Re: Problem with tree pass pre

2015-08-31 Thread shmeel gutl
On 31-Aug-15 02:19 PM, Richard Biener wrote: On Mon, Aug 31, 2015 at 6:51 AM, shmeel gutl wrote: When dealing with an array with known values, pre will evaluate the first iteration of a loop over the elements. The code generator with then jump into the loop. This is at best increasing the size

Re: Problem with tree pass pre

2015-08-31 Thread Richard Biener
On Mon, Aug 31, 2015 at 6:51 AM, shmeel gutl wrote: > When dealing with an array with known values, pre will evaluate the first > iteration of a loop over the elements. The code generator with then jump > into the loop. This is at best increasing the size of the code. It also > creates inferior co

Problem with tree pass pre

2015-08-30 Thread shmeel gutl
When dealing with an array with known values, pre will evaluate the first iteration of a loop over the elements. The code generator with then jump into the loop. This is at best increasing the size of the code. It also creates inferior code when the hardware supports zero overhead loops. The at