[PATCH] D106445: [amdgpu] Add 64-bit PC support when expanding unconditional branches.

[Michael Liao via Phabricator via llvm-commits]

hliao added a comment.

This change revises the offset calculation, not only for 64-bit support but also for the removal of the assumption in AMDGPUMCInstLower::getLongBranchBlockExpr in the preparation to handle the case where there's no scavenged register when expanding an unconditional branch. In that case, s_getpc follows a code sequence spilling an SGPR pair. But, that sequence has a variable code length.


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  https://reviews.llvm.org/D106445/new/

https://reviews.llvm.org/D106445