On 27/04/12 22:30, Richard Henderson wrote:
We can perform a single-copy atomic load with an ldrexd insn.
If the load is all we care about, we need not pair this with
a strexd.
Ok?
r~
d-arm-ldi
* config/arm/arm.md (UNSPEC_LL): New.
* config/arm/sync.md
On 04/27/2012 10:30 PM, Richard Henderson wrote:
We can perform a single-copy atomic load with an ldrexd insn.
If the load is all we care about, we need not pair this with
a strexd.
Can we? It's good to know. I have had a long email exchange with
engineers at ARM, and they would not say that
On 30/04/12 09:51, Andrew Haley wrote:
On 04/27/2012 10:30 PM, Richard Henderson wrote:
We can perform a single-copy atomic load with an ldrexd insn.
If the load is all we care about, we need not pair this with
a strexd.
Can we? It's good to know. I have had a long email exchange with
On 04/30/2012 11:50 AM, Richard Earnshaw wrote:
On 30/04/12 09:51, Andrew Haley wrote:
On 04/27/2012 10:30 PM, Richard Henderson wrote:
We can perform a single-copy atomic load with an ldrexd insn.
If the load is all we care about, we need not pair this with
a strexd.
Can we? It's good to
We can perform a single-copy atomic load with an ldrexd insn.
If the load is all we care about, we need not pair this with
a strexd.
Ok?
r~
* config/arm/arm.md (UNSPEC_LL): New.
* config/arm/sync.md (atomic_loaddi, atomic_loaddi_1): New.
diff --git a/gcc/config/arm/arm.md
