[llvm-commits] [llvm] r102980 - /llvm/trunk/lib/Target/ARM/Thumb1RegisterInfo.cpp

[Jim Grosbach]

Author: grosbach
Date: Mon May  3 19:11:37 2010
New Revision: 102980

URL: http://llvm.org/viewvc/llvm-project?rev=102980&view=rev
Log:
rdar://7937137 - dbg values not being handled in thumb1 version of
eliminateFrameIndex(), leading to llvm_unreachable() assertion failure.

Modified:
    llvm/trunk/lib/Target/ARM/Thumb1RegisterInfo.cpp

Modified: llvm/trunk/lib/Target/ARM/Thumb1RegisterInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/ARM/Thumb1RegisterInfo.cpp?rev=102980&r1=102979&r2=102980&view=diff
==============================================================================
--- llvm/trunk/lib/Target/ARM/Thumb1RegisterInfo.cpp (original)
+++ llvm/trunk/lib/Target/ARM/Thumb1RegisterInfo.cpp Mon May  3 19:11:37 2010
@@ -464,6 +464,13 @@
     Offset -= AFI->getFramePtrSpillOffset();
   }
 
+  // Special handling of dbg_value instructions.
+  if (MI.isDebugValue()) {
+    MI.getOperand(i).  ChangeToRegister(FrameReg, false /*isDef*/);
+    MI.getOperand(i+1).ChangeToImmediate(Offset);
+    return 0;
+  }
+
   unsigned Opcode = MI.getOpcode();
   const TargetInstrDesc &Desc = MI.getDesc();
   unsigned AddrMode = (Desc.TSFlags & ARMII::AddrModeMask);