tinygo/transform/llvm.go
Ayke van Laethem d905476231 all: refactor heap-to-stack transform into the transform package
Also add unit tests.

This is the first of several transformation (optimization/lowering)
passes that I'd like to move to the new transform package. This
separates the compiler from the optimizer.

Also, it finally adds unit tests for the compiler, not just end-to-end
compilation tests. This should improve robustness and should make it
easier to change these transformation passes in the future.
While the heap-to-stack transform is relatively simple, other passes are
much more complex. Adding unit tests not only helps robustness over
time, but also doubles as documentation as to what these transformation
passes do exactly.
2019-09-15 21:26:27 +02:00

17 строки
338 Б
Go

package transform
import (
"tinygo.org/x/go-llvm"
)
// Return a list of values (actually, instructions) where this value is used as
// an operand.
func getUses(value llvm.Value) []llvm.Value {
var uses []llvm.Value
use := value.FirstUse()
for !use.IsNil() {
uses = append(uses, use.User())
use = use.NextUse()
}
return uses
}