-
Andreas Haas authored
The existing interface assumed that for atomic binop instructions, the value register and the result register are the same. However, for x64, this assumption is not always useful, and for platforms like arm, this assumption is even negative. The existing interface was originally introduced because ia32 lacks registers, and we wanted to avoid platform-specific code in liftoff-compiler.cc. However, by now the lack of registers on ia32 required us to use platform-specific code also in other places, so we can also use it for atomic binops and thereby enable a better code generation. R=clemensb@chromium.org Bug: v8:10108 Change-Id: If39cc5f49934422b632bb2a5793c7f5d5d2b65c0 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2150585Reviewed-by: Clemens Backes <clemensb@chromium.org> Commit-Queue: Andreas Haas <ahaas@chromium.org> Cr-Commit-Position: refs/heads/master@{#67173}
6210bc82