First step of switch lowering refactoring: perform worklist-driven

[oota-llvm.git] / include / llvm / CallingConv.h

diff --git a/include/llvm/CallingConv.h b/include/llvm/CallingConv.h
index 2e3cceeb466e4084d6fd080cca58a0ccd8427b7a..4bacb1d954fbe29a40ee86ce3fb1502bff566c66 100644 (file)
--- a/include/llvm/CallingConv.h
+++ b/include/llvm/CallingConv.h
@@ -24,26 +24,18 @@ namespace CallingConv {
   /// calling conventions.
   /// @brief LLVM Calling Convention Representation
   enum ID {
-    // C - The default llvm calling convention, compatible with C.  This
-    // convention is the only calling convention that supports varargs calls.
-    // As with typical C calling conventions, the callee/caller have to tolerate
-    // certain amounts of prototype mismatch.
+    /// C - The default llvm calling convention, compatible with C.  This
+    /// convention is the only calling convention that supports varargs calls.
+    /// As with typical C calling conventions, the callee/caller have to tolerate
+    /// certain amounts of prototype mismatch.
     C = 0,
     
-    /// CSRet - C Struct Return calling convention.  This convention requires
-    /// that the function return void and take a pointer as the first argument
-    /// of the struct.  This is used by targets which need to distinguish
-    /// between C functions returning a structure, and C functions taking a
-    /// structure pointer as the first argument to the function.
-    CSRet = 1,
-
-
     // Generic LLVM calling conventions.  None of these calling conventions
     // support varargs calls, and all assume that the caller and callee
     // prototype exactly match.
 
-    // Fast - This calling convention attempts to make calls as fast as possible
-    // (e.g. by passing things in registers).
+    /// Fast - This calling convention attempts to make calls as fast as possible
+    /// (e.g. by passing things in registers).
     Fast = 8,
 
     // Cold - This calling convention attempts to make code in the caller as
@@ -54,7 +46,18 @@ namespace CallingConv {
 
     // Target - This is the start of the target-specific calling conventions,
     // e.g. fastcall and thiscall on X86.
-    FirstTargetCC = 64
+    FirstTargetCC = 64,
+
+    /// X86_StdCall - stdcall is the calling conventions mostly used by the
+    /// Win32 API. It is basically the same as the C convention with the
+    /// difference in that the callee is responsible for popping the arguments
+    /// from the stack.
+    X86_StdCall = 64,
+
+    /// X86_FastCall - 'fast' analog of X86_StdCall. Passes first two arguments
+    /// in ECX:EDX registers, others - via stack. Callee is responsible for
+    /// stack cleaning.
+    X86_FastCall = 65
   };
 } // End CallingConv namespace