Re: [PATCH memory-model 6/8] tools/memory-model: Add types to litmus tests

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On Fri, Nov 06, 2020 at 07:41:48AM +0900, Akira Yokosawa wrote:
> Hi Paul,
> 
> On 2020/11/06 7:00, paulmck@xxxxxxxxxx wrote:
> > From: "Paul E. McKenney" <paulmck@xxxxxxxxxx>
> > 
> > This commit adds type information for global variables in the litmus
> > tests in order to allow easier use with klitmus7.
> 
> IIUC, klitmus7 is happy with existing litmus tests under tools/memory-model.
> So I don't think this change is necessary.
> 
> As a matter of fact, I was preparing a patch set to empty most of the
> initialization blocks in perfbook's CodeSamples/formal/ litmus tests.

Heh!  Someone asked for this change several months back, and I failed
to record who it was.  If they don't object, I will remove this patch.

							Thanx, Paul

> > 
> > Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxx>
> > ---
> >  tools/memory-model/litmus-tests/CoRR+poonceonce+Once.litmus        | 4 +++-
> >  tools/memory-model/litmus-tests/CoRW+poonceonce+Once.litmus        | 4 +++-
> >  tools/memory-model/litmus-tests/CoWR+poonceonce+Once.litmus        | 4 +++-
> >  tools/memory-model/litmus-tests/CoWW+poonceonce.litmus             | 4 +++-
> >  .../litmus-tests/IRIW+fencembonceonces+OnceOnce.litmus             | 5 ++++-
> >  tools/memory-model/litmus-tests/IRIW+poonceonces+OnceOnce.litmus   | 5 ++++-
> >  .../litmus-tests/ISA2+pooncelock+pooncelock+pombonce.litmus        | 7 ++++++-
> >  tools/memory-model/litmus-tests/ISA2+poonceonces.litmus            | 6 +++++-
> >  .../ISA2+pooncerelease+poacquirerelease+poacquireonce.litmus       | 6 +++++-
> >  .../litmus-tests/LB+fencembonceonce+ctrlonceonce.litmus            | 5 ++++-
> >  .../litmus-tests/LB+poacquireonce+pooncerelease.litmus             | 5 ++++-
> >  tools/memory-model/litmus-tests/LB+poonceonces.litmus              | 5 ++++-
> >  .../litmus-tests/MP+fencewmbonceonce+fencermbonceonce.litmus       | 5 ++++-
> >  tools/memory-model/litmus-tests/MP+onceassign+derefonce.litmus     | 5 +++--
> >  .../litmus-tests/MP+polockmbonce+poacquiresilsil.litmus            | 2 ++
> >  .../memory-model/litmus-tests/MP+polockonce+poacquiresilsil.litmus | 2 ++
> >  tools/memory-model/litmus-tests/MP+polocks.litmus                  | 6 +++++-
> >  tools/memory-model/litmus-tests/MP+poonceonces.litmus              | 5 ++++-
> >  .../litmus-tests/MP+pooncerelease+poacquireonce.litmus             | 5 ++++-
> >  tools/memory-model/litmus-tests/MP+porevlocks.litmus               | 6 +++++-
> >  tools/memory-model/litmus-tests/R+fencembonceonces.litmus          | 5 ++++-
> >  tools/memory-model/litmus-tests/R+poonceonces.litmus               | 5 ++++-
> >  .../litmus-tests/S+fencewmbonceonce+poacquireonce.litmus           | 5 ++++-
> >  tools/memory-model/litmus-tests/S+poonceonces.litmus               | 5 ++++-
> >  tools/memory-model/litmus-tests/SB+fencembonceonces.litmus         | 5 ++++-
> >  tools/memory-model/litmus-tests/SB+poonceonces.litmus              | 5 ++++-
> >  tools/memory-model/litmus-tests/SB+rfionceonce-poonceonces.litmus  | 5 ++++-
> >  tools/memory-model/litmus-tests/WRC+poonceonces+Once.litmus        | 5 ++++-
