https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109359
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Ever confirmed|0 |1 Last reconfirmed| |2023-03-31 Target Milestone|--- |12.3 Summary|Compile-time rounding of |[12/13 Regression] |double literal to float is |Compile-time rounding of |incorrect with |double literal to float is |-frounding-math |incorrect with | |-frounding-math Keywords| |needs-bisection, wrong-code Status|UNCONFIRMED |NEW --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> --- With -frounding-math: xs: .long -639366012 .long 1063214053 .long 536561674 .long 1071918432 without: xs: .long 989519663 .long 1059154689 it looks like we fail to convert the double constant to single precision and then end up outputting the double precision constants ... The C frontend works.