llvm dev - Dec 2010 - [LLVMdev] example of language with vector as first class type

When you say vector in GCC, do you mean vector in the mathematical sense or
the low level array sense?

Leon



On Wed, Dec 15, 2010 at 11:06 AM, John McCall <rjmccall at apple.com>
wrote:
> On Dec 15, 2010, at 8:37 AM, Leon Sit wrote:
> > Does anyone know any example compiler where it has vector/matrix as
first
> class type like matlab using llvm? If not, does anyone have idea how that
> should be done on llvm?
>
> Any GCC-compatible frontend — i.e. llvm-gcc, clang, or dragonegg — has
> vectors as a first-class type.  I wouldn't exactly laud any of
GCC's various
> vector extensions as a sterling example of good language design, but if
> you're just looking for demonstrations of how to generate vector IR,
that's
> where I'd start.
>
> John.
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On Dec 15, 2010, at 9:08 AM, Leon Sit wrote:
> When you say vector in GCC, do you mean vector in the mathematical sense or
the low level array sense?
In the approximately mathematical sense of "the sort of object manipulated
by a processor with vector extensions", i.e. a generally small, fixed-size
tuple of integer or floating-point element type.  I don't mean the C++
resizable-array type.

John.

To state my objective again because I was unclear about it. I want to write
a interpretor/compiler that can handles mathematical vector/matrix with
linear algebra operation on llvm. Something like matlab/R. I am thinking at
a higher level like performing type, and shape inference on matrix/vector
type, unrolling the inner loop of matrix operation of full algebraic
expression instead of computing the terms eagerly. Do people think llvm is
suitable for this context?

Thanks.

On Wed, Dec 15, 2010 at 11:18 AM, John McCall <rjmccall at apple.com>
wrote:
> On Dec 15, 2010, at 9:08 AM, Leon Sit wrote:
> > When you say vector in GCC, do you mean vector in the mathematical
sense
> or the low level array sense?
>
> In the approximately mathematical sense of "the sort of object
manipulated
> by a processor with vector extensions", i.e. a generally small,
fixed-size
> tuple of integer or floating-point element type.  I don't mean the C++
> resizable-array type.
>
> John.
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