> From: Andrew Pinski <[email protected]> > Sent: Thursday, May 21, 2026 9:58 AM > > On Tue, May 19, 2026 at 10:09 PM Haochen Jiang > <[email protected]> wrote: > > > > On Linux/x86_64, > > > > acfdad706d8acca6c4ed6ef3b63c2e02f1c47881 is the first bad commit > > commit acfdad706d8acca6c4ed6ef3b63c2e02f1c47881 > > Author: Nathan Myers <[email protected]> > > Date: Fri Apr 3 23:55:39 2026 -0400 > > > > libstdc++: Use allocate_at_least in vector, string (P0401) [PR118030] > > > > caused > > > > FAIL: g++.dg/opt/shrink-wrapping-vector-1.C -std=gnu++98 scan-rtl-dump > pro_and_epilogue "Performing shrink-wrapping" > > I filed https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125400 for the > missed optimization which is causing the missed shrink wrapping. > If I can figure out how to xfail it for C++98 only I will unless > someone beats me to it. Note It fails on all the specified targets in > the testcase as it is generic issue. > The interesting thing is that I don't know why, even before this commit, this test seems to be failing under my env. I suppose my env could corrupt for one commit but should not corrupt under each commit build.
XFAIL is a good idea since this is supposed to fail. Thx, Haochen
