3fd0d22d74
https://github.com/llvm/llvm-project/pull/134202 removed support for `sym@page-offset` in instruction operands. This change is generally reasonable since subtracting an offset from a symbol typically doesn’t make sense for Mach-O due to its .subsections_via_symbols mechanism, which treats them as separate atoms. However, BoringSSL relies on a temporary symbol with a negative offset, which can be meaningful when the symbol and the referenced location are within the same atom. ``` ../../third_party/boringssl/src/gen/bcm/p256-armv8-asm-apple.S:1160:25: error: unexpected token in argument list adrp x23,Lone_mont@PAGE-64 ``` It's worth noting that expressions involving @ can be complex and brittle in MCParser, and much of the Mach-O @ offsets remains under-tested. * Allow default argument for parsePrimaryExpr. The argument, used by the niche llvm-ml, should not require other targets to adapt.
The LLVM Compiler Infrastructure
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