rtl.texi (RTX_AUTOINC): Document that the first operand is the automodified register.

gcc/ * doc/rtl.texi (RTX_AUTOINC): Document that the first operand is the automodified register. From-SVN: r214890

rtl.texi (RTX_AUTOINC): Document that the first operand is the automodified register.
gcc/ * doc/rtl.texi (RTX_AUTOINC): Document that the first operand is the automodified register. From-SVN: r214890
64e04187 · Richard Sandiford · Richard Sandiford · 4fbca4ba · 64e04187 · 64e04187
Commit 64e04187 authored Sep 03, 2014 by Richard Sandiford Committed by Richard Sandiford Sep 03, 2014
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--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
 2014-09-03  Richard Sandiford  <rdsandiford@googlemail.com>

+	* doc/rtl.texi (RTX_AUTOINC): Document that the first operand is
+	the automodified register.
+
+2014-09-03  Richard Sandiford  <rdsandiford@googlemail.com>
+
 	* output.h (get_some_local_dynamic_name): Declare.
 	* final.c (some_local_dynamic_name): New variable.
 	(get_some_local_dynamic_name): New function.
--- a/gcc/doc/rtl.texi
+++ b/gcc/doc/rtl.texi
@@ -193,7 +193,8 @@ An RTX code for something that matches in insns, such as

 @item RTX_AUTOINC
 An RTX code for an auto-increment addressing mode, such as
-@code{POST_INC}.
+@code{POST_INC}.  @samp{XEXP (@var{x}, 0)} gives the auto-modified
+register.

 @item RTX_EXTRA
 All other RTX codes.  This category includes the remaining codes used