md.texi (RS6000 constraints): Document H, Z, a, t, and W constraints.

2006-11-02  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * doc/md.texi (RS6000 constraints): Document H, Z, a, t, and W
        constraints.

From-SVN: r118448

gcc/ChangeLog

+2006-11-02  Andrew Pinski  <andrew_pinski@playstation.sony.com>
+
+	* doc/md.texi (RS6000 constraints): Document H, Z, a, t, and W
+	constraints.
+
 2006-11-02  Brooks Moses  <brooks.moses@codesourcery.com>
 
 	* doc/invoke.texi: Fix mfp-trap-mode typo.

gcc/doc/md.texi

@@ -1836,13 +1836,25 @@ Constant whose negation is a signed 16-bit constant
 Floating point constant that can be loaded into a register with one
 instruction per word
 
+@item H
+Integer/Floating point constant that can be loaded into a register using
+three instructions
+
 @item Q
 Memory operand that is an offset from a register (@samp{m} is preferable
 for @code{asm} statements)
 
+@item Z
+Memory operand that is an indexed or indirect from a register (@samp{m} is
+preferable for @code{asm} statements)
+
 @item R
 AIX TOC entry
 
+@item a
+Address operand that is an indexed or indirect from a register (@samp{p} is
+preferable for @code{asm} statements)
+
 @item S
 Constant suitable as a 64-bit mask operand
 
@@ -1851,6 +1863,13 @@ Constant suitable as a 32-bit mask operand
 
 @item U
 System V Release 4 small data area reference
+
+@item t
+AND masks that can be performed by two rldic@{l, r@} instructions
+
+@item W
+Vector constant that does not require memory
+
 @end table
 
 @item MorphoTech family---@file{config/mt/mt.h}