[llvm] [AArch64, ELF] Allow implicit $d/$x at section beginning (PR #99718)

Fangrui Song via llvm-commits llvm-commits at lists.llvm.org
Fri Jul 19 16:56:53 PDT 2024


MaskRay wrote:

The new option "optimize-mapping-symbols" is for llc/llvm-mc/etc. `clang -mllvm -optimize-mapping-symbols` does not get the option. Another patch will be needed to enable a `-Wa,` option, similar to #97378 (CREL).

It's desirable to coordinate with the GNU binutils project on the naming of this option.

It's worth noting that the `EMS_A64` start state modification for text sections currently deviates from the standard (https://github.com/ARM-software/abi-aa/issues/274), but could become compliant when the ABI is updated.


https://github.com/llvm/llvm-project/pull/99718


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