> >  .../litmus-tests/WRC+pooncerelease+fencermbonceonce+Once.litmus    | 5 ++++-
> >  .../litmus-tests/Z6.0+pooncelock+poonceLock+pombonce.litmus        | 7 ++++++-
> >  .../litmus-tests/Z6.0+pooncelock+pooncelock+pombonce.litmus        | 7 ++++++-
> >  .../Z6.0+pooncerelease+poacquirerelease+fencembonceonce.litmus     | 6 +++++-
> >  32 files changed, 130 insertions(+), 31 deletions(-)
> > 
> > diff --git a/tools/memory-model/litmus-tests/CoRR+poonceonce+Once.litmus b/tools/memory-model/litmus-tests/CoRR+poonceonce+Once.litmus
> > index 967f9f2..772544f 100644
> > --- a/tools/memory-model/litmus-tests/CoRR+poonceonce+Once.litmus
> > +++ b/tools/memory-model/litmus-tests/CoRR+poonceonce+Once.litmus
> > @@ -7,7 +7,9 @@ C CoRR+poonceonce+Once
> >   * reads from the same variable are ordered.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +}
> >  
> >  P0(int *x)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/CoRW+poonceonce+Once.litmus b/tools/memory-model/litmus-tests/CoRW+poonceonce+Once.litmus
> > index 4635739..5faae98 100644
> > --- a/tools/memory-model/litmus-tests/CoRW+poonceonce+Once.litmus
> > +++ b/tools/memory-model/litmus-tests/CoRW+poonceonce+Once.litmus
> > @@ -7,7 +7,9 @@ C CoRW+poonceonce+Once
> >   * a given variable and a later write to that same variable are ordered.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +}
> >  
> >  P0(int *x)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/CoWR+poonceonce+Once.litmus b/tools/memory-model/litmus-tests/CoWR+poonceonce+Once.litmus
> > index bb068c9..77c9cc9 100644
> > --- a/tools/memory-model/litmus-tests/CoWR+poonceonce+Once.litmus
> > +++ b/tools/memory-model/litmus-tests/CoWR+poonceonce+Once.litmus
> > @@ -7,7 +7,9 @@ C CoWR+poonceonce+Once
> >   * given variable and a later read from that same variable are ordered.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +}
> >  
> >  P0(int *x)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/CoWW+poonceonce.litmus b/tools/memory-model/litmus-tests/CoWW+poonceonce.litmus
> > index 0d9f0a9..85ef746 100644
> > --- a/tools/memory-model/litmus-tests/CoWW+poonceonce.litmus
> > +++ b/tools/memory-model/litmus-tests/CoWW+poonceonce.litmus
> > @@ -7,7 +7,9 @@ C CoWW+poonceonce
> >   * writes to the same variable are ordered.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +}
> >  
> >  P0(int *x)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/IRIW+fencembonceonces+OnceOnce.litmus b/tools/memory-model/litmus-tests/IRIW+fencembonceonces+OnceOnce.litmus
> > index e729d27..87aa900 100644
> > --- a/tools/memory-model/litmus-tests/IRIW+fencembonceonces+OnceOnce.litmus
> > +++ b/tools/memory-model/litmus-tests/IRIW+fencembonceonces+OnceOnce.litmus
> > @@ -10,7 +10,10 @@ C IRIW+fencembonceonces+OnceOnce
> >   * process?  This litmus test exercises LKMM's "propagation" rule.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/IRIW+poonceonces+OnceOnce.litmus b/tools/memory-model/litmus-tests/IRIW+poonceonces+OnceOnce.litmus
> > index 4b54dd6..f84022d 100644
> > --- a/tools/memory-model/litmus-tests/IRIW+poonceonces+OnceOnce.litmus
> > +++ b/tools/memory-model/litmus-tests/IRIW+poonceonces+OnceOnce.litmus
> > @@ -10,7 +10,10 @@ C IRIW+poonceonces+OnceOnce
> >   * different process?
