On Thu, Aug 11, 2016 at 04:35:51PM +, Bin Cheng wrote:
> 2016-08-11 Bin Cheng
>
> PR tree-optimization/72817
> PR tree-optimization/73450
> * gcc.dg/tree-ssa/pr72817.c: New test.
> * gcc.dg/tree-ssa/pr73450.c: New test.
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/t
On Thu, Aug 11, 2016 at 6:35 PM, Bin Cheng wrote:
> Hi,
> I made a mistake when improving loop niter analysis for NE_EXPR exit
> condition.
> It can results in wrong code as reported in PR72817/PR73450. In previous
> patch,
> it simplifies below condition:
> base <= FINAL ; step > 0
Hi,
I made a mistake when improving loop niter analysis for NE_EXPR exit condition.
It can results in wrong code as reported in PR72817/PR73450. In previous
patch,
it simplifies below condition:
base <= FINAL ; step > 0
base >= FINAL ; step < 0
into:
base - st
