GHA macOS: Try enabling bootstrap stage again #4912
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And the latest stable LDC release as first host compiler.
…TO on arm64 due to 'LLVM ERROR: Unsupported stack probing method' when linking ldc2 (apparently from bitcode files compiled with older Apple clang)
This reverts commit 7ca007b.
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Okay, looks like we could re-enable the bootstrap stage on macOS - at the cost of disabling mimalloc and C++ LTO for the arm64 package (no costs for the x86_64 one). That setup survived 15 consecutive CI job runs on each arch, and in my previous attempts last time, I've only seen very few CI job runs which would NOT show at least one 'Pure virtual function called!' error (as they are sporadic, not deterministic). The only real improvement (when mixing LLVM versions) from last time is that I haven't seen any sporadic compiler crashes (during unwinding) for |
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And the latest stable LDC release as first host compiler.