function.cpp
@@ -8,6 +8,7 @@
 #include "llvm/Module.h"
 #include "llvm/DerivedTypes.h"
 #include "llvm/iOther.h"
+#include "llvm/Intrinsics.h"
 #include "Support/LeakDetector.h"
 #include "SymbolTableListTraitsImpl.h"
 
@@ -103,8 +104,6 @@ Function::Function(const FunctionType *Ty, LinkageTypes Linkage,
 Function::~Function() {
   dropAllReferences();    // After this it is safe to delete instructions.
 
-  BasicBlocks.clear();    // Delete all basic blocks...
-
   // Delete all of the method arguments and unlink from symbol table...
   ArgumentList.clear();
   ArgumentList.setParent(0);
@@ -148,8 +147,75 @@ const Type *Function::getReturnType() const {
 void Function::dropAllReferences() {
   for (iterator I = begin(), E = end(); I != E; ++I)
     I->dropAllReferences();
+  BasicBlocks.clear();    // Delete all basic blocks...
 }
 
+/// getIntrinsicID - This method returns the ID number of the specified
+/// function, or LLVMIntrinsic::not_intrinsic if the function is not an
+/// instrinsic, or if the pointer is null.  This value is always defined to be
+/// zero to allow easy checking for whether a function is intrinsic or not.  The
+/// particular intrinsic functions which correspond to this value are defined in
+/// llvm/Intrinsics.h.
+///
+unsigned Function::getIntrinsicID() const {
+  if (getName().size() < 5 || getName()[4] != '.' || getName()[0] != 'l' ||
+      getName()[1] != 'l' || getName()[2] != 'v' || getName()[3] != 'm')
+    return 0;  // All intrinsics start with 'llvm.'
+
+  assert(getName().size() != 5 && "'llvm.' is an invalid intrinsic name!");
+  
+  // a table of all Alpha intrinsic functions
+  struct {
+   std::string name;  // The name of the intrinsic 
+   unsigned id;       // Its ID number
+  } alpha_intrinsics[] = {
+     { "llvm.alpha.ctlz",      LLVMIntrinsic::alpha_ctlz },
+     { "llvm.alpha.cttz",      LLVMIntrinsic::alpha_cttz },
+     { "llvm.alpha.ctpop",     LLVMIntrinsic::alpha_ctpop },
+     { "llvm.alpha.umulh",     LLVMIntrinsic::alpha_umulh },
+     { "llvm.alpha.vecop",     LLVMIntrinsic::alpha_vecop },
+     { "llvm.alpha.pup",       LLVMIntrinsic::alpha_pup },
+     { "llvm.alpha.bytezap",   LLVMIntrinsic::alpha_bytezap },
+     { "llvm.alpha.bytemanip", LLVMIntrinsic::alpha_bytemanip },
+     { "llvm.alpha.dfp_bop",   LLVMIntrinsic::alpha_dfpbop }, 
+     { "llvm.alpha.dfp_uop",   LLVMIntrinsic::alpha_dfpuop },
+     { "llvm.alpha.unordered", LLVMIntrinsic::alpha_unordered },
+     { "llvm.alpha.uqtodfp",   LLVMIntrinsic::alpha_uqtodfp },
+     { "llvm.alpha.uqtosfp",   LLVMIntrinsic::alpha_uqtosfp },
+     { "llvm.alpha.dfptosq",   LLVMIntrinsic::alpha_dfptosq },
+     { "llvm.alpha.sfptosq",   LLVMIntrinsic::alpha_sfptosq },
+  };
+  const unsigned num_alpha_intrinsics = 
+                 sizeof(alpha_intrinsics) / sizeof(*alpha_intrinsics);
+
+  switch (getName()[5]) {
+  case 'a':
+    if (getName().size() > 11 &&
+        std::string(getName().begin()+4, getName().begin()+11) == ".alpha.")
+      for (unsigned i = 0; i < num_alpha_intrinsics; ++i)
+        if (getName() == alpha_intrinsics[i].name)
+          return alpha_intrinsics[i].id;
+    break;
+  case 'l':
+    if (getName() == "llvm.longjmp")  return LLVMIntrinsic::longjmp;
+    break;
+  case 's':
+    if (getName() == "llvm.setjmp")     return LLVMIntrinsic::setjmp;
+    if (getName() == "llvm.sigsetjmp")  return LLVMIntrinsic::sigsetjmp;
+    if (getName() == "llvm.siglongjmp") return LLVMIntrinsic::siglongjmp;
+    break;
+  case 'v':
+    if (getName() == "llvm.va_copy")  return LLVMIntrinsic::va_copy;
+    if (getName() == "llvm.va_end")   return LLVMIntrinsic::va_end;
+    if (getName() == "llvm.va_start") return LLVMIntrinsic::va_start;
+    break;
+  }
+  // The "llvm." namespace is reserved!
+  assert(0 && "Unknown LLVM intrinsic function!");
+  return 0;
+}
+
+
 //===----------------------------------------------------------------------===//
 // GlobalVariable Implementation
 //===----------------------------------------------------------------------===//