dummy-checksum.c: New.

[gcc.git] / gcc / doc / invoke.texi

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 1306317e7a87de5cd07dee9d5ec1ac60d277b9fb..75227614602b2a3a0668871bd173a347e997a9c0 100644 (file)
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -12941,13 +12941,6 @@ build the project.  To make builds faster, GCC allows users to
 `precompile' a header file; then, if builds can use the precompiled
 header file they will be much faster.
 
-@strong{Caution:} There are a few known situations where GCC will
-crash when trying to use a precompiled header.  If you have trouble
-with a precompiled header, you should remove the precompiled header
-and compile without it.  In addition, please use GCC's on-line
-defect-tracking system to report any problems you encounter with
-precompiled headers.  @xref{Bugs}.
-
 To create a precompiled header file, simply compile it as you would any
 other file, if necessary using the @option{-x} option to make the driver
 treat it as a C or C++ header file.  You will probably want to use a
@@ -13012,10 +13005,8 @@ the current compilation.  You can't use a C precompiled header for a C++
 compilation.
 
 @item
-The precompiled header file must be produced by the same compiler
-version and configuration as the current compilation is using.
-The easiest way to guarantee this is to use the same compiler binary
-for creating and using precompiled headers.
+The precompiled header file must have been produced by the same compiler
+binary as the current compilation is using.
 
 @item
 Any macros defined before the precompiled header is included must
@@ -13052,7 +13043,10 @@ which options are safe to change and which are not; the safest choice
 is to use exactly the same options when generating and using the
 precompiled header.  The following are known to be safe:
 
-@gccoptlist{-fpreprocessed -pedantic-errors}
+@gccoptlist{-fpreprocessed
+-fsched-interblock -fsched-spec -fsched-spec-load -fsched-spec-load-dangerous
+-fsched-verbose=<number> -fschedule-insns
+-pedantic-errors}
 
 @end itemize