[Patch ARM] Improve guality tests - part 1 - pr36728-1.c

[Ramana Radhakrishnan]

On 04/02/2015 11:10, Jakub Jelinek wrote:
> On Wed, Feb 04, 2015 at 11:03:29AM +0000, Ramana Radhakrishnan wrote:
>>>
>>> Changelog:
>>>
>>> * gcc.dg/guality/pr36728-1.c: Skip some tests for arm.
>>>
>>
>> Segher and I discussed an alternative approach - marking these as "m"
>> (arg1) , "m" (arg2) .... etc in the asm blocks also gives us the same
>> effect and then probably removes the need to rely on such target
>> markers.  I've just noticed that the AArch64 port has the same issues.
>
> I don't think it is a good idea to significantly change the function being
> tested.  Then it tests completely different thing from what it is meant to
> test.
> But in the pr36728-{1,2}.c case, perhaps you could instead change the
> caller, by adding
>    asm volatile ("" : : "r" (l));
> before return 0; in main, that way DW_OP_GNU_entry_value could work if there
> is no other way to find the value of the arguments, because l will need to
> live somewhere (in some register or memory) across the foo call.

That's more elegant than marking them all as "used" - I didn't know 
about the DW_OP_GNU_entry_value extension. Pretty neat now that I've 
read about it. It seems to have fixed up all of these issues here.

I don't have access to s390 so I'm not about to revert the s390 bits in 
this particular case.


<DATE>  Jakub Jelinek  <jakub@redhat.com>
         Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>

	* gcc.dg/guality/pr36728-1.c (main): Adjust for targets that pass 
parameters in registers.
	* gcc.dg/guality/pr36728-2.c: Likewise.
	* gcc.dg/guality/pr36728-3.c: Likewise.
	* gcc.dg/guality/pr36728-4.c: Likewise.

regards
Ramana

>
> 	Jakub
>



-------------- next part --------------
diff --git a/gcc/testsuite/gcc.dg/guality/pr36728-1.c b/gcc/testsuite/gcc.dg/guality/pr36728-1.c
index ba7a6c2..962a38a 100644
--- a/gcc/testsuite/gcc.dg/guality/pr36728-1.c
+++ b/gcc/testsuite/gcc.dg/guality/pr36728-1.c
@@ -49,5 +49,6 @@ main ()
   int l = 0;
   asm ("" : "=r" (l) : "0" (l));
   a = foo (l + 1, l + 2, l + 3, l + 4, l + 5, l + 6, l + 30);
+  asm volatile ( "" : : "r" (l));
   return 0;
 }
diff --git a/gcc/testsuite/gcc.dg/guality/pr36728-2.c b/gcc/testsuite/gcc.dg/guality/pr36728-2.c
index 6daa021..636b968 100644
--- a/gcc/testsuite/gcc.dg/guality/pr36728-2.c
+++ b/gcc/testsuite/gcc.dg/guality/pr36728-2.c
@@ -49,5 +49,6 @@ main ()
   int l = 0;
   asm ("" : "=r" (l) : "0" (l));
   a = foo (l + 1, l + 2, l + 3, l + 4, l + 5, l + 6, l + 30);
+  asm ("" :  : "r" (l));
   return 0;
 }
diff --git a/gcc/testsuite/gcc.dg/guality/pr36728-3.c b/gcc/testsuite/gcc.dg/guality/pr36728-3.c
index bb2c067..5be2cbd 100644
--- a/gcc/testsuite/gcc.dg/guality/pr36728-3.c
+++ b/gcc/testsuite/gcc.dg/guality/pr36728-3.c
@@ -47,5 +47,6 @@ main ()
   int l = 0;
   asm volatile ("" : "=r" (l) : "0" (l));
   foo (l + 1, l + 2, l + 3, l + 4, l + 5, l + 6, l + 30);
+  asm volatile ( "" : : "r" (l));
   return 0;
 }
diff --git a/gcc/testsuite/gcc.dg/guality/pr36728-4.c b/gcc/testsuite/gcc.dg/guality/pr36728-4.c
index fee79c4..a1cb093 100644
--- a/gcc/testsuite/gcc.dg/guality/pr36728-4.c
+++ b/gcc/testsuite/gcc.dg/guality/pr36728-4.c
@@ -47,5 +47,6 @@ main ()
   int l = 0;
   asm volatile ("" : "=r" (l) : "0" (l));
   foo (l + 1, l + 2, l + 3, l + 4, l + 5, l + 6, l + 30);
+  asm volatile ( "" : "r" (l));
   return 0;
 }