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std.Target: Use v9 as the baseline CPU for sparc32.

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It is impossible to even build projects like glibc when targeting a generic
SPARC v8 CPU; LEON3 is effectively considered the baseline for `sparc-linux-gnu`
now, particularly due to it supporting a CASA instruction similar to the one in
SPARC v9. However, it's slightly incompatible with SPARC v9 due to having a
different ASI tag, so resulting binaries would not be portable to regular SPARC
CPUs. So, as the least bad option, make v9 the baseline for sparc32.
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Alex Rønne Petersen 2024-08-04 11:04:23 +02:00
parent 4ba9a6f44c
commit 27775f1a9e
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lib/std/Target.zig
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@ -1502,7 +1502,7 @@ pub const Cpu = struct {
.x86 => &x86.cpu.pentium4,
.nvptx, .nvptx64 => &nvptx.cpu.sm_20,
.s390x => &s390x.cpu.arch8,
.sparc => &sparc.cpu.v8,
.sparc => &sparc.cpu.v9, // glibc does not work with 'plain' v8.
.loongarch64 => &loongarch.cpu.loongarch64,
else => generic(arch),