https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66120
Alexander Monakov changed:
What|Removed |Added
Status|NEW |RESOLVED
CC|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66120
Bug 66120 depends on bug 69663, which changed state.
Bug 69663 Summary: [ARM] Implement overflow arithmetic standard names
{u,}{add,sub,mul}v4
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69663
What|Removed |Ad
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66120
--- Comment #4 from Richard Earnshaw ---
Mul doesn't produce useful overflow bits when the flags are set. We could do
negv3.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66120
--- Comment #3 from Richard Earnshaw ---
That's what I meant. Still can't find any info on them in md.texi, though!
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66120
--- Comment #2 from Jakub Jelinek ---
Not those, but addv4 and subv4 instead (perhaps {,u}mulv4 if
the ISA detects multiplication overflows, also there is negv3).
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66120
Richard Earnshaw changed:
What|Removed |Added
Target|arm*-*gnueabi |arm
Priority|P3
