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Expand comment on struct switchstr. 

This patch, extracted from a larger change on gomp-4_0-branch, expands
a comment documenting struct switchstr in gcc.c.

2015-08-25  Thomas Schwinge  <thomas@codesourcery.com>
	    Joseph Myers  <joseph@codesourcery.com>

	* gcc.c (struct switchstr): Expand comment.

Co-Authored-By: Joseph Myers <joseph@codesourcery.com>

From-SVN: r227173
This commit is contained in:
Thomas Schwinge 2015-08-25 16:53:24 +02:00 committed by Joseph Myers
parent 1fe6befc36
commit db8d09191c
2 changed files with 13 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2015-08-25 Thomas Schwinge <thomas@codesourcery.com>
Joseph Myers <joseph@codesourcery.com>
* gcc.c (struct switchstr): Expand comment.
2015-08-25 Nathan Sidwell <nathan@acm.org>
* config/nvptx/nvptx.c (nvptx_write_function_decl): Reformat.

11
gcc/gcc.c
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@ -3068,10 +3068,15 @@ execute (void)
SWITCH_LIVE to indicate this switch is true in a conditional spec.
SWITCH_FALSE to indicate this switch is overridden by a later switch.
SWITCH_IGNORE to indicate this switch should be ignored (used in %<S).
SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored
SWITCH_IGNORE_PERMANENTLY to indicate this switch should be ignored.
SWITCH_KEEP_FOR_GCC to indicate that this switch, otherwise ignored,
should be included in COLLECT_GCC_OPTIONS.
in all do_spec calls afterwards. Used for %<S from self specs.
The `validated' field is nonzero if any spec has looked at this switch;
if it remains zero at the end of the run, it must be meaningless. */
The `known' field describes whether this is an internal switch.
The `validated' field describes whether any spec has looked at this switch;
if it remains false at the end of the run, the switch must be meaningless.
The `ordering' field is used to temporarily mark switches that have to be
kept in a specific order. */
#define SWITCH_LIVE (1 << 0)
#define SWITCH_FALSE (1 << 1)