[llvm-branch-commits] [llvm-branch] r93371 - in /llvm/branches/Apple/Zoidberg: lib/Transforms/Scalar/InstructionCombining.cpp test/Transforms/InstCombine/fsub-fadd.ll

[Bill Wendling]

Author: void
Date: Wed Jan 13 17:26:26 2010
New Revision: 93371

URL: http://llvm.org/viewvc/llvm-project?rev=93371&view=rev
Log:
$ svn merge -c 93369 https://llvm.org/svn/llvm-project/llvm/trunk
--- Merging r93369 into '.':
A    test/Transforms/InstCombine/fsub-fadd.ll
U    lib/Transforms/Scalar/InstructionCombining.cpp


Added:
    llvm/branches/Apple/Zoidberg/test/Transforms/InstCombine/fsub-fadd.ll
      - copied unchanged from r93369, llvm/trunk/test/Transforms/InstCombine/fsub-fadd.ll
Modified:
    llvm/branches/Apple/Zoidberg/lib/Transforms/Scalar/InstructionCombining.cpp

Modified: llvm/branches/Apple/Zoidberg/lib/Transforms/Scalar/InstructionCombining.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/Apple/Zoidberg/lib/Transforms/Scalar/InstructionCombining.cpp?rev=93371&r1=93370&r2=93371&view=diff

==============================================================================
--- llvm/branches/Apple/Zoidberg/lib/Transforms/Scalar/InstructionCombining.cpp (original)
+++ llvm/branches/Apple/Zoidberg/lib/Transforms/Scalar/InstructionCombining.cpp Wed Jan 13 17:26:26 2010
@@ -2912,17 +2912,6 @@
   if (Value *V = dyn_castFNegVal(Op1))
     return BinaryOperator::CreateFAdd(Op0, V);
 
-  if (BinaryOperator *Op1I = dyn_cast<BinaryOperator>(Op1)) {
-    if (Op1I->getOpcode() == Instruction::FAdd) {
-      if (Op1I->getOperand(0) == Op0)              // X-(X+Y) == -Y
-        return BinaryOperator::CreateFNeg(Op1I->getOperand(1),
-                                          I.getName());
-      else if (Op1I->getOperand(1) == Op0)         // X-(Y+X) == -Y
-        return BinaryOperator::CreateFNeg(Op1I->getOperand(0),
-                                          I.getName());
-    }
-  }
-
   return 0;
 }