[llvm-commits] [llvm] r116977 - /llvm/trunk/lib/Target/ARM/ARMFastISel.cpp

[Eric Christopher]

Author: echristo
Date: Wed Oct 20 19:01:47 2010
New Revision: 116977

URL: http://llvm.org/viewvc/llvm-project?rev=116977&view=rev
Log:
Custom lower f64 args passed in integer registers.

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=116977&r1=116976&r2=116977&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/ARMFastISel.cpp (original)
+++ llvm/trunk/lib/Target/ARM/ARMFastISel.cpp Wed Oct 20 19:01:47 2010
@@ -1356,6 +1356,21 @@
               VA.getLocReg())
       .addReg(Arg);
       RegArgs.push_back(VA.getLocReg());
+    } else if (VA.needsCustom()) {
+      // TODO: We need custom lowering for vector (v2f64) args.
+      if (VA.getLocVT() != MVT::f64) return false;
+      
+      CCValAssign &NextVA = ArgLocs[++i];
+
+      // TODO: Only handle register args for now.
+      if(!(VA.isRegLoc() && NextVA.isRegLoc())) return false;
+
+      AddOptionalDefs(BuildMI(*FuncInfo.MBB, FuncInfo.InsertPt, DL,
+                              TII.get(ARM::VMOVRRD), VA.getLocReg())
+                      .addReg(NextVA.getLocReg(), RegState::Define)
+                      .addReg(Arg));
+      RegArgs.push_back(VA.getLocReg());
+      RegArgs.push_back(NextVA.getLocReg());
     } else {
       // Need to store
       return false;