[Bug tree-optimization/113281] [11/12/13 Regression] Latent wrong code due to vectorization of shift reduction and missing promotions since r9-1590

2024-05-31 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113281 --- Comment #30 from GCC Commits --- The releases/gcc-13 branch has been updated by Richard Sandiford : https://gcc.gnu.org/g:2602b71103d5ef2ef86000cac832b31dad3dfe2b commit r13-8813-g2602b71103d5ef2ef86000cac832b31dad3dfe2b Author: Richard Sa

[Bug tree-optimization/113281] [11/12/13 Regression] Latent wrong code due to vectorization of shift reduction and missing promotions since r9-1590

2024-05-31 Thread rdapp at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113281 --- Comment #29 from Robin Dapp --- Just to document again: The test case should not be vectorized and at some point we will adjust the cost model so it is not going to be. I'd prefer to base that decision on real uarchs rather than adjust the

[Bug tree-optimization/113281] [11/12/13 Regression] Latent wrong code due to vectorization of shift reduction and missing promotions since r9-1590

2024-03-13 Thread juzhe.zhong at rivai dot ai via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113281 --- Comment #28 from JuzheZhong --- The original cost model I did work for all cases but with some middle-end changes the cost model failed. I don't have time to figure out what's going on here. Robin may be interested at it.

[Bug tree-optimization/113281] [11/12/13 Regression] Latent wrong code due to vectorization of shift reduction and missing promotions since r9-1590

2024-03-13 Thread patrick at rivosinc dot com via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113281 --- Comment #27 from Patrick O'Neill --- (In reply to Andrew Pinski from comment #26) > (In reply to Edwin Lu from comment #25) > > It's still persisting on trunk (at least for pr113281-1.c > > https://godbolt.org/z/M9EK44hKe) > > I looked into

[Bug tree-optimization/113281] [11/12/13 Regression] Latent wrong code due to vectorization of shift reduction and missing promotions since r9-1590

2024-03-13 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113281 --- Comment #26 from Andrew Pinski --- (In reply to Edwin Lu from comment #25) > It's still persisting on trunk (at least for pr113281-1.c > https://godbolt.org/z/M9EK44hKe) I looked into what the vectorizer produces: vect__22.13_31 = (vector

[Bug tree-optimization/113281] [11/12/13 Regression] Latent wrong code due to vectorization of shift reduction and missing promotions since r9-1590

2024-03-13 Thread ewlu at rivosinc dot com via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113281 Edwin Lu changed: What|Removed |Added CC||ewlu at rivosinc dot com --- Comment #25 fro

[Bug tree-optimization/113281] [11/12/13 Regression] Latent wrong code due to vectorization of shift reduction and missing promotions since r9-1590

2024-01-31 Thread jakub at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113281 Jakub Jelinek changed: What|Removed |Added Priority|P1 |P2 Target Milestone|14.0