[llvm-commits] CVS: llvm/include/llvm/CallingConv.h

Chris Lattner lattner at cs.uiuc.edu
Fri May 6 12:59:22 PDT 2005



Changes in directory llvm/include/llvm:

CallingConv.h added (r1.1)
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Log message:

New file


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Diffs of the changes:  (+54 -0)

 CallingConv.h |   54 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 54 insertions(+)


Index: llvm/include/llvm/CallingConv.h
diff -c /dev/null llvm/include/llvm/CallingConv.h:1.1
*** /dev/null	Fri May  6 14:59:18 2005
--- llvm/include/llvm/CallingConv.h	Fri May  6 14:59:08 2005
***************
*** 0 ****
--- 1,54 ----
+ //===-- llvm/CallingConv.h - LLVM Calling Conventions -----------*- C++ -*-===//
+ //
+ //                     The LLVM Compiler Infrastructure
+ //
+ // This file was developed by the LLVM research group and is distributed under
+ // the University of Illinois Open Source License. See LICENSE.TXT for details.
+ //
+ //===----------------------------------------------------------------------===//
+ //
+ // This file defines a set of enums which specify the assigned numeric values
+ // for known llvm calling conventions.
+ //
+ //===----------------------------------------------------------------------===//
+ 
+ #ifndef LLVM_CALLINGCONV_H
+ #define LLVM_CALLINGCONV_H
+ 
+ namespace llvm {
+ 
+ /// CallingConv Namespace - This namespace contains an enum with a value for
+ /// the well-known calling conventions.
+ ///
+ namespace CallingConv {
+   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 = 0,
+ 
+ 
+     // 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 = 8,
+ 
+     // Cold - This calling convention attempts to make code in the caller as
+     // efficient as possible under the assumption that the call is not commonly
+     // executed.  As such, these calls often preserve all registers so that the
+     // call does not break any live ranges in the caller side.
+     Cold = 9,
+ 
+     // Target - This is the start of the target-specific calling conventions,
+     // e.g. fastcall and thiscall on X86.
+     FirstTargetCC = 64,
+   };
+ } // End CallingConv namespace
+ 
+ } // End llvm namespace
+ 
+ #endif






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