Re: [PATCH] Speedup path discovery in predicate::use_cannot_happen

2022-08-23 Thread Richard Biener via Gcc-patches
On Tue, 23 Aug 2022, Aldy Hernandez wrote: > On Tue, Aug 23, 2022 at 2:16 PM Richard Biener wrote: > > > > The following reverts a hunk from r8-5789-g11ef0b22d68cd1 that > > made compute_control_dep_chain start from function entry rather > > than the immediate dominator of the source block of the

Re: [PATCH] Speedup path discovery in predicate::use_cannot_happen

2022-08-23 Thread Aldy Hernandez via Gcc-patches
On Tue, Aug 23, 2022 at 2:16 PM Richard Biener wrote: > > The following reverts a hunk from r8-5789-g11ef0b22d68cd1 that > made compute_control_dep_chain start from function entry rather > than the immediate dominator of the source block of the edge with > the undefined value on the PHI node. Rev

[PATCH] Speedup path discovery in predicate::use_cannot_happen

2022-08-23 Thread Richard Biener via Gcc-patches
The following reverts a hunk from r8-5789-g11ef0b22d68cd1 that made compute_control_dep_chain start from function entry rather than the immediate dominator of the source block of the edge with the undefined value on the PHI node. Reverting at that point does not reveal any testsuite FAIL, in parti