[llvm-commits] CVS: llvm/lib/VMCore/Function.cpp IntrinsicLowering.cpp Verifier.cpp

[Chris Lattner]

Changes in directory llvm/lib/VMCore:

Function.cpp updated: 1.63 -> 1.64
IntrinsicLowering.cpp updated: 1.6 -> 1.7
Verifier.cpp updated: 1.79 -> 1.80

---
Log message:

Add support for the llvm.memmove intrinsic

Patch graciously contributed by Reid Spencer!


---
Diffs of the changes:  (+15 -0)

Index: llvm/lib/VMCore/Function.cpp
diff -u llvm/lib/VMCore/Function.cpp:1.63 llvm/lib/VMCore/Function.cpp:1.64
--- llvm/lib/VMCore/Function.cpp:1.63	Thu Feb 12 11:01:08 2004
+++ llvm/lib/VMCore/Function.cpp	Thu Feb 12 12:11:20 2004
@@ -219,6 +219,7 @@
     break;
   case 'm':
     if (getName() == "llvm.memcpy")  return Intrinsic::memcpy;
+    if (getName() == "llvm.memmove")  return Intrinsic::memmove;
     break;
   case 's':
     if (getName() == "llvm.setjmp")     return Intrinsic::setjmp;


Index: llvm/lib/VMCore/IntrinsicLowering.cpp
diff -u llvm/lib/VMCore/IntrinsicLowering.cpp:1.6 llvm/lib/VMCore/IntrinsicLowering.cpp:1.7
--- llvm/lib/VMCore/IntrinsicLowering.cpp:1.6	Thu Feb 12 11:01:09 2004
+++ llvm/lib/VMCore/IntrinsicLowering.cpp	Thu Feb 12 12:11:20 2004
@@ -71,6 +71,19 @@
                  CI->getName(), CI);
     break;
   }
+  case Intrinsic::memmove: {
+    // The memmove intrinsic take an extra alignment argument that the memcpy
+    // libc function does not.
+    const FunctionType *CFT = Callee->getFunctionType();
+    FunctionType *FT =
+      FunctionType::get(*CFT->param_begin(), 
+           std::vector<const Type*>(CFT->param_begin(), CFT->param_end()-1),
+                        false);
+    Function *MemMove = M->getOrInsertFunction("memmove", FT);
+    new CallInst(MemMove, std::vector<Value*>(CI->op_begin()+1, CI->op_end()-1),
+                 CI->getName(), CI);
+    break;
+  }
   }
 
   assert(CI->use_empty() &&


Index: llvm/lib/VMCore/Verifier.cpp
diff -u llvm/lib/VMCore/Verifier.cpp:1.79 llvm/lib/VMCore/Verifier.cpp:1.80
--- llvm/lib/VMCore/Verifier.cpp:1.79	Thu Feb 12 11:01:09 2004
+++ llvm/lib/VMCore/Verifier.cpp	Thu Feb 12 12:11:20 2004
@@ -563,6 +563,7 @@
   case Intrinsic::dbg_declare:     NumArgs = 1; break;
 
   case Intrinsic::memcpy:          NumArgs = 4; break;
+  case Intrinsic::memmove:         NumArgs = 4; break;
  
   case Intrinsic::alpha_ctlz:      NumArgs = 1; break;
   case Intrinsic::alpha_cttz:      NumArgs = 1; break;