[llvm-commits] [llvm] r145896 - /llvm/trunk/lib/Target/X86/X86FrameLowering.cpp

[Bill Wendling]

Author: void
Date: Mon Dec  5 19:57:48 2011
New Revision: 145896

URL: http://llvm.org/viewvc/llvm-project?rev=145896&view=rev
Log:
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Modified:
    llvm/trunk/lib/Target/X86/X86FrameLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86FrameLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86FrameLowering.cpp?rev=145896&r1=145895&r2=145896&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86FrameLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86FrameLowering.cpp Mon Dec  5 19:57:48 2011
@@ -456,6 +456,9 @@
     int CURegNum = getCompactUnwindRegNum(CURegs, Reg);
     if (CURegNum == -1)
       return ~0U;
+
+    // Encode the 3-bit register number in order, skipping over 3-bits for each
+    // register.
     RegEnc |= (CURegNum & 0x7) << ((5 - I) * 3);
   }