On Thu, 2022-11-17 at 11:46 +0800, Jinyang He wrote:
> > So we do need an additional dbar for compare-and-exchange, but do
> > not
> > need it for a bare atomic exchange?
> Yes.
Ok, I just noticed we also don't use dbar in atomic_add etc.
I've adjusted the patch a little (in attachment): rewritte
On 2022/11/17 上午11:38, Xi Ruoyao wrote:
On Thu, 2022-11-17 at 10:55 +0800, Jinyang He wrote:
On 2022/11/17 上午9:39, Jinyang He wrote:
On 2022/11/16 下午7:46, Xi Ruoyao wrote:
On Wed, 2022-11-16 at 10:11 +0800, Jinyang He wrote:
+ return "%G6\\n\\t"
+ "1:\\n\\t"
+ "ll.\\t%0,%1\
On Thu, 2022-11-17 at 10:55 +0800, Jinyang He wrote:
> On 2022/11/17 上午9:39, Jinyang He wrote:
>
> > On 2022/11/16 下午7:46, Xi Ruoyao wrote:
> >
> > > On Wed, 2022-11-16 at 10:11 +0800, Jinyang He wrote:
> > >
> > > > > > + return "%G6\\n\\t"
> > > > > > + "1:\\n\\t"
> > > > > > +
On 2022/11/17 上午9:39, Jinyang He wrote:
On 2022/11/16 下午7:46, Xi Ruoyao wrote:
On Wed, 2022-11-16 at 10:11 +0800, Jinyang He wrote:
+ return "%G6\\n\\t"
+ "1:\\n\\t"
+ "ll.\\t%0,%1\\n\\t"
+ "and\\t%7,%0,%z3\\n\\t"
+ "or%i5\\t%7,%7,%5\\n\\t"
+ "sc.\\t%7,%1\
On 2022/11/16 下午7:46, Xi Ruoyao wrote:
On Wed, 2022-11-16 at 10:11 +0800, Jinyang He wrote:
+ return "%G6\\n\\t"
+ "1:\\n\\t"
+ "ll.\\t%0,%1\\n\\t"
+ "and\\t%7,%0,%z3\\n\\t"
+ "or%i5\\t%7,%7,%5\\n\\t"
+ "sc.\\t%7,%1\\n\\t"
+ "beqz\\t%7,1b\\n\\t";
Do
On Wed, 2022-11-16 at 10:11 +0800, Jinyang He wrote:
> > > + return "%G6\\n\\t"
> > > + "1:\\n\\t"
> > > + "ll.\\t%0,%1\\n\\t"
> > > + "and\\t%7,%0,%z3\\n\\t"
> > > + "or%i5\\t%7,%7,%5\\n\\t"
> > > + "sc.\\t%7,%1\\n\\t"
> > > + "beqz\\t%7,1b\\n\\t";
> > D
On 2022/11/15 下午10:21, Xi Ruoyao wrote:
On Tue, 2022-11-15 at 21:03 +0800, Jinyang He wrote:
gcc/ChangeLog:
* config/loongarch/sync.md:
Add atomic_cas_value_exchange_and_7 and fix atomic_exchange.
nit:
* config/loongarch/sync.md (atomic_cas_value_exchange_and_7):
New define_i
On Tue, 2022-11-15 at 21:03 +0800, Jinyang He wrote:
> gcc/ChangeLog:
>
> * config/loongarch/sync.md:
> Add atomic_cas_value_exchange_and_7 and fix atomic_exchange.
nit:
* config/loongarch/sync.md (atomic_cas_value_exchange_and_7):
New define_insn.
(atomic_exchange): Use
gcc/ChangeLog:
* config/loongarch/sync.md:
Add atomic_cas_value_exchange_and_7 and fix atomic_exchange.
gcc/testsuite/ChangeLog:
* gcc.target/loongarch/sync-1.c: New test.
---
gcc/config/loongarch/sync.md| 27 -
gcc/testsuite/gcc.target/loongarch/sync-1.c | 104
