[pull] master from ruby:master#129
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pull[bot] merged 9 commits intoturkdevops:masterfrom Jul 29, 2025
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Previously, ZJIT miscompiled the following because of native SP
interference.
def a(n1,n2,n3,n4,n5,n6,n7,n8) = [n8]
a(0,0,0,0,0,0,0, :ok)
Commented problematic disassembly:
; call rb_ary_new_capa
mov x0, #1
mov x16, #0x1278
movk x16, #0x4bc, lsl #16
movk x16, #1, lsl #32
blr x16
; call rb_ary_push
mov x1, x0
str x1, [sp, #-0x10]! ; c_push() from alloc_regs()
mov x0, x1 ; arg0, the array
ldur x1, [sp] ; meant to be arg1=n8, but sp just moved!
mov x16, #0x3968
movk x16, #0x4bc, lsl #16
movk x16, #1, lsl #32
blr x16
Since the frame pointer stays constant in the body of the function,
static offsets based on it don't run the risk of being invalidated by SP
movements.
Pass the registers to preserve through Insn::FrameSetup. This allows ARM
to use STP and waste no gaps between EC, SP, and CFP.
x86 now preserves and restores RBP since we use it as the frame pointer.
Since all arches now have a frame pointer, remove offset based SP
movement in the epilogue and restore registers using the frame pointer.
This implements similar fast-path guard type checks as YJIT.
While Integer can technically be subclassed, instances of subclasses cannot be created. Remove it from the type lattice.
They can be subclassed but new instances cannot be created.
Adds a link to the GitHub Releases page for this gem consistent with other gems in the Ruby organization. Existing examples include: - [json](https://github.com/ruby/json/blob/master/json.gemspec) - [ostruct](https://github.com/ruby/ostruct/blob/master/ostruct.gemspec) ruby/tsort@8086bb33bc
hash.c compiles just fine on HASH_DEBUG without including internal/gc.h.
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