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/ISA2+pooncelock+pooncelock+pombonce.litmus b/tools/memory-model/litmus-tests/ISA2+pooncelock+pooncelock+pombonce.litmus
> > index 094d58d..398f624 100644
> > --- a/tools/memory-model/litmus-tests/ISA2+pooncelock+pooncelock+pombonce.litmus
> > +++ b/tools/memory-model/litmus-tests/ISA2+pooncelock+pooncelock+pombonce.litmus
> > @@ -7,7 +7,12 @@ C ISA2+pooncelock+pooncelock+pombonce
> >   * (in P0() and P1()) is visible to external process P2().
> >   *)
> >  
> > -{}
> > +{
> > +	spinlock_t mylock;
> > +	int x;
> > +	int y;
> > +	int z;
> > +}
> >  
> >  P0(int *x, int *y, spinlock_t *mylock)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/ISA2+poonceonces.litmus b/tools/memory-model/litmus-tests/ISA2+poonceonces.litmus
> > index b321aa6..212a432 100644
> > --- a/tools/memory-model/litmus-tests/ISA2+poonceonces.litmus
> > +++ b/tools/memory-model/litmus-tests/ISA2+poonceonces.litmus
> > @@ -9,7 +9,11 @@ C ISA2+poonceonces
> >   * of the smp_load_acquire() invocations are replaced by READ_ONCE()?
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +	int z;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/ISA2+pooncerelease+poacquirerelease+poacquireonce.litmus b/tools/memory-model/litmus-tests/ISA2+pooncerelease+poacquirerelease+poacquireonce.litmus
> > index 025b046..7afd856 100644
> > --- a/tools/memory-model/litmus-tests/ISA2+pooncerelease+poacquirerelease+poacquireonce.litmus
> > +++ b/tools/memory-model/litmus-tests/ISA2+pooncerelease+poacquirerelease+poacquireonce.litmus
> > @@ -11,7 +11,11 @@ C ISA2+pooncerelease+poacquirerelease+poacquireonce
> >   * (AKA non-rf) link, so release-acquire is all that is needed.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +	int z;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/LB+fencembonceonce+ctrlonceonce.litmus b/tools/memory-model/litmus-tests/LB+fencembonceonce+ctrlonceonce.litmus
> > index 4727f5a..c8a93c7 100644
> > --- a/tools/memory-model/litmus-tests/LB+fencembonceonce+ctrlonceonce.litmus
> > +++ b/tools/memory-model/litmus-tests/LB+fencembonceonce+ctrlonceonce.litmus
> > @@ -11,7 +11,10 @@ C LB+fencembonceonce+ctrlonceonce
> >   * another control dependency and order would still be maintained.)
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/LB+poacquireonce+pooncerelease.litmus b/tools/memory-model/litmus-tests/LB+poacquireonce+pooncerelease.litmus
> > index 07b9904..2fa0295 100644
> > --- a/tools/memory-model/litmus-tests/LB+poacquireonce+pooncerelease.litmus
> > +++ b/tools/memory-model/litmus-tests/LB+poacquireonce+pooncerelease.litmus
> > @@ -8,7 +8,10 @@ C LB+poacquireonce+pooncerelease
> >   * to the other?
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/LB+poonceonces.litmus b/tools/memory-model/litmus-tests/LB+poonceonces.litmus
> > index 74c49cb..2107306 100644
> > --- a/tools/memory-model/litmus-tests/LB+poonceonces.litmus
> > +++ b/tools/memory-model/litmus-tests/LB+poonceonces.litmus
> > @@ -7,7 +7,10 @@ C LB+poonceonces
> >   * be prevented even with no explicit ordering?
