[llvm-commits] [llvm] r123486 - /llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp

[Ted Kremenek]

Author: kremenek
Date: Fri Jan 14 16:34:13 2011
New Revision: 123486

URL: http://llvm.org/viewvc/llvm-project?rev=123486&view=rev
Log:
'HiReg' is written but never read.  Nuke its
declaration and its assignments.

Found by clang static analyzer.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp?rev=123486&r1=123485&r2=123486&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelDAGToDAG.cpp Fri Jan 14 16:34:13 2011
@@ -1607,13 +1607,13 @@
     SDValue N0 = Node->getOperand(0);
     SDValue N1 = Node->getOperand(1);
     
-    unsigned LoReg, HiReg;
+    unsigned LoReg;
     switch (NVT.getSimpleVT().SimpleTy) {
     default: llvm_unreachable("Unsupported VT!");
-    case MVT::i8:  LoReg = X86::AL;  HiReg = X86::AH;  Opc = X86::MUL8r; break;
-    case MVT::i16: LoReg = X86::AX;  HiReg = X86::DX;  Opc = X86::MUL16r; break;
-    case MVT::i32: LoReg = X86::EAX; HiReg = X86::EDX; Opc = X86::MUL32r; break;
-    case MVT::i64: LoReg = X86::RAX; HiReg = X86::RDX; Opc = X86::MUL64r; break;
+    case MVT::i8:  LoReg = X86::AL;  Opc = X86::MUL8r; break;
+    case MVT::i16: LoReg = X86::AX;  Opc = X86::MUL16r; break;
+    case MVT::i32: LoReg = X86::EAX; Opc = X86::MUL32r; break;
+    case MVT::i64: LoReg = X86::RAX; Opc = X86::MUL64r; break;
     }
     
     SDValue InFlag = CurDAG->getCopyToReg(CurDAG->getEntryNode(), dl, LoReg,