// could self-deadlock if its stack grows with the lock held.
	lock mutex

	pages pageAlloc // page allocation data structure

	sweepgen uint32 // sweep generation, see comment in mspan; written during STW

	// allspans is a slice of all mspans ever created. Each mspan
	// appears exactly once.
	//
	// The memory for allspans is manually managed and can be

C7.555,3.722 7.939,2.637 7.735,1.5 L12.263,1.5 C12.072,2.637 12.441,3.71 13.314,4.22 C14.206,4.73 15.343,4.516 16.225,3.794 L18.487,7.714 C17.404,8.117 16.661,8.988 16.67,10.009 C16.672,11.018 17.415,11.88 18.488,12.285 L18.488,12.285 Z"/></svg>',comment:'<svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg"><path d="M6,18.71 L6,14 L1,14 L1,1 L19,1 L19,14 L10.71,14 L6,18.71 L6,18.71 Z M2,13 L7,13 L7,16.29 L10.29,13 L18,13 L18,2 L2,2 L2,13 L2,13 Z"/></svg>',commenting:'<svg...

				return nil

			},
			fn: func(err error) error {
				isEOF := err == io.EOF
				waitForBodyRead <- isEOF
				if isEOF {
					<-eofc // see comment above eofc declaration
				} else if err != nil {
					if cerr := pc.canceled(); cerr != nil {
						return cerr
					}
				}
				return err
			},
		}

		resp.Body = body

	x := &abi.Type{
		Align_: goarch.PtrSize,
		// Don't add spill space here; it's only necessary in
		// reflectcall's frame, not in the allocated frame.
		// TODO(mknyszek): Remove this comment when register
		// spill space in the frame is no longer required.
		Size_:    align(abid.retOffset+abid.ret.stackBytes, goarch.PtrSize),
		PtrBytes: uintptr(abid.stackPtrs.n) * goarch.PtrSize,
	}

// cases (-0 and NaN). We use two hardware ops organized just right to make the
// result come out how we want it. See https://github.com/golang/go/issues/59488#issuecomment-1553493207
// (although that comment isn't exactly right, as the value overwritten is not simulated correctly).
//    t1 = MINSD x, y   => incorrect if x==NaN or x==-0,y==+0
//    t2 = MINSD t1, x  => fixes x==NaN case