[Bug tree-optimization/102364] [12 Regression] wrong code at -O1 and above on x86_64-linux-gnu since r12-3136-g3673dcf6d6baeb67

2021-09-17 Thread marxin at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102364 Martin Liška changed: What|Removed |Added Resolution|--- |DUPLICATE Status|NEW

[Bug tree-optimization/102364] [12 Regression] wrong code at -O1 and above on x86_64-linux-gnu since r12-3136-g3673dcf6d6baeb67

2021-09-16 Thread guojiufu at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102364 --- Comment #3 from Jiu Fu Guo --- We may be able to mark this as a duplicate of PR100740/PR102131.

[Bug tree-optimization/102364] [12 Regression] wrong code at -O1 and above on x86_64-linux-gnu since r12-3136-g3673dcf6d6baeb67

2021-09-16 Thread guojiufu at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102364 --- Comment #2 from Jiu Fu Guo --- This is also the case that two ivs are combined into inaccurate step: "{3,+,1} < {11,+,2}" was transformed to "{3,+,-1} < {11,+,0}". The new condition is not same with the original one.

[Bug tree-optimization/102364] [12 Regression] wrong code at -O1 and above on x86_64-linux-gnu since r12-3136-g3673dcf6d6baeb67

2021-09-16 Thread rguenth at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102364 Richard Biener changed: What|Removed |Added Keywords||wrong-code Priority|P3

[Bug tree-optimization/102364] [12 Regression] wrong code at -O1 and above on x86_64-linux-gnu since r12-3136-g3673dcf6d6baeb67

2021-09-16 Thread marxin at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102364 Martin Liška changed: What|Removed |Added See Also||https://gcc.gnu.org/bugzill

[Bug tree-optimization/102364] [12 Regression] wrong code at -O1 and above on x86_64-linux-gnu since r12-3136-g3673dcf6d6baeb67

2021-09-16 Thread marxin at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102364 Martin Liška changed: What|Removed |Added CC||guojiufu at gcc dot gnu.org,