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/MP+fencewmbonceonce+fencermbonceonce.litmus b/tools/memory-model/litmus-tests/MP+fencewmbonceonce+fencermbonceonce.litmus
> > index a273da9..e04b71b 100644
> > --- a/tools/memory-model/litmus-tests/MP+fencewmbonceonce+fencermbonceonce.litmus
> > +++ b/tools/memory-model/litmus-tests/MP+fencewmbonceonce+fencermbonceonce.litmus
> > @@ -8,7 +8,10 @@ C MP+fencewmbonceonce+fencermbonceonce
> >   * is usually better to use smp_store_release() and smp_load_acquire().
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/MP+onceassign+derefonce.litmus b/tools/memory-model/litmus-tests/MP+onceassign+derefonce.litmus
> > index 97731b4..18df682 100644
> > --- a/tools/memory-model/litmus-tests/MP+onceassign+derefonce.litmus
> > +++ b/tools/memory-model/litmus-tests/MP+onceassign+derefonce.litmus
> > @@ -10,8 +10,9 @@ C MP+onceassign+derefonce
> >   *)
> >  
> >  {
> > -y=z;
> > -z=0;
> > +	int x;
> > +	int *y=z;
> > +	int z=0;
> >  }
> >  
> >  P0(int *x, int **y)
> > diff --git a/tools/memory-model/litmus-tests/MP+polockmbonce+poacquiresilsil.litmus b/tools/memory-model/litmus-tests/MP+polockmbonce+poacquiresilsil.litmus
> > index 50f4d62..b1b1266 100644
> > --- a/tools/memory-model/litmus-tests/MP+polockmbonce+poacquiresilsil.litmus
> > +++ b/tools/memory-model/litmus-tests/MP+polockmbonce+poacquiresilsil.litmus
> > @@ -11,6 +11,8 @@ C MP+polockmbonce+poacquiresilsil
> >   *)
> >  
> >  {
> > +	spinlock_t lo;
> > +	int x;
> >  }
> >  
> >  P0(spinlock_t *lo, int *x)
> > diff --git a/tools/memory-model/litmus-tests/MP+polockonce+poacquiresilsil.litmus b/tools/memory-model/litmus-tests/MP+polockonce+poacquiresilsil.litmus
> > index abf81e7..867c75d 100644
> > --- a/tools/memory-model/litmus-tests/MP+polockonce+poacquiresilsil.litmus
> > +++ b/tools/memory-model/litmus-tests/MP+polockonce+poacquiresilsil.litmus
> > @@ -11,6 +11,8 @@ C MP+polockonce+poacquiresilsil
> >   *)
> >  
> >  {
> > +	spinlock_t lo;
> > +	int x;
> >  }
> >  
> >  P0(spinlock_t *lo, int *x)
> > diff --git a/tools/memory-model/litmus-tests/MP+polocks.litmus b/tools/memory-model/litmus-tests/MP+polocks.litmus
> > index 712a4fcd..63e0f67 100644
> > --- a/tools/memory-model/litmus-tests/MP+polocks.litmus
> > +++ b/tools/memory-model/litmus-tests/MP+polocks.litmus
> > @@ -11,7 +11,11 @@ C MP+polocks
> >   * to see all prior accesses by those other CPUs.
> >   *)
> >  
> > -{}
> > +{
> > +	spinlock_t mylock;
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y, spinlock_t *mylock)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/MP+poonceonces.litmus b/tools/memory-model/litmus-tests/MP+poonceonces.litmus
> > index 172f014..68180a4 100644
> > --- a/tools/memory-model/litmus-tests/MP+poonceonces.litmus
> > +++ b/tools/memory-model/litmus-tests/MP+poonceonces.litmus
> > @@ -7,7 +7,10 @@ C MP+poonceonces
> >   * no ordering at all?
