Grammer correction.

[oota-llvm.git] / include / llvm / CodeGen / SelectionDAGNodes.h

diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index bf0191031b0721aa3130d8809de7edd64023530e..eb48ce8f6d1b688852a2810c8b61ca22709bce13 100644 (file)
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -92,12 +92,6 @@ namespace ISD {
     // SelectionDAG.  The register is available from the RegSDNode object.
     CopyFromReg,
 
-    // ImplicitDef - This node indicates that the specified register is
-    // implicitly defined by some operation (e.g. its a live-in argument).  The
-    // two operands to this are the token chain coming in and the register.
-    // The only result is the token chain going out.
-    ImplicitDef,
-
     // UNDEF - An undefined node
     UNDEF,
 
@@ -220,6 +214,14 @@ namespace ISD {
     // FP_EXTEND - Extend a smaller FP type into a larger FP type.
     FP_EXTEND,
 
+    // BIT_CONVERT - Theis operator converts between integer and FP values, as
+    // if one was stored to memory as integer and the other was loaded from the
+    // same address (or equivalently for vector format conversions, etc).  The 
+    // source and result are required to have the same bit size (e.g. 
+    // f32 <-> i32).  This can also be used for int-to-int or fp-to-fp 
+    // conversions, but that is a noop, deleted by getNode().
+    BIT_CONVERT,
+    
     // FNEG, FABS, FSQRT, FSIN, FCOS - Perform unary floating point negation,
     // absolute value, square root, sine and cosine operations.
     FNEG, FABS, FSQRT, FSIN, FCOS,
@@ -353,11 +355,17 @@ namespace ISD {
     LOCATION,
     
     // DEBUG_LOC - This node is used to represent source line information
-    // embedded in the code.  It takes token chain as input, then a line number,
-    // then a column then a file id (provided by MachineDebugInfo.  It produces
-    // a token chain as output.
+    // embedded in the code.  It takes a token chain as input, then a line
+    // number, then a column then a file id (provided by MachineDebugInfo.) It
+    // produces a token chain as output.
     DEBUG_LOC,
     
+    // DEBUG_LABEL - This node is used to mark a location in the code where a
+    // label should be generated for use by the debug information.  It takes a
+    // token chain as input and then a unique id (provided by MachineDebugInfo.)
+    // It produces a token chain as output.
+    DEBUG_LABEL,
+    
     // BUILTIN_OP_END - This must be the last enum value in this list.
     BUILTIN_OP_END,
   };