Re: Help required

[Suvarna]

Hi,

One more information.

I want to pass -mexr option only when -ms is
specified.
In this case (when -ms and -mexr is passed) the
compiler should save exr. This I am supposed to test
using this test case.

How can I do that ?

Thanks in advance.
Regards,
Suv

--- Suvarna <address@hidden> wrote:
> Hi,
> 
> I am writing a Test case for h8300 target. 
> 
> My global config file is as follows.
> 
> /*  ----------------- Start Config file
> ------------------------ */
> load_lib "framework.exp"
> 
> #
> # Determine target machines for all known targets
> #
> 
> verbose "Global Config File: target_triplet is
> $target_triplet" 2
> global target_list
> case "$target_triplet" in {
>     { "h8300-*-*" } 
>       {
>               set target_list { "h8300-sim{-mh,-ms}" 
>       }
>     }
> }
> 
> /*  ----------------- End config file
> ------------------------ */
> 
> 
> There is a program given below which I want to run
> only when -ms compiler option is specified.
> 
> How do I specify this ? Can someone help me ?
> 
> 
> 
> /* ----------------- Start of program
> ----------------------- */
> 
> /* { dg-do compile } */
> /* { dg-options "-Wall -O2 -mexr" } */
> 
> int mon_func(void) __attribute__((monitor));
> int mon_func(void)
> {
>       return 0;
> }
> 
> void main(void)
> {
>       int x;
>       x = mon_func();
> }
> 
> /* { dg-final { scan-assembler "exr" } } */
> 
> /* ----------------- End of program
> ----------------------- */
> 
> 
> Another problem which I could still not solve is as
> follows ( I have posted it long back).
> 
> I want to ensure that saveall attribute really saves
> all registers on stack.
> 
> The problem here is that for various target options
> the saving mechanism is different.
> e.g. when -ms option is specified the saving would
> be
> done using ldm/stm instruction but 
> for other target options it different. 
> How do I write a test case which will be applicable
> only for specified target option ?
> 
> The test program and expected assembly is give at
> the
> end of mail. 
> I have marked what I want to test.
> 
> Basically I want to ensure that using saveall
> attribute really saves
> all registers er0 to er7.  How do I match the pairs
> in
> my test case ?
> 
> An example would really help.
> 
> Thanks in advance.
> 
> Regards,
> 
> Suv
> 
> 
> /* ----------------- Begin program
> -------------------- */
> register int rg asm("r5");
> int a;
> __attribute__ ((interrupt_handler,saveall)) void
> foo()
> {
>       int b;
>       a = 1 ;
>       b = a++;
>       rg = b;
> }
> /* ----------------------- End program
> ----------------------- */
> 
> The 'C' program given above should generate H8/300
> assembly code some what like
> 
> /* --------------- begin --------------- */
> 
> ;     GCC For the Hitachi H8/300
> ;     By Hitachi America Ltd and Cygnus Support
> ; -O3
> 
>       .h8300hn
>       .file   "test.c"
>       .section .text
>       .align 1
>       .global _foo
> _foo:
>       mov.l   er6,@-er7
>       mov.w   r7,r6
>       mov.l   er0,@-er7 ; Test 1.0.1 <-------------
>       mov.l   er1,@-er7 ; Test 1.1.1 <----------- 
>       mov.l   er2,@-er7 ; Test 1.2.1 <---------
>       mov.l   er3,@-er7 ; Test 1.3.1 <-------  |
>       mov.l   er4,@-er7 ; Test 1.4.1 <-----  | |
>       mov.l   er5,@-er7 ; Test 1.5.1 <---  | | |
>       mov.w   #1,r2     ;                | | | |
>       mov.w   r2,@_a    ;                | | | |
>       mov.w   #_a,r3    ;                | | | | 
>       mov.w   r2,r0     ;                | | | | 
>       adds    #1,er2    ;                | | | |
>       mov.w   r2,@er3   ;                | | | |
>       mov.w   r0,r5     ;                | | | |
>       mov.l   @er7+,er5 ; Test 1.0.2 <---  | | | 
>       mov.l   @er7+,er4 ; Test 1.1.2 <-----  | | 
>       mov.l   @er7+,er3 ; Test 1.2.2 <-------  |
>       mov.l   @er7+,er2 ; Test 1.3.2 <--------- 
>       mov.l   @er7+,er1 ; Test 1.4.2 <-----------
>       mov.l   @er7+,er0 ; Test 1.5.2 <-------------
>       mov.l   @er7+,er6
>       rte ; <------------------------ Test 2
>       .comm _a,2
>       .ident  "GCC: (GNU) 3.3.1"
> 
> /* --------------- end ----------------- */
> 
> 
> 
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