importPath = dir[len(root)+1:]
			}
			// We started with parent's dir c:\gopath\src\foo\bar\baz\quux\xyzzy.
			// We know the import path for parent's dir.
			// We chopped off some number of path elements and
			// added vendor\path to produce c:\gopath\src\foo\bar\baz\vendor\path.
			// Now we want to know the import path for that directory.

				clobbers: buildReg("DI SI CX"),
			},
			faultOnNilArg0: true,
			faultOnNilArg1: true,
		},

		// (InvertFlags (CMPQ a b)) == (CMPQ b a)
		// So if we want (SETL (CMPQ a b)) but we can't do that because a is a constant,
		// then we do (SETL (InvertFlags (CMPQ b a))) instead.
		// Rewrites will convert this to (SETG (CMPQ b a)).
		// InvertFlags is a pseudo-op which can't appear in assembly output.

// Note: don't include AddPtr here! In order to maintain the
// invariant that pointers must stay within the pointed-to object,
// we can't pull part of a pointer computation above the AddPtr.
// See issue 37881.
// Note: we don't need to handle any (x-C) cases because we already rewrite
// (x-C) to (x+(-C)).

// x + (C + z) -> C + (x + z)

// shifts
// hardware instruction uses only the low 6 bits of the shift
// we compare to 64 to ensure Go semantics for large shifts
// Rules about rotates with non-const shift are based on the following rules,
// if the following rules change, please also modify the rules based on them.

// check shiftIsBounded first, if shift value is proved to be valid then we
// can do the shift directly.
// left shift

			// We found the main output in the cache.
			// If we don't need any other outputs, we can stop.
			// Otherwise, we need to write files to a.Objdir (needVet, needCgoHdr).
			// Remember that we might have them in cache
			// and check again after we create a.Objdir.
			cachedBuild = true
			a.output = []byte{} // start saving output in case we miss any cache results
			need &^= needBuild

	callbackMutex.Lock()
	callbackToken++
	i := callbackToken
	callbackFuncs[i] = f
	callbackMutex.Unlock()

	// Pass the address of i because the C function was written to
	// take a pointer.  We could pass an int if we felt like
	// rewriting the C code.
	C.callback(unsafe.Pointer(&i))

	callbackMutex.Lock()
	delete(callbackFuncs, i)
	callbackMutex.Unlock()
}

//export goCallback

spaces) and may also exclude the characters
<code>!"#$%&amp;'()*,:;&lt;=&gt;?[\]^`{|}</code>
and the Unicode replacement character U+FFFD.
</p>

<p>
Assume we have compiled a package containing the package clause
<code>package math</code>, which exports function <code>Sin</code>, and
installed the compiled package in the file identified by
<code>"lib/math"</code>.