Richard Sandiford writes:
>> @@ -758,6 +781,58 @@ (define_expand "cbranchcc4"
>>""
>> )
>>
>> +;; Emit a `CB (register)` or `CB (immediate)` instruction.
>> +(define_insn "aarch64_cb"
>> + [(set (pc) (if_then_else (match_operator 0 "aarch64_comparison_operator"
>> +
Karl Meakin writes:
> Add rules for lowering `cbranch4` to CBB/CBH/CB when CMPBR
> extension is enabled.
>
> gcc/ChangeLog:
>
> * config/aarch64/aarch64.md (cbranch4): emit CMPBR
> instructions if possible.
> (cbranch4): new expand rule.
> (aarch64_cb): likewise.
> (a
> On 7 May 2025, at 12:27, Karl Meakin wrote:
>
> Add rules for lowering `cbranch4` to CBB/CBH/CB when CMPBR
> extension is enabled.
>
> gcc/ChangeLog:
>
> * config/aarch64/aarch64.md (cbranch4): emit CMPBR
> instructions if possible.
> (cbranch4): new expand rule.
> (aarch64_cb): likewise.
>
Add rules for lowering `cbranch4` to CBB/CBH/CB when CMPBR
extension is enabled.
gcc/ChangeLog:
* config/aarch64/aarch64.md (cbranch4): emit CMPBR
instructions if possible.
(cbranch4): new expand rule.
(aarch64_cb): likewise.
(aarch64_cb): likewise.
