[cfe-commits] r59622 - /cfe/trunk/lib/CodeGen/CGExprScalar.cpp

[Daniel Dunbar]

Author: ddunbar
Date: Wed Nov 19 05:54:05 2008
New Revision: 59622

URL: http://llvm.org/viewvc/llvm-project?rev=59622&view=rev
Log:
Add spec ref to comment.

Modified:
    cfe/trunk/lib/CodeGen/CGExprScalar.cpp

Modified: cfe/trunk/lib/CodeGen/CGExprScalar.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGExprScalar.cpp?rev=59622&r1=59621&r2=59622&view=diff

==============================================================================
--- cfe/trunk/lib/CodeGen/CGExprScalar.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGExprScalar.cpp Wed Nov 19 05:54:05 2008
@@ -787,7 +787,9 @@
   Result = EmitScalarConversion(Result, ResultTy, LHSTy);
   
   // Store the result value into the LHS lvalue. Bit-fields are
-  // handled specially because the result is altered by the store.
+  // handled specially because the result is altered by the store,
+  // i.e., [C99 6.5.16p1] 'An assignment expression has the value of
+  // the left operand after the assignment...'.
   if (LHSLV.isBitfield())
     CGF.EmitStoreThroughBitfieldLValue(RValue::get(Result), LHSLV, LHSTy,
                                        &Result);
@@ -1003,7 +1005,9 @@
   Value *RHS = Visit(E->getRHS());
   
   // Store the value into the LHS.  Bit-fields are handled specially
-  // because the result is altered by the store.
+  // because the result is altered by the store, i.e., [C99 6.5.16p1]
+  // 'An assignment expression has the value of the left operand after
+  // the assignment...'.  
   // FIXME: Volatility!
   if (LHS.isBitfield())
     CGF.EmitStoreThroughBitfieldLValue(RValue::get(RHS), LHS, E->getType(),