[Bug regression/111709] [13 Regression] Miscompilation of sysdeps/ieee754/dbl-64/s_fma.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111709 --- Comment #10 from dave.anglin at bell dot net --- On 2023-10-06 3:50 a.m., rguenth at gcc dot gnu.org wrote: > Does it work on trunk? No. Test results with gcc trunk are identical to with Debian gcc-13. Tried just rebuilding s_fma.c, and a full build and check.
[Bug regression/111709] [13 Regression] Miscompilation of sysdeps/ieee754/dbl-64/s_fma.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111709 Richard Biener changed: What|Removed |Added Target Milestone|--- |13.3 --- Comment #9 from Richard Biener --- Does it work on trunk?
[Bug regression/111709] [13 Regression] Miscompilation of sysdeps/ieee754/dbl-64/s_fma.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111709 --- Comment #8 from joseph at codesourcery dot com --- Typically these sorts of issues result from floating-point operations being moved past environment manipulation (fesetround, feupdateenv, feholdexcept, etc.) - in either direction. This might be a compiler issue, or it might well be a bug in the glibc function implementation (insufficient use of math_opt_barrier / math_force_eval to prevent such movement). If the latter, make sure to fix it in all similar implementations of fma functions, not just the dbl-64 one.
[Bug regression/111709] [13 Regression] Miscompilation of sysdeps/ieee754/dbl-64/s_fma.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111709 John David Anglin changed: What|Removed |Added CC||jsm28 at gcc dot gnu.org --- Comment #7 from John David Anglin --- Joseph, is there a way to simplify the glibc test to the failing cases? Maybe you have a clue as to what has changed.
[Bug regression/111709] [13 Regression] Miscompilation of sysdeps/ieee754/dbl-64/s_fma.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111709 --- Comment #6 from John David Anglin --- Created attachment 56062 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56062=edit Diff between s_fma_12.s and s_fma_13.s
[Bug regression/111709] [13 Regression] Miscompilation of sysdeps/ieee754/dbl-64/s_fma.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111709 --- Comment #5 from John David Anglin --- Created attachment 56061 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56061=edit non pic .s file for s_fma.c generated using gcc-13 without debug info
[Bug regression/111709] [13 Regression] Miscompilation of sysdeps/ieee754/dbl-64/s_fma.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111709 --- Comment #4 from John David Anglin --- Created attachment 56060 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56060=edit non pic .s file for s_fma.c generated using gcc-12 without debug info
[Bug regression/111709] [13 Regression] Miscompilation of sysdeps/ieee754/dbl-64/s_fma.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111709 --- Comment #3 from John David Anglin --- Created attachment 56059 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56059=edit .s file for s_fma.c generated using gcc-13
[Bug regression/111709] [13 Regression] Miscompilation of sysdeps/ieee754/dbl-64/s_fma.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111709 --- Comment #2 from John David Anglin --- Created attachment 56058 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56058=edit .s file for s_fma.c generated using gcc-12
[Bug regression/111709] [13 Regression] Miscompilation of sysdeps/ieee754/dbl-64/s_fma.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111709 --- Comment #1 from John David Anglin --- Created attachment 56057 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56057=edit Preprocessed source generated using gcc-13
