[llvm-dev] [RFC] arm64_32: upstreaming ILP32 support for AArch64 (original) (raw)

Matt Arsenault via llvm-dev llvm-dev at lists.llvm.org
Fri Feb 1 12:35:46 PST 2019

On Feb 1, 2019, at 3:24 PM, Tim Northover <t.p.northover at gmail.com> wrote:

The difficulty I'm seeing is that we need GEP to be lowered to i64 arithmetic, but that happens in SelectionDAGBuilder before the target has any real opportunity to override anything. Once the GEP has been converted to DAG, the critical information is already gone and we just have i32 ADD/MUL trees.

Oh right, you don’t have the addrspace in the input.

I have long wanted a way for targets to take over the GEP expansion which may help you? We’ll need that for non-integral pointer support anyway.

-Matt -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20190201/3026fbeb/attachment.html>

More information about the llvm-dev mailing list