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-rw-r--r--gcc/doc/md.texi8
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi
index a5db6c6..59db56b 100644
--- a/gcc/doc/md.texi
+++ b/gcc/doc/md.texi
@@ -2125,6 +2125,14 @@ into consecutive memory locations. Operand 0 is the first of the
consecutive memory locations, operand 1 is the first register, and
operand 2 is a constant: the number of consecutive registers.
+@cindex @code{push@var{m}} instruction pattern
+@item @samp{push@var{m}}
+Output an push instruction. Operand 0 is value to push. Used only when
+@code{PUSH_ROUNDING} is defined. For historical reason, this pattern may be
+missing and in such case an @code{mov} expander is used instead, with a
+@code{MEM} expression forming the push operation. The @cpde{mov} expander
+method is deprecated.
+
@cindex @code{add@var{m}3} instruction pattern
@item @samp{add@var{m}3}
Add operand 2 and operand 1, storing the result in operand 0. All operands