diff options
| author | Paul Eggert <eggert@cs.ucla.edu> | 2016-08-09 00:37:40 -0700 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2016-08-09 01:31:22 -0700 |
| commit | 644fc17b9ae181174a842e3876e887666d505666 (patch) | |
| tree | 25fd8d1b3e1a32753d3db759d0909acbc2b12e77 /etc | |
| parent | cb71a119f7231984e010cc28ef33854721036a0f (diff) | |
Remove interpreter’s byte stack
This improves performance overall on my benchmark on x86-64,
since the interpreted program-counter resides in a machine
register rather than in RAM.
* etc/DEBUG, src/.gdbinit: Remove xbytecode GDB command, as there
is no longer a byte stack to decode.
* src/bytecode.c (struct byte_stack, byte_stack_list)
(relocate_byte_stack): Remove. All uses removed.
(FETCH): Simplify now that pc is now local (typically, in a
register) and no longer needs to be relocated.
(CHECK_RANGE): Remove. All uses now done inline, in a different way.
(BYTE_CODE_QUIT): Remove; now done by op_relative_branch.
(exec_byte_code): Allocate a copy of the function’s bytecode,
so that there is no problem if GC moves it.
* src/lisp.h (struct handler): Remove byte_stack member.
All uses removed.
(SAFE_ALLOCA_LISP_EXTRA): New macro, a generalization of
SAFE_ALLOCA_LISP.
(SAFE_ALLOCA_LISP): Use it.
Diffstat (limited to 'etc')
| -rw-r--r-- | etc/DEBUG | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -282,7 +282,7 @@ type. Here are these commands: xbufobjfwd xkbobjfwd xbuflocal xbuffer xsymbol xstring xvector xframe xwinconfig xcompiled xcons xcar xcdr xsubr xprocess xfloat xscrollbar xchartable xsubchartable xboolvector xhashtable xlist xcoding - xcharset xfontset xfont xbytecode + xcharset xfontset xfont Each one of them applies to a certain type or class of types. (Some of these types are not visible in Lisp, because they exist only |