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Re: [PATCH] Fix bootstrap with older and non-GCC host compilers
- From: Richard Biener <rguenther at suse dot de>
- To: Jakub Jelinek <jakub at redhat dot com>
- Cc: gcc-patches at gcc dot gnu dot org, Martin Jambor <mjambor at suse dot de>
- Date: Tue, 19 Jan 2016 16:08:29 +0100 (CET)
- Subject: Re: [PATCH] Fix bootstrap with older and non-GCC host compilers
- Authentication-results: sourceware.org; auth=none
- References: <alpine dot LSU dot 2 dot 11 dot 1601191518100 dot 31122 at t29 dot fhfr dot qr> <20160119143314 dot GO3017 at tucnak dot redhat dot com>
On Tue, 19 Jan 2016, Jakub Jelinek wrote:
> On Tue, Jan 19, 2016 at 03:19:17PM +0100, Richard Biener wrote:
> >
> > It also seems we're wrongly using values defined for the host while
> > looking at GIMPLE IL for the target.
> >
> > Bootstrap / regtest running on x86_64-unknown-linux-gnu.
> >
> > Ok?
> >
> > Richard.
> >
> > 2016-01-19 Richard Biener <rguenther@suse.de>
> >
> > * hsa-gen.c (get_memory_order_name): Use MEMMODEL_ constants
> > and name.
> > (get_memory_order): Likewise.
> >
> > Index: gcc/hsa-gen.c
> > ===================================================================
> > --- gcc/hsa-gen.c (revision 232561)
> > +++ gcc/hsa-gen.c (working copy)
> > @@ -4417,18 +4417,18 @@ get_memory_order_name (unsigned memmodel
> > {
> > switch (memmodel)
> > {
> > - case __ATOMIC_RELAXED:
> > - return "__ATOMIC_RELAXED";
> > - case __ATOMIC_CONSUME:
> > - return "__ATOMIC_CONSUME";
> > - case __ATOMIC_ACQUIRE:
> > - return "__ATOMIC_ACQUIRE";
> > - case __ATOMIC_RELEASE:
> > - return "__ATOMIC_RELEASE";
> > - case __ATOMIC_ACQ_REL:
> > - return "__ATOMIC_ACQ_REL";
> > - case __ATOMIC_SEQ_CST:
> > - return "__ATOMIC_SEQ_CST";
> > + case MEMMODEL_RELAXED:
> > + return "MEMMODEL_RELAXED";
> > + case MEMMODEL_CONSUME:
> > + return "MEMMODEL_CONSUME";
> > + case MEMMODEL_ACQUIRE:
> > + return "MEMMODEL_ACQUIRE";
> > + case MEMMODEL_RELEASE:
> > + return "MEMMODEL_RELEASE";
> > + case MEMMODEL_ACQ_REL:
> > + return "MEMMODEL_ACQ_REL";
> > + case MEMMODEL_SEQ_CST:
> > + return "MEMMODEL_SEQ_CST";
>
> The case changes are ok, though it is not handling various
> other memory models (MEMMOVED_SYNC_{ACQUIRE,RELEASE,SEQ_CST}).
> For the returned strings, that is used in user visible context (warning),
> so I think neither is ok, better use "relaxed", "consume", "acquire",
> "release", "acq_rel", "seq_cst" (and the rest are internals for __sync_
> builtins).
>
> > default:
> > return NULL;
> > }
> > @@ -4442,13 +4442,13 @@ get_memory_order (unsigned memmodel, loc
> > {
> > switch (memmodel)
> > {
> > - case __ATOMIC_RELAXED:
> > + case MEMMODEL_RELAXED:
> > return BRIG_MEMORY_ORDER_RELAXED;
> > - case __ATOMIC_ACQUIRE:
> > + case MEMMODEL_ACQUIRE:
> > return BRIG_MEMORY_ORDER_SC_ACQUIRE;
> > - case __ATOMIC_RELEASE:
> > + case MEMMODEL_RELEASE:
> > return BRIG_MEMORY_ORDER_SC_RELEASE;
> > - case __ATOMIC_ACQ_REL:
> > + case MEMMODEL_ACQ_REL:
> > return BRIG_MEMORY_ORDER_SC_ACQUIRE_RELEASE;
> > default:
> > HSA_SORRY_ATV (location,
>
> This LGTM (though I'm really surprised it doesn't have seq_cst,
> e.g. OpenMP #pragma omp atomic will be either relaxed, or seq_cst.
I'll defer the diagnostic name change to Martin then and commit the
following to unbreak the build.
Richard.
2016-01-19 Richard Biener <rguenther@suse.de>
* hsa-gen.c (get_memory_order_name): Use MEMMODEL_ constants
and name.
(get_memory_order): Likewise.
Index: gcc/hsa-gen.c
===================================================================
--- gcc/hsa-gen.c (revision 232564)
+++ gcc/hsa-gen.c (working copy)
@@ -4417,17 +4417,17 @@ get_memory_order_name (unsigned memmodel
{
switch (memmodel)
{
- case __ATOMIC_RELAXED:
+ case MEMMODEL_RELAXED:
return "__ATOMIC_RELAXED";
- case __ATOMIC_CONSUME:
+ case MEMMODEL_CONSUME:
return "__ATOMIC_CONSUME";
- case __ATOMIC_ACQUIRE:
+ case MEMMODEL_ACQUIRE:
return "__ATOMIC_ACQUIRE";
- case __ATOMIC_RELEASE:
+ case MEMMODEL_RELEASE:
return "__ATOMIC_RELEASE";
- case __ATOMIC_ACQ_REL:
+ case MEMMODEL_ACQ_REL:
return "__ATOMIC_ACQ_REL";
- case __ATOMIC_SEQ_CST:
+ case MEMMODEL_SEQ_CST:
return "__ATOMIC_SEQ_CST";
default:
return NULL;
@@ -4442,13 +4442,13 @@ get_memory_order (unsigned memmodel, loc
{
switch (memmodel)
{
- case __ATOMIC_RELAXED:
+ case MEMMODEL_RELAXED:
return BRIG_MEMORY_ORDER_RELAXED;
- case __ATOMIC_ACQUIRE:
+ case MEMMODEL_ACQUIRE:
return BRIG_MEMORY_ORDER_SC_ACQUIRE;
- case __ATOMIC_RELEASE:
+ case MEMMODEL_RELEASE:
return BRIG_MEMORY_ORDER_SC_RELEASE;
- case __ATOMIC_ACQ_REL:
+ case MEMMODEL_ACQ_REL:
return BRIG_MEMORY_ORDER_SC_ACQUIRE_RELEASE;
default:
HSA_SORRY_ATV (location,