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author | Koichi Sasada <ko1@atdot.net> | 2019-11-15 17:49:49 +0900 |
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committer | Koichi Sasada <ko1@atdot.net> | 2019-11-18 10:16:11 +0900 |
commit | 71fee9bc720ba7a117062bf3f78b6086527b656c (patch) | |
tree | 85443e3fbe9cfc0676a807a327e12b814fb20bf5 /iseq.h | |
parent | 93ce4f1cd7c96f0fdbeebc87a9fa64d07cede729 (diff) | |
download | ruby-71fee9bc720ba7a117062bf3f78b6086527b656c.tar.gz |
vm_invoke_builtin_delegate with start index.
opt_invokebuiltin_delegate and opt_invokebuiltin_delegate_leave
invokes builtin functions with same parameters of the method.
This technique eliminate stack push operations. However, delegation
parameters should be completely same as given parameters.
(e.g. `def foo(a, b, c) __builtin_foo(a, b, c)` is okay, but
__builtin_foo(b, c) is not allowed)
This patch relaxes this restriction. ISeq has a local variables
table which includes parameters. For example, the method defined
as `def foo(a, b, c) x=y=nil`, then local variables table contains
[a, b, c, x, y]. If calling builtin-function with arguments which
are sub-array of the lvar table, use opt_invokebuiltin_delegate
instruction with start index. For example, `__builtin_foo(b, c)`,
`__builtin_bar(c, x, y)` is okay, and so on.
Diffstat (limited to 'iseq.h')
0 files changed, 0 insertions, 0 deletions