[Bug tree-optimization/110176] wrong code at -Os and above on x86_64-linux-gnu

2023-06-08 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110176 Andrew Pinski changed: What|Removed |Added Status|UNCONFIRMED |NEW Ever confirmed|0

[Bug tree-optimization/110176] wrong code at -Os and above on x86_64-linux-gnu

2023-06-08 Thread pinskia at gcc dot gnu.org via Gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110176 --- Comment #1 from Andrew Pinski --- Fre turns: b.2_4 = b; _5 = b.2_4 == 0; _6 = (int) _5; _7 = _6 <= i_19; _8 = (int) _7; b = _8; Into: b.2_4 = b; _5 = b.2_4 == 0; _6 = (int) _5; b = 1; Which is wrong as _6 <= -1 is alway