Re: [PATCH rs6000] Fix PR target/84369: gcc.dg/sms-10.c fails on Power9

2019-04-16 Thread Segher Boessenkool
Hi Pat, On Mon, Apr 15, 2019 at 03:43:26PM -0500, Pat Haugen wrote: > As pointed out in the PR, the test is failing because a store->load > dependency is reporting zero cost. Fixed by leaving existing costs as is > (i.e. cost for update forms), and just adding a simple bypass for store->load >

[PATCH rs6000] Fix PR target/84369: gcc.dg/sms-10.c fails on Power9

2019-04-15 Thread Pat Haugen
As pointed out in the PR, the test is failing because a store->load dependency is reporting zero cost. Fixed by leaving existing costs as is (i.e. cost for update forms), and just adding a simple bypass for store->load dependencies. Bootstrap/regtest on powerpc64le (Power9) with no new regressio