issue-6f72bf0fef73cc5c4e4578ef439d0d2ae730d2a0.yaml

--- !ditz.rubyforge.org,2008-03-06/issue 
title: implement sanity limits for temp regs, constants, and inner funcs
desc: |-
  The current compiler cannot handle temp reg or const overflows.  For instance,
  if a constant number is above 255, it cannot be used with the three operand
  bytecode instructions but must be coerced into a temporary register first.
  
  The first step is to ensure no overflows occur, i.e. the compiler refuses to
  emit invalid code.  Later, better constant / temporary register 8-bit overflow
  handling can be implemented.
type: :task
component: duk
release: v0.2
reporter: sva <sami.vaarala@iki.fi>
status: :closed
disposition: :fixed
creation_time: 2013-02-26 12:47:20.878984 Z
references: []

id: 6f72bf0fef73cc5c4e4578ef439d0d2ae730d2a0
log_events: 
- - 2013-02-26 12:48:13.690994 Z
  - sva <sami.vaarala@iki.fi>
  - created
  - |-
    Before this fix, test-dev-bug-const-overflow.js caused a valgrind caused
    a (justified) valgrind whine, when constant numbers went over 8 bits and
    caused invalid opcodes to be emitted (constant accesses are then confused
    with register accesses).
- - 2013-02-26 14:03:39.192399 Z
  - sva <sami.vaarala@iki.fi>
  - closed with disposition fixed
  - ""