[Bug tree-optimization/105596] Loop counter widened to 128-bit unnecessarily

2022-05-16 Thread rguenth at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105596 Richard Biener changed: What|Removed |Added Last reconfirmed||2022-05-16 Known to fail|

[Bug tree-optimization/105596] Loop counter widened to 128-bit unnecessarily

2022-05-13 Thread peter at cordes dot ca via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105596 --- Comment #1 from Peter Cordes --- https://godbolt.org/z/aoG55T5Yq gcc -O3 -m32 has the same problem with unsigned long long total and unsigned i. Pretty much identical instruction sequences in the loop for all 3 versions, doing add/adc to