Hi, I'm new in gcc, and maybe misunderstand the constraint modifier '+'.
As the internal document says, '+' means an inout parameter. In my
mind, it means the instruction both reads and writes the pseudo
register.
Assuming I have a pattern like:
(define_insn "lssu"
[(set (match_operand:m1 0 ..
On Sun, Nov 4, 2012 at 2:13 PM, Martin Jambor wrote:
> Hi,
>
> On Sat, Nov 03, 2012 at 09:01:53AM +, Yangyueming wrote:
>> Hi, all
>>
>> I do the research of min max instructions recently. I find it is related
>> with phiopt.
>>
>> case1:
>> int foo(short a ,short b)
>> {
>> if (a < b)
>>
On Mon, Nov 5, 2012 at 5:32 AM, Martin Jambor wrote:
> Hi,
>
> On Sun, Nov 04, 2012 at 09:32:48PM -0800, Handong Ye wrote:
>> On Sun, Nov 4, 2012 at 2:13 PM, Martin Jambor wrote:
>> > On Sat, Nov 03, 2012 at 09:01:53AM +, Yangyueming wrote:
>> >> Hi, all
