Raymond Toy pushed to branch issue-294-xoroshiro-lisp-assem-routine at cmucl / cmucl

Commits:

• 1ec83248
  by Raymond Toy at 2024-04-01T17:28:35-07:00

  Change the registers used for state, r1, and r0
  
  These registers show that in `xoroshiro-gen`, all the registers are in
  the right place so we don't need to do any additional moves.
  
  This is a nice micro-optimization.
  

1 changed file:

• src/assembly/x86/arith.lisp

Changes:

    (:policy :fast-safe)

    (:arg-types simple-array-double-float)

    (:result-types unsigned-num unsigned-num))

-  ((:arg state descriptor-reg eax-offset)

-   (:res r1 unsigned-reg edx-offset)

+  ((:arg state descriptor-reg edx-offset)

+   (:res r1 unsigned-reg ecx-offset)

    (:res r0 unsigned-reg ebx-offset)

    (:temp s0 double-reg xmm0-offset)

    (:temp s1 double-reg xmm1-offset)