== Progress == * Implementing GC sections support in binutils Wrote a patch to update some AARCH64 GOT and PLT symbol ref counts while sweeping sections. During "make ld-check" some tests are not running. Checking the issue.

Discussed with Matt and decided to use default gc_mark hook. Most ports care BFD_RELOC_VTABLE_INHERIT and BFD_RELOC_VTABLE_ENTRY relocs during gc section marking. Now these relocs are not supported in AARCH64.

* Analysis on jump threading in GCC Switch cases are not lowered in GCC till RTL expand stage. Looking at a patch on lowering switch to GIMPLE and see jump threading behaves.

Misc ------ * Attend tool chain weekly meet, and stand up call * Had a look at one x86_64 related GCC build error.

== Next week == * Continue Implementing GC sections support in binutils and test the patch. * Continue analysis on jump threading in GCC. Planning to look at Tree VRP as per Andrew pinski suggestion.