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Add peephole optimizer for newarray(X)/expandarray(X, 0) -> opt_reverse(X)

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This renames the reverse instruction to opt_reverse, since now it
is only added by the optimizer.  Then it uses as a more general
form of swap.  This optimizes multiple assignment in the popped
case with more than two elements.
This commit is contained in:
Jeremy Evans 2022-07-20 12:28:48 -07:00
parent d9167491db
commit 5089b6acc7
Notes: git 2022-08-10 14:20:08 +09:00
2 changed files with 11 additions and 2 deletions
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2
insns.def
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@ -599,7 +599,7 @@ swap
/* reverse stack top N order. */
DEFINE_INSN
reverse
opt_reverse
(rb_num_t n)
(...)
(...)