[llvm-commits] [llvm] r143739 - /llvm/trunk/lib/Target/ARM/ARMFastISel.cpp

[Chad Rosier]

Author: mcrosier
Date: Fri Nov  4 17:29:00 2011
New Revision: 143739

URL: http://llvm.org/viewvc/llvm-project?rev=143739&view=rev
Log:
Enable support for materializing i1, i8, and i16 integers via move immediate.

Modified:
    llvm/trunk/lib/Target/ARM/ARMFastISel.cpp

Modified: llvm/trunk/lib/Target/ARM/ARMFastISel.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/ARMFastISel.cpp?rev=143739&r1=143738&r2=143739&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMFastISel.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMFastISel.cpp Fri Nov  4 17:29:00 2011
@@ -545,22 +545,27 @@
 
 unsigned ARMFastISel::ARMMaterializeInt(const Constant *C, EVT VT) {
 
-  // For now 32-bit only.
-  if (VT != MVT::i32) return false;
-
-  unsigned DestReg = createResultReg(TLI.getRegClassFor(VT));
+  if (VT != MVT::i32 && VT != MVT::i16 && VT != MVT::i8 && VT != MVT::i1)
+    return false;
 
   // If we can do this in a single instruction without a constant pool entry
   // do so now.
   const ConstantInt *CI = cast<ConstantInt>(C);
   if (Subtarget->hasV6T2Ops() && isUInt<16>(CI->getSExtValue())) {
     unsigned Opc = isThumb ? ARM::t2MOVi16 : ARM::MOVi16;
+    unsigned ImmReg = createResultReg(TLI.getRegClassFor(VT));
     AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL,
-                            TII.get(Opc), DestReg)
+                            TII.get(Opc), ImmReg)
                     .addImm(CI->getSExtValue()));
-    return DestReg;
+    return ImmReg;
   }
 
+  // For now 32-bit only.
+  if (VT != MVT::i32)
+    return false;
+
+  unsigned DestReg = createResultReg(TLI.getRegClassFor(VT));
+
   // MachineConstantPool wants an explicit alignment.
   unsigned Align = TD.getPrefTypeAlignment(C->getType());
   if (Align == 0) {