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* doc/rtl.texi: Document value extension requirements for CONST_INT.

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From-SVN: r94004
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Paul Brook 2005-01-21 01:54:44 +00:00 committed by Paul Brook
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gcc/ChangeLog
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@ -1,3 +1,7 @@
2005-01-20 Paul Brook <paul@codesourcery.com>
* doc/rtl.texi: Document value extension requirements for CONST_INT.
2005-01-20 Kazu Hirata <kazu@cs.umass.edu>
* tree-cfg.c (tree_verify_flow_info): Check that a nonlocal

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gcc/doc/rtl.texi
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@ -1286,6 +1286,9 @@ This type of expression represents the integer value @var{i}. @var{i}
is customarily accessed with the macro @code{INTVAL} as in
@code{INTVAL (@var{exp})}, which is equivalent to @code{XWINT (@var{exp}, 0)}.
Constants generated for modes with fewer bits than @code{HOST_WIDE_INT}
must be sign extended to full width (e.g., with @code{gen_int_mode}).
@findex const0_rtx
@findex const1_rtx
@findex const2_rtx