2012-02-28 Richard Guenther <rguenther@suse.de>

[pf3gnuchains/gcc-fork.git] / gcc / rtl.def

diff --git a/gcc/rtl.def b/gcc/rtl.def
index 282cca6..dbf320e 100644 (file)
--- a/gcc/rtl.def
+++ b/gcc/rtl.def
@@ -2,7 +2,7 @@
    Register Transfer Expressions (rtx's) that make up the
    Register Transfer Language (rtl) used in the Back End of the GNU compiler.
    Copyright (C) 1987, 1988, 1992, 1994, 1995, 1997, 1998, 1999, 2000, 2004,
-   2005, 2006, 2007, 2008, 2009, 2010
+   2005, 2006, 2007, 2008, 2009, 2010, 2011
    Free Software Foundation, Inc.
 
 This file is part of GCC.
@@ -296,6 +296,12 @@ DEF_RTL_EXPR(CALL, "call", "ee", RTX_EXTRA)
 
 DEF_RTL_EXPR(RETURN, "return", "", RTX_EXTRA)
 
+/* Like RETURN, but truly represents only a function return, while
+   RETURN may represent an insn that also performs other functions
+   of the function epilogue.  Like RETURN, this may also occur in
+   conditional jumps.  */
+DEF_RTL_EXPR(SIMPLE_RETURN, "simple_return", "", RTX_EXTRA)
+
 /* Special for EH return from subroutine.  */
 
 DEF_RTL_EXPR(EH_RETURN, "eh_return", "", RTX_EXTRA)
@@ -613,6 +619,10 @@ DEF_RTL_EXPR(BSWAP, "bswap", "e", RTX_UNARY)
    or 0 if arg is 0.  */
 DEF_RTL_EXPR(FFS, "ffs", "e", RTX_UNARY)
 
+/* Count number of leading redundant sign bits (number of leading
+   sign bits minus one).  */
+DEF_RTL_EXPR(CLRSB, "clrsb", "e", RTX_UNARY)
+
 /* Count leading zeros.  */
 DEF_RTL_EXPR(CLZ, "clz", "e", RTX_UNARY)
 
@@ -706,6 +716,9 @@ DEF_RTL_EXPR(SS_TRUNCATE, "ss_truncate", "e", RTX_UNARY)
 /* Unsigned saturating truncate.  */
 DEF_RTL_EXPR(US_TRUNCATE, "us_truncate", "e", RTX_UNARY)
 
+/* Floating point multiply/add combined instruction.  */
+DEF_RTL_EXPR(FMA, "fma", "eee", RTX_TERNARY)
+
 /* Information about the variable and its location.  */
 /* Changed 'te' to 'tei'; the 'i' field is for recording
    initialization status of variables.  */
@@ -715,6 +728,15 @@ DEF_RTL_EXPR(VAR_LOCATION, "var_location", "tei", RTX_EXTRA)
    addressable.  */
 DEF_RTL_EXPR(DEBUG_IMPLICIT_PTR, "debug_implicit_ptr", "t", RTX_OBJ)
 
+/* Represents value that argument had on function entry.  The
+   single argument is the DECL_INCOMING_RTL of the corresponding
+   parameter.  */
+DEF_RTL_EXPR(ENTRY_VALUE, "entry_value", "0", RTX_OBJ)
+
+/* Used in VAR_LOCATION for a reference to a parameter that has
+   been optimized away completely.  */
+DEF_RTL_EXPR(DEBUG_PARAMETER_REF, "debug_parameter_ref", "t", RTX_OBJ)
+
 /* All expressions from this point forward appear only in machine
    descriptions.  */
 #ifdef GENERATOR_FILE
@@ -797,9 +819,8 @@ DEF_RTL_EXPR(MATCH_PAR_DUP, "match_par_dup", "iE", RTX_MATCH)
    the result of the one before it.  */
 DEF_RTL_EXPR(MATCH_CODE, "match_code", "ss", RTX_MATCH)
 
-/* Appears only in define_predicate/define_special_predicate
-    expressions.  The argument is a C expression to be injected at this
-    point in the predicate formula.  */
+/* Used to inject a C conditional expression into an .md file.  It can
+   appear in a predicate definition or an attribute expression.  */
 DEF_RTL_EXPR(MATCH_TEST, "match_test", "s", RTX_MATCH)
 
 /* Insn (and related) definitions.  */