| author |  Alex Rønne Petersen <alex@alexrp.com> 2026-08-05 13:08:30+02:00 |
| committer | Alex Rønne Petersen <alex@alexrp.com> 2026-08-05 13:28:22+02:00 |
| log | 143767a05bae7247733b6f03b56d603080a83df7 |
| tree | 5fb6c2ecb7fcae1655a2c74416fd6598be97e2ca |
| parent | 01e5c1885684609d84c79135e716b33a1c3fd9a1 |
| signature |  Signed by SSH key SHA256:7B/LJ7bpR1eX8aCXSr4mtd5M45VMPKcx9zY8e95b5QM |
std.Target: bump baseline CPU for powerpc64-(freebsd,linux) to pwr8
Linux and FreeBSD usage on PowerPC broadly splits into two camps:
* Old Apple/Amiga hardware
* Modern IBM POWER hardware
In the first camp, we're talking hardware like the PowerPC 970 (2002) or even
older in some cases. In the second camp, most hardware still in use today is
POWER8 (2014) or newer.
I think it's safe to say that the first camp is in the minority, especially
since the open hardware platform that Raptor Computing Systems sells is based on
POWER9, and I expect that to be more interesting to PowerPC enthusiasts
nowadays.
Also, compiler support for the old hardware is poorly maintained. IBM themselves
only seem to care to support the newer POWER processors in the Linux kernel as
well as GCC and LLVM. We keep running into LLVM bugs when targeting those older
CPUs.1 files changed, 1 insertions(+), 0 deletions(-)
lib- std
lib/std/Target.zig+1
| ... | @@ -2081,6 +2081,7 @@ pub const Cpu = struct { | ... | @@ -2081,6 +2081,7 @@ pub const Cpu = struct { |
| 2081 | else => generic(arch), | 2081 | else => generic(arch), |
| 2082 | }, | 2082 | }, |
| 2083 | .powerpc64 => switch (os.tag) { | 2083 | .powerpc64 => switch (os.tag) { |
| 2084 | .linux, .freebsd => &powerpc.cpu.pwr8, | ||
| 2084 | .openbsd => &powerpc.cpu.pwr9, | 2085 | .openbsd => &powerpc.cpu.pwr9, |
| 2085 | else => generic(arch), | 2086 | else => generic(arch), |
| 2086 | }, | 2087 | }, |