1 files changed, 90 insertions, 0 deletions
diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi
index 64ad83302f5..dc87ca732d3 100644
--- a/gcc/doc/md.texi
+++ b/gcc/doc/md.texi
@@ -2979,6 +2979,96 @@ A memory reference that is encoded within the opcode.
 
 @end table
 
+@item RL78---@file{config/rl78/constraints.md}
+@table @code
+
+@item Int3
+An integer constant in the range 1 @dots{} 7.
+@item Int8
+An integer constant in the range 0 @dots{} 255.
+@item J
+An integer constant in the range @minus{}255 @dots{} 0
+@item K
+The integer constant 1.
+@item L
+The integer constant -1.
+@item M
+The integer constant 0.
+@item N
+The integer constant 2.
+@item O
+The integer constant -2.
+@item P
+An integer constant in the range 1 @dots{} 15.
+@item Qbi
+The built-in compare types--eq, ne, gtu, ltu, geu, and leu.
+@item Qsc
+The synthetic compare types--gt, lt, ge, and le.
+@item Wab
+A memory reference with an absolute address.
+@item Wbc
+A memory reference using @code{BC} as a base register, with an optional offset.
+@item Wca
+A memory reference using @code{AX}, @code{BC}, @code{DE}, or @code{HL} for the address, for calls.
+@item Wcv
+A memory reference using any 16-bit register pair for the address, for calls.
+@item Wd2
+A memory reference using @code{DE} as a base register, with an optional offset.
+@item Wde
+A memory reference using @code{DE} as a base register, without any offset.
+@item Wfr
+Any memory reference to an address in the far address space.
+@item Wh1
+A memory reference using @code{HL} as a base register, with an optional one-byte offset.
+@item Whb
+A memory reference using @code{HL} as a base register, with @code{B} or @code{C} as the index register.
+@item Whl
+A memory reference using @code{HL} as a base register, without any offset.
+@item Ws1
+A memory reference using @code{SP} as a base register, with an optional one-byte offset.
+@item Y
+Any memory reference to an address in the near address space.
+@item A
+The @code{AX} register.
+@item B
+The @code{BC} register.
+@item D
+The @code{DE} register.
+@item R
+@code{A} through @code{L} registers.
+@item S
+The @code{SP} register.
+@item T
+The @code{HL} register.
+@item Z08W
+The 16-bit @code{R8} register.
+@item Z10W
+The 16-bit @code{R10} register.
+@item Zint
+The registers reserved for interrupts (@code{R24} to @code{R31}).
+@item a
+The @code{A} register.
+@item b
+The @code{B} register.
+@item c
+The @code{C} register.
+@item d
+The @code{D} register.
+@item e
+The @code{E} register.
+@item h
+The @code{H} register.
+@item l
+The @code{L} register.
+@item v
+The virtual registers.
+@item w
+The @code{PSW} register.
+@item x
+The @code{X} register.
+
+@end table
+
 @item RX---@file{config/rx/constraints.md}
 @table @code
 @item Q