[LLVMdev] Dynamic allocation of a 3D array in LLVM APIs?

[David Majnemer]

Something like the following should work:
  %Nx = call i32 @get_local_size(i32 0)
  %Ny = call i32 @get_local_size(i32 1)
  %Nz = call i32 @get_local_size(i32 2)
  %mul1 = mul nuw i32 %Ny, %Nx
  %mul2 = mul nuw i32 %Nz, %mul1
  %A = alloca i32, i32 %mul2, align 4

On Tue Apr 01 2014 at 4:57:44 PM, Paul Vario <paul.paul.mit at gmail.com>
wrote:

> Hi Fellows,
>
>     What's the best way to emit the following code in LLVM APIs:
>
>                %Nx = call i32 @get_local_size(i32 0)
>                %Ny = call i32 @get_local_size(i32 1)
>                %Nz = call i32 @get_local_size(i32 2)
>
>                %A = alloca [Nx x [ Ny x [Nz x i32]]], align64
>
>      It basically allocates a 3D dynamic array, where the 3D sizes are
> unknown at compile time. I am not sure if using alloca is the right
> direction? Any other alternatives?
>
> Best,
> Paul
>
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