diff --git a/transform/allocs_test.go b/transform/allocs_test.go
index 42c5292d..9176b2ff 100644
--- a/transform/allocs_test.go
+++ b/transform/allocs_test.go
@@ -1,10 +1,12 @@
-package transform
+package transform_test
 
 import (
 	"testing"
+
+	"github.com/tinygo-org/tinygo/transform"
 )
 
 func TestAllocs(t *testing.T) {
 	t.Parallel()
-	testTransform(t, "testdata/allocs", OptimizeAllocs)
+	testTransform(t, "testdata/allocs", transform.OptimizeAllocs)
 }
diff --git a/transform/func-lowering_test.go b/transform/func-lowering_test.go
index ee3d019d..e8821245 100644
--- a/transform/func-lowering_test.go
+++ b/transform/func-lowering_test.go
@@ -1,10 +1,12 @@
-package transform
+package transform_test
 
 import (
 	"testing"
+
+	"github.com/tinygo-org/tinygo/transform"
 )
 
 func TestFuncLowering(t *testing.T) {
 	t.Parallel()
-	testTransform(t, "testdata/func-lowering", LowerFuncValues)
+	testTransform(t, "testdata/func-lowering", transform.LowerFuncValues)
 }
diff --git a/transform/gc_test.go b/transform/gc_test.go
index 64962f0a..70412d6b 100644
--- a/transform/gc_test.go
+++ b/transform/gc_test.go
@@ -1,21 +1,22 @@
-package transform
+package transform_test
 
 import (
 	"testing"
 
+	"github.com/tinygo-org/tinygo/transform"
 	"tinygo.org/x/go-llvm"
 )
 
 func TestAddGlobalsBitmap(t *testing.T) {
 	t.Parallel()
 	testTransform(t, "testdata/gc-globals", func(mod llvm.Module) {
-		AddGlobalsBitmap(mod)
+		transform.AddGlobalsBitmap(mod)
 	})
 }
 
 func TestMakeGCStackSlots(t *testing.T) {
 	t.Parallel()
 	testTransform(t, "testdata/gc-stackslots", func(mod llvm.Module) {
-		MakeGCStackSlots(mod)
+		transform.MakeGCStackSlots(mod)
 	})
 }
diff --git a/transform/globals_test.go b/transform/globals_test.go
index 0dcb0608..1b6f243b 100644
--- a/transform/globals_test.go
+++ b/transform/globals_test.go
@@ -1,14 +1,15 @@
-package transform
+package transform_test
 
 import (
 	"testing"
 
+	"github.com/tinygo-org/tinygo/transform"
 	"tinygo.org/x/go-llvm"
 )
 
 func TestApplyFunctionSections(t *testing.T) {
 	t.Parallel()
 	testTransform(t, "testdata/globals-function-sections", func(mod llvm.Module) {
-		ApplyFunctionSections(mod)
+		transform.ApplyFunctionSections(mod)
 	})
 }
diff --git a/transform/goroutine_test.go b/transform/goroutine_test.go
index e63b4923..4d4f0b19 100644
--- a/transform/goroutine_test.go
+++ b/transform/goroutine_test.go
@@ -1,14 +1,16 @@
-package transform
+package transform_test
 
 import (
 	"testing"
+
+	"github.com/tinygo-org/tinygo/transform"
 	"tinygo.org/x/go-llvm"
 )
 
 func TestGoroutineLowering(t *testing.T) {
 	t.Parallel()
 	testTransform(t, "testdata/coroutines", func(mod llvm.Module) {
-		err := LowerCoroutines(mod, false)
+		err := transform.LowerCoroutines(mod, false)
 		if err != nil {
 			panic(err)
 		}
diff --git a/transform/interface-lowering_test.go b/transform/interface-lowering_test.go
index e1c3c2dc..e1d56e48 100644
--- a/transform/interface-lowering_test.go
+++ b/transform/interface-lowering_test.go
@@ -1,15 +1,16 @@
-package transform
+package transform_test
 
 import (
 	"testing"
 
+	"github.com/tinygo-org/tinygo/transform"
 	"tinygo.org/x/go-llvm"
 )
 
 func TestInterfaceLowering(t *testing.T) {
 	t.Parallel()
 	testTransform(t, "testdata/interface", func(mod llvm.Module) {
-		err := LowerInterfaces(mod, 0)
+		err := transform.LowerInterfaces(mod, 0)
 		if err != nil {
 			t.Error(err)
 		}
diff --git a/transform/interrupt_test.go b/transform/interrupt_test.go
index 60d83da1..1740f485 100644
--- a/transform/interrupt_test.go
+++ b/transform/interrupt_test.go
@@ -1,8 +1,9 @@
-package transform
+package transform_test
 
 import (
 	"testing"
 
+	"github.com/tinygo-org/tinygo/transform"
 	"tinygo.org/x/go-llvm"
 )
 
@@ -11,7 +12,7 @@ func TestInterruptLowering(t *testing.T) {
 	for _, subtest := range []string{"avr", "cortexm"} {
 		t.Run(subtest, func(t *testing.T) {
 			testTransform(t, "testdata/interrupt-"+subtest, func(mod llvm.Module) {
-				errs := LowerInterrupts(mod, 0)
+				errs := transform.LowerInterrupts(mod, 0)
 				if len(errs) != 0 {
 					t.Fail()
 					for _, err := range errs {
diff --git a/transform/maps_test.go b/transform/maps_test.go
index 2bfc7fef..1f821d4b 100644
--- a/transform/maps_test.go
+++ b/transform/maps_test.go
@@ -1,8 +1,9 @@
-package transform
+package transform_test
 
 import (
 	"testing"
 
+	"github.com/tinygo-org/tinygo/transform"
 	"tinygo.org/x/go-llvm"
 )
 
@@ -10,7 +11,7 @@ func TestOptimizeMaps(t *testing.T) {
 	t.Parallel()
 	testTransform(t, "testdata/maps", func(mod llvm.Module) {
 		// Run optimization pass.
-		OptimizeMaps(mod)
+		transform.OptimizeMaps(mod)
 
 		// Run an optimization pass, to clean up the result.
 		// This shows that all code related to the map is really eliminated.
diff --git a/transform/panic_test.go b/transform/panic_test.go
index df078261..ea4efd0e 100644
--- a/transform/panic_test.go
+++ b/transform/panic_test.go
@@ -1,10 +1,12 @@
-package transform
+package transform_test
 
 import (
 	"testing"
+
+	"github.com/tinygo-org/tinygo/transform"
 )
 
 func TestReplacePanicsWithTrap(t *testing.T) {
 	t.Parallel()
-	testTransform(t, "testdata/panic", ReplacePanicsWithTrap)
+	testTransform(t, "testdata/panic", transform.ReplacePanicsWithTrap)
 }
diff --git a/transform/rtcalls_test.go b/transform/rtcalls_test.go
index 819dc5ac..9073b0ea 100644
--- a/transform/rtcalls_test.go
+++ b/transform/rtcalls_test.go
@@ -1,8 +1,9 @@
-package transform
+package transform_test
 
 import (
 	"testing"
 
+	"github.com/tinygo-org/tinygo/transform"
 	"tinygo.org/x/go-llvm"
 )
 
@@ -10,7 +11,7 @@ func TestOptimizeStringToBytes(t *testing.T) {
 	t.Parallel()
 	