Re: [PATCH 2/2] ifcvt: unfixed testcase for 2nd issue within PR tree-optimization/84178

On Wed, Mar 7, 2018 at 7:56 PM, David Malcolm wrote: > Here's a testcase for the 2nd issue within PR tree-optimization/84178. > > With -03 -fno-tree-forwprop, trunk and gcc 7 segfault inside update_ssa > when called from version_loop_for_if_conversion when a loop is versioned. > > During loop_vers

[PATCH 2/2] ifcvt: unfixed testcase for 2nd issue within PR tree-optimization/84178

Here's a testcase for the 2nd issue within PR tree-optimization/84178. With -03 -fno-tree-forwprop, trunk and gcc 7 segfault inside update_ssa when called from version_loop_for_if_conversion when a loop is versioned. During loop_version, some blocks are duplicated, and this can duplicate SSA name