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/MP+pooncerelease+poacquireonce.litmus b/tools/memory-model/litmus-tests/MP+pooncerelease+poacquireonce.litmus
> > index d52c684..19f3e68 100644
> > --- a/tools/memory-model/litmus-tests/MP+pooncerelease+poacquireonce.litmus
> > +++ b/tools/memory-model/litmus-tests/MP+pooncerelease+poacquireonce.litmus
> > @@ -8,7 +8,10 @@ C MP+pooncerelease+poacquireonce
> >   * pattern.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/MP+porevlocks.litmus b/tools/memory-model/litmus-tests/MP+porevlocks.litmus
> > index 72c9276..4ac189a 100644
> > --- a/tools/memory-model/litmus-tests/MP+porevlocks.litmus
> > +++ b/tools/memory-model/litmus-tests/MP+porevlocks.litmus
> > @@ -11,7 +11,11 @@ C MP+porevlocks
> >   * see all prior accesses by those other CPUs.
> >   *)
> >  
> > -{}
> > +{
> > +	spinlock_t mylock;
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y, spinlock_t *mylock)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/R+fencembonceonces.litmus b/tools/memory-model/litmus-tests/R+fencembonceonces.litmus
> > index 222a0b8..af9463b 100644
> > --- a/tools/memory-model/litmus-tests/R+fencembonceonces.litmus
> > +++ b/tools/memory-model/litmus-tests/R+fencembonceonces.litmus
> > @@ -9,7 +9,10 @@ C R+fencembonceonces
> >   * cause the resulting test to be allowed.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/R+poonceonces.litmus b/tools/memory-model/litmus-tests/R+poonceonces.litmus
> > index 5386f12..bcd5574e 100644
> > --- a/tools/memory-model/litmus-tests/R+poonceonces.litmus
> > +++ b/tools/memory-model/litmus-tests/R+poonceonces.litmus
> > @@ -8,7 +8,10 @@ C R+poonceonces
> >   * store propagation delays.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/S+fencewmbonceonce+poacquireonce.litmus b/tools/memory-model/litmus-tests/S+fencewmbonceonce+poacquireonce.litmus
> > index 1847982..c36341d 100644
> > --- a/tools/memory-model/litmus-tests/S+fencewmbonceonce+poacquireonce.litmus
> > +++ b/tools/memory-model/litmus-tests/S+fencewmbonceonce+poacquireonce.litmus
> > @@ -7,7 +7,10 @@ C S+fencewmbonceonce+poacquireonce
> >   * store against a subsequent store?
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/S+poonceonces.litmus b/tools/memory-model/litmus-tests/S+poonceonces.litmus
> > index 8c9c2f8..7775c23 100644
> > --- a/tools/memory-model/litmus-tests/S+poonceonces.litmus
> > +++ b/tools/memory-model/litmus-tests/S+poonceonces.litmus
> > @@ -9,7 +9,10 @@ C S+poonceonces
> >   * READ_ONCE(), is ordering preserved?
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/SB+fencembonceonces.litmus b/tools/memory-model/litmus-tests/SB+fencembonceonces.litmus
> > index ed5fff1..833cdfe 100644
> > --- a/tools/memory-model/litmus-tests/SB+fencembonceonces.litmus
> > +++ b/tools/memory-model/litmus-tests/SB+fencembonceonces.litmus
> > @@ -9,7 +9,10 @@ C SB+fencembonceonces
> >   * suffice, but not much else.)
