commit 52188501f6f0991a0e7f4abf4f5d2ee6ecd61c78
author Chris Lattner <sabre@nondot.org> Wed Jan 16 17:59:31 2008 +0000
committer Chris Lattner <sabre@nondot.org> Wed Jan 16 17:59:31 2008 +0000
tree 5602c24ae805e0a2dc268c31db85ba144136c11c
parent 2d700ed2bacfde5fca2589511290744ccc23807e

Fix a ppc long double regression I introduced yesterday due to a
simplification.  This fixes automotive-basicmath on PPC.

llvm-svn: 46072

llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp

diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 67da854..34825be 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -1753,6 +1753,7 @@
   case ISD::FP_EXTEND:
     assert(MVT::isFloatingPoint(VT) &&
            MVT::isFloatingPoint(Operand.getValueType()) && "Invalid FP cast!");
+    if (Operand.getValueType() == VT) return Operand;  // noop conversion.
     break;
   case ISD::SIGN_EXTEND:
     assert(MVT::isInteger(VT) && MVT::isInteger(Operand.getValueType()) &&