[llvm-commits] [llvm-gcc-4.2] r57244 - /llvm-gcc-4.2/trunk/gcc/config/alpha/llvm-alpha.cpp

[Andrew Lenharth]

Author: alenhar2
Date: Tue Oct  7 09:41:03 2008
New Revision: 57244

URL: http://llvm.org/viewvc/llvm-project?rev=57244&view=rev
Log:
expand to llmv IR

Modified:
    llvm-gcc-4.2/trunk/gcc/config/alpha/llvm-alpha.cpp

Modified: llvm-gcc-4.2/trunk/gcc/config/alpha/llvm-alpha.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/config/alpha/llvm-alpha.cpp?rev=57244&r1=57243&r2=57244&view=diff

==============================================================================
--- llvm-gcc-4.2/trunk/gcc/config/alpha/llvm-alpha.cpp (original)
+++ llvm-gcc-4.2/trunk/gcc/config/alpha/llvm-alpha.cpp Tue Oct  7 09:41:03 2008
@@ -103,13 +103,13 @@
                                       std::vector<Value*> &Ops) {
   switch (FnCode) {
   case ALPHA_BUILTIN_UMULH: {
-    Function *f =
-      Intrinsic::getDeclaration(TheModule, Intrinsic::alpha_umulh);
     Value *Arg0 = Ops[0];
     Value *Arg1 = Ops[1];
-    Value *CallOps[2] = { Arg0, Arg1};
-    Result = Builder.CreateCall(f, CallOps, CallOps+2, "tmp");
-    Result = Builder.CreateBitCast(Result, ResultType, "tmp");
+    Arg0 = Builder.CreateZExt(Arg0, IntegerType::get(128));
+    Arg1 = Builder.CreateZExt(Arg1, IntegerType::get(128));
+    Result = Builder.CreateMul(Arg0, Arg1);
+    Result = Builder.CreateLShr(Result, ConstantInt::get(Type::Int64Ty, 64));
+    Result = Builder.CreateTrunc(Result, Type::Int64Ty);
     return true;
   }
   default: break;