re PR middle-end/17660 (manual's description of __attribute__((mode)) is poor, arrang...

2017-01-08  Sandra Loosemore  <sandra@codesourcery.com>

	PR middle-end/17660

	gcc/
	* extend.texi (Common Variable Attributes): Add xref to GCC
	Internals manual to explain mode attribute keywords.

From-SVN: r244215

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index aa231c17cf1b0bdf5f1939959bf2ac0986aa94ce..c8f093e9e12c0e81d80ebf7525a4437db48e891f 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2017-01-08  Sandra Loosemore  <sandra@codesourcery.com>
+
+       PR middle-end/17660
+
+       * extend.texi (Common Variable Attributes): Add xref to GCC
+       Internals manual to explain mode attribute keywords.
+
 2017-01-08  Sandra Loosemore  <sandra@codesourcery.com>
 
        PR other/16519

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index e85da3a03130f14a91c4cc5931fe275b11509939..8af428da505a7ba385bec525d513852d0ddbb7c2 100644 (file)
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -5725,6 +5725,8 @@ This attribute specifies the data type for the declaration---whichever
 type corresponds to the mode @var{mode}.  This in effect lets you
 request an integer or floating-point type according to its width.
 
+@xref{Machine Modes,,, gccint, GNU Compiler Collection (GCC) Internals},
+for a list of the possible keywords for @var{mode}.
 You may also specify a mode of @code{byte} or @code{__byte__} to
 indicate the mode corresponding to a one-byte integer, @code{word} or
 @code{__word__} for the mode of a one-word integer, and @code{pointer}