[PATCH] D139901: [BuildLibCalls][RISCV] Sign extend return value of bcmp on riscv64.

[Jessica Clarke via Phabricator via llvm-commits]

jrtc27 added a comment.

Hm, maybe not, GCC and Clang both seem to want to normalise the upper bits for dealing with an unsigned 32-bit return value being promoted to 64-bit, whether signed or unsigned... and the psABI document is really unclear on what on earth the convention is for return values in most respects. It's clear on parameters at least...


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https://reviews.llvm.org/D139901