* h8300/h8300.c (h8300_current_function_monitor_function_p):

	New function. Added to check monitor functions. 
	(h8300_option_override): Modified to generate error/warning 
	messages for invalid combinations of different command line 
	options.
	* h8300/h8300.md: Generate 'rte' for monitor functions. Do not
	save EXR on stack for monitor function in case of H8S target 
	when "-mno-exr" is passed.
	* h8300/h8300-protos.h 
	(h8300_current_function_monitor_function_p): Add prototype.
	* doc/invoke.texi: Document H8S options.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@186109 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 13 insertions, 1 deletions

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 672e597492d..36d09cde9d3 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -596,7 +596,7 @@ Objective-C and Objective-C++ Dialects}.
 -tno-android-cc -tno-android-ld}
 
 @emph{H8/300 Options}
-@gccoptlist{-mrelax  -mh  -ms  -mn  -mint32  -malign-300}
+@gccoptlist{-mrelax  -mh  -ms  -mn  -mexr -mno-exr  -mint32  -malign-300}
 
 @emph{HPPA Options}
 @gccoptlist{-march=@var{architecture-type} @gol
@@ -12815,6 +12815,18 @@ must be used either with @option{-mh} or @option{-ms}.
 @opindex ms2600
 Generate code for the H8S/2600.  This switch must be used with @option{-ms}.
 
+@item -mexr
+@opindex mexr
+Extended registers are stored on stack before execution of function
+with monitor attribute. Default option is @option{-mexr}.
+This option is valid only for H8S targets.
+
+@item -mno-exr
+@opindex mno-exr
+Extended registers are not stored on stack before execution of function 
+with monitor attribute. Default option is @option{-mno-exr}. 
+This option is valid only for H8S targets.
+
 @item -mint32
 @opindex mint32
 Make @code{int} data 32 bits by default.