[llvm-dev] What can cause llc to throw an error for instruction numbering?

[Kaarthik Alagapan via llvm-dev]

Thank you for pointing that out Tim! I am going over the SetInstName function and about to edit the file to print out NumberedVals. I’ll also see if any of my modifications affect when LLVM starts a new block.

Regards,
Kaarthik.
On Jul 8, 2019, 3:39 PM -0400, Tim Northover <t.p.northover at gmail.com>, wrote:
On Mon, 8 Jul 2019 at 20:32, Krzysztof Parzyszek <kparzysz at quicinc.com> wrote:
The problem is that there are some unnamed values in the listing, that are not explicitly printed. In reality you have

I don't think that works as a complete explanation, but it does
strongly suggest another avenue to investigate: what if LLVM is
starting a new basic block after every instruction for some reason?
Then LLVM would think it had

define i32 @main(i32 %, i8** %1) {
%2:
%3 = alloca i32, align 4
%4:
%5 = alloca i8**, align 8
%6:
...

Watching NumberedVals would still reveal this (I think), but not
SetInstName. And it would suggest looking at any extra code that might
affect when LLVM starts a new block.

Cheers.

Tim.
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