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Code Activity

Explode atomic box ops to new atomic instructions

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* libguile/instructions.c (FOR_EACH_INSTRUCTION_WORD_TYPE): Add C8_S24
  word type.
* libguile/vm-engine.c (UNPACK_8_24): New helper.
  (atomic-scm-ref/immediate, atomic-scm-set!/immediate)
  (atomic-swap-scm!/immediate, atomic-scm-compare-and-swap!/immediate):
  New instructions.
  (make-atomic-box, atomic-box-ref, atomic-box-set!, atomic-box-swap!)
  (atomic-box-compare-and-swap!): Disable these ops.
* module/language/bytecode.scm (compute-instruction-arity): Add C8_S24
  support.
* module/system/vm/assembler.scm: Add C8_S24 support.  Export assemblers
  for new opcodes.
* module/system/vm/disassembler.scm (disassembler): Support C8_S24.
* module/language/cps/compile-bytecode.scm (compile-function): Replace
  old atomic-box assemblers with the new instructions.
* module/language/cps/effects-analysis.scm (annotation->memory-kind):
* module/language/cps/types.scm (annotation->type): Add cases for atomic
  boxes.  Mark as all memory kinds because atomic ops serialize memory
  accesses.
* module/language/tree-il/compile-cps.scm (make-atomic-box):
  (ensure-atomic-box, atomic-box-ref, atomic-box-set!):
  (atomic-box-swap!, atomic-box-compare-and-swap!): Explode these ops to
  more basic instructions.
* module/system/base/types/internal.scm (%tc7-atomic-box): Add forgotten
  export.
This commit is contained in:
Andy Wingo 2018-04-12 18:14:00 +02:00
parent b32d3cc6f7
commit dff85f6f9f
10 changed files with 174 additions and 54 deletions
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3
libguile/instructions.c
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@ -1,4 +1,4 @@
/* Copyright (C) 2001, 2009, 2010, 2011, 2012, 2013, 2017 Free Software Foundation, Inc.
/* Copyright (C) 2001, 2009-2013, 2017-2018 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
@ -47,6 +47,7 @@ SCM_SYMBOL (sym_bang, "!");
M(X8_S8_C8_S8) \
M(X8_S8_S8_C8) \
M(C8_C24) \
M(C8_S24) \
M(C32) /* Unsigned. */ \
M(I32) /* Immediate. */ \
M(A32) /* Immediate, high bits. */ \