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000843
2016 Jan 07
3
BPF backend with vector operations - some strange error
Hello.
I've tried to add some simple arithmetic vector operations to the BPF backend
available in the LLVM repo. Because I added in BPFRegisterInfo.td another RegisterClass
(taken from the Mips backend):
def MSA128W: RegisterClass<"BPF", [v2i64, v2f64], 128,
(sequence "W%u", 0, 31)>;
in order to support vector for example, ADD
2016 Jun 02
2
BPF backend with vector operations - error "Could not infer all types in, pattern!"
...llo.
> (WRONG: I solved this issue (from the previous email).)
>
> Got inspired from http://comments.gmane.org/gmane.comp.compilers.llvm.devel/73619,
> (also https://groups.google.com/forum/#!topic/llvm-dev/LfltBGG9ru0),
> http://lists.llvm.org/pipermail/llvm-dev/2007-April/008843.html
>
> What I did was to edit ConnexInstrInfo.td and replaced all occurrences:
> PatLeaf<(imm)
> %(which were ambiguous since the variable name ("in dag operator") does not have a
> type and this poses issues to the Type inference algorithm, since...