rename DenseMap to IndexedMap.

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

diff --git a/include/llvm/CodeGen/SelectionDAGNodes.h b/include/llvm/CodeGen/SelectionDAGNodes.h
index 670bb7c7abd8bed3cf6f22a9fb4e1f645ab24cba..b928387b78dcefa9899d58324a1e8d172db7f219 100644 (file)
--- a/include/llvm/CodeGen/SelectionDAGNodes.h
+++ b/include/llvm/CodeGen/SelectionDAGNodes.h
@@ -84,6 +84,13 @@ namespace ISD {
 
     // The address of the GOT
     GLOBAL_OFFSET_TABLE,
+    
+    // FRAMEADDR, RETURNADDR - These nodes represent llvm.frameaddress and
+    // llvm.returnaddress on the DAG.  These nodes take one operand, the index
+    // of the frame or return address to return.  An index of zero corresponds
+    // to the current function's frame or return address, an index of one to the
+    // parent's frame or return address, and so on.
+    FRAMEADDR, RETURNADDR,
 
     // TargetConstant* - Like Constant*, but the DAG does not do any folding or
     // simplification of the constant.
@@ -133,20 +140,25 @@ namespace ISD {
     // UNDEF - An undefined node
     UNDEF,
     
-    /// FORMAL_ARGUMENTS(CHAIN, CC#, ISVARARG) - This node represents the formal
-    /// arguments for a function.  CC# is a Constant value indicating the
-    /// calling convention of the function, and ISVARARG is a flag that
-    /// indicates whether the function is varargs or not.  This node has one
-    /// result value for each incoming argument, plus one for the output chain.
-    /// It must be custom legalized.
+    /// FORMAL_ARGUMENTS(CHAIN, CC#, ISVARARG, FLAG0, ..., FLAGn) - This node
+    /// represents the formal arguments for a function.  CC# is a Constant value
+    /// indicating the calling convention of the function, and ISVARARG is a
+    /// flag that indicates whether the function is varargs or not. This node
+    /// has one result value for each incoming argument, plus one for the output
+    /// chain. It must be custom legalized. See description of CALL node for
+    /// FLAG argument contents explanation.
     /// 
     FORMAL_ARGUMENTS,
     
     /// RV1, RV2...RVn, CHAIN = CALL(CHAIN, CC#, ISVARARG, ISTAILCALL, CALLEE,
-    ///                              ARG0, SIGN0, ARG1, SIGN1, ... ARGn, SIGNn)
+    ///                              ARG0, FLAG0, ARG1, FLAG1, ... ARGn, FLAGn)
     /// This node represents a fully general function call, before the legalizer
-    /// runs.  This has one result value for each argument / signness pair, plus
-    /// a chain result. It must be custom legalized.
+    /// runs.  This has one result value for each argument / flag pair, plus
+    /// a chain result. It must be custom legalized. Flag argument indicates
+    /// misc. argument attributes. Currently:
+    /// Bit 0 - signness
+    /// Bit 1 - 'inreg' attribute
+    /// Bit 2 - 'sret' attribute
     CALL,
 
     // EXTRACT_ELEMENT - This is used to get the first or second (determined by
@@ -506,7 +518,7 @@ namespace ISD {
     
     // DEBUG_LOC - This node is used to represent source line information
     // 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
+    // number, then a column then a file id (provided by MachineModuleInfo.) It
     // produces a token chain as output.
     DEBUG_LOC,