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/SB+poonceonces.litmus b/tools/memory-model/litmus-tests/SB+poonceonces.litmus
> > index 10d5507..c92211e 100644
> > --- a/tools/memory-model/litmus-tests/SB+poonceonces.litmus
> > +++ b/tools/memory-model/litmus-tests/SB+poonceonces.litmus
> > @@ -8,7 +8,10 @@ C SB+poonceonces
> >   * variable that the preceding process reads.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/SB+rfionceonce-poonceonces.litmus b/tools/memory-model/litmus-tests/SB+rfionceonce-poonceonces.litmus
> > index 04a1660..84344b4 100644
> > --- a/tools/memory-model/litmus-tests/SB+rfionceonce-poonceonces.litmus
> > +++ b/tools/memory-model/litmus-tests/SB+rfionceonce-poonceonces.litmus
> > @@ -6,7 +6,10 @@ C SB+rfionceonce-poonceonces
> >   * This litmus test demonstrates that LKMM is not fully multicopy atomic.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/WRC+poonceonces+Once.litmus b/tools/memory-model/litmus-tests/WRC+poonceonces+Once.litmus
> > index 6a2bc12..4314947 100644
> > --- a/tools/memory-model/litmus-tests/WRC+poonceonces+Once.litmus
> > +++ b/tools/memory-model/litmus-tests/WRC+poonceonces+Once.litmus
> > @@ -8,7 +8,10 @@ C WRC+poonceonces+Once
> >   * test has no ordering at all.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/WRC+pooncerelease+fencermbonceonce+Once.litmus b/tools/memory-model/litmus-tests/WRC+pooncerelease+fencermbonceonce+Once.litmus
> > index e994725..554999c 100644
> > --- a/tools/memory-model/litmus-tests/WRC+pooncerelease+fencermbonceonce+Once.litmus
> > +++ b/tools/memory-model/litmus-tests/WRC+pooncerelease+fencermbonceonce+Once.litmus
> > @@ -10,7 +10,10 @@ C WRC+pooncerelease+fencermbonceonce+Once
> >   * is A-cumulative in LKMM.
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +}
> >  
> >  P0(int *x)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/Z6.0+pooncelock+poonceLock+pombonce.litmus b/tools/memory-model/litmus-tests/Z6.0+pooncelock+poonceLock+pombonce.litmus
> > index 415248f..265a95f 100644
> > --- a/tools/memory-model/litmus-tests/Z6.0+pooncelock+poonceLock+pombonce.litmus
> > +++ b/tools/memory-model/litmus-tests/Z6.0+pooncelock+poonceLock+pombonce.litmus
> > @@ -9,7 +9,12 @@ C Z6.0+pooncelock+poonceLock+pombonce
> >   * by CPUs not holding that lock.
> >   *)
> >  
> > -{}
> > +{
> > +	spinlock_t mylock;
> > +	int x;
> > +	int y;
> > +	int z;
> > +}
> >  
> >  P0(int *x, int *y, spinlock_t *mylock)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/Z6.0+pooncelock+pooncelock+pombonce.litmus b/tools/memory-model/litmus-tests/Z6.0+pooncelock+pooncelock+pombonce.litmus
> > index 10a2aa0..0c9aea8 100644
> > --- a/tools/memory-model/litmus-tests/Z6.0+pooncelock+pooncelock+pombonce.litmus
> > +++ b/tools/memory-model/litmus-tests/Z6.0+pooncelock+pooncelock+pombonce.litmus
> > @@ -8,7 +8,12 @@ C Z6.0+pooncelock+pooncelock+pombonce
> >   * seen as ordered by a third process not holding that lock.
> >   *)
> >  
> > -{}
> > +{
> > +	spinlock_t mylock;
> > +	int x;
> > +	int y;
> > +	int z;
> > +}
> >  
> >  P0(int *x, int *y, spinlock_t *mylock)
> >  {
> > diff --git a/tools/memory-model/litmus-tests/Z6.0+pooncerelease+poacquirerelease+fencembonceonce.litmus b/tools/memory-model/litmus-tests/Z6.0+pooncerelease+poacquirerelease+fencembonceonce.litmus
> > index 88e70b8..661f9aa 100644
> > --- a/tools/memory-model/litmus-tests/Z6.0+pooncerelease+poacquirerelease+fencembonceonce.litmus
> > +++ b/tools/memory-model/litmus-tests/Z6.0+pooncerelease+poacquirerelease+fencembonceonce.litmus
> > @@ -14,7 +14,11 @@ C Z6.0+pooncerelease+poacquirerelease+fencembonceonce
> >   * involving locking.)
> >   *)
> >  
> > -{}
> > +{
> > +	int x;
> > +	int y;
> > +	int z;
> > +}
> >  
> >  P0(int *x, int *y)
> >  {
> > 



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