Review Request (M): 7077312: Provide a CALL effect for instruct declaration in the ad file

Christian Thalinger christian.thalinger at
Tue Sep 6 05:42:13 PDT 2011

Looks good.  -- Christian

On Sep 6, 2011, at 1:54 PM, Roland Westrelin wrote:

> This add the ability to declare an instruct in the ad file as having the effect of a leaf runtime call:
> instruct divL_reg_reg(R0R1RegL dst, R2R3RegL src1, R0R1RegL src2) %{
>  match(Set dst (DivL src1 src2));
>  effect(CALL);
> This declares this instruct as killing or preserving a set of registers according to the calling convention. Useful for nodes that are implemented with actual runtime call.
> Roland.

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