[Bug target/93605] GCC suboptimal tail call optimization in trivial function forwarding with __attribute__((noinline))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93605 Andrew Pinski changed: What|Removed |Added Resolution|--- |DUPLICATE Status|NEW |RESOLVED --- Comment #4 from Andrew Pinski --- Dup of bug 97607 which has the anlysis already. *** This bug has been marked as a duplicate of bug 97607 ***
[Bug target/93605] GCC suboptimal tail call optimization in trivial function forwarding with __attribute__((noinline))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93605 Nicholas Krause changed: What|Removed |Added CC||xerofoify at gmail dot com --- Comment #3 from Nicholas Krause --- I just tried with bool& as auto should just be a bool without a reference. Seems to be a issue with gcc assuming that it must move into the bool if not a ref in the function's signature. And it works for other targets as Andrew pointed out.
[Bug target/93605] GCC suboptimal tail call optimization in trivial function forwarding with __attribute__((noinline))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93605 --- Comment #2 from mike.k at digitalcarbide dot com --- Interestingly, changing `impl::func`'s signature from `bool v` to `auto&& v` fixes the issue. Changing it to `auto v` does not.
[Bug target/93605] GCC suboptimal tail call optimization in trivial function forwarding with __attribute__((noinline))
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93605 Andrew Pinski changed: What|Removed |Added Keywords||missed-optimization Target||x86_64-linux-gnu Status|UNCONFIRMED |NEW Last reconfirmed||2020-02-05 Component|rtl-optimization|target Ever confirmed|0 |1 --- Comment #1 from Andrew Pinski --- Must be a target specific issue. Aarch64 produces: _Z4funcbii: .LFB1: .cfi_startproc b _ZN4implL4funcEbii .cfi_endproc