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Update documentation about tm_p.h

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From-SVN: r178618
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Michael Meissner 2011-09-06 23:29:48 +00:00 committed by Michael Meissner
parent e25fc78ff5
commit 7b50d234f6
2 changed files with 15 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2011-09-06 Michael Meissner <meissner@linux.vnet.ibm.com>
* doc/configfiles.texi (Configuration Files): Update documentation
about tm_p.h and remove FIXME comment.
2011-09-06 Uros Bizjak <ubizjak@gmail.com>
* config/i386/i386.c (ix86_function_value_regno_p): Use AX_REG.

12
gcc/doc/configfiles.texi
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@ -59,6 +59,14 @@ these include the autoconfigured headers generated by
machine.
@item
@file{tm_p.h}, which includes the header @file{@var{machine}-protos.h}
that contains prototypes for functions in the target @file{.c} file.
FIXME: why is such a separate header necessary?
that contains prototypes for functions in the target
@file{@var{machine}.c} file. The header @file{@var{machine}-protos.h}
can include prototypes of functions that use rtl and tree data
structures inside appropriate @code{#ifdef RTX_CODE} and @code{#ifdef
TREE_CODE} conditional code segements. The
@file{@var{machine}-protos.h} is included after the @file{rtl.h}
and/or @file{tree.h} would have been included. The @file{tm_p.h} also
includes the header @file{tm-preds.h} which is generated by
@file{genpreds} program during the build to define the declarations
and inline functions for the predicate functions.
@end itemize