[llvm-dev] Clang for the PlayStation 2 (original) (raw)

Dan Ravensloft via llvm-dev llvm-dev at lists.llvm.org
Thu Sep 6 08:00:39 PDT 2018

On Mon, 3 Sep 2018 at 13:31, Tim Northover <t.p.northover at gmail.com> wrote:

So the next step is to debug where Mips is producing those TruncIntFP nodes. There'll be some constraint it's not checking or an unexpected node type, probably related to -msingle-float. I'm afraid I'm not sure what yet.

I'm reasonably sure the function producing that node is lowerFP_TO_SINT_STORE in lib/Target/Mips/MipsISelLowering.cpp.

The node before that function executes has an fp_to_sint node which seems to want to convert an i64 to an f32 which seems...rather odd to me, honestly. The PS2, for what it's worth, only has an i32 -> f32 instruction, so I think there's an impedance mismatch somewhere. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20180906/c3ca7ed0/attachment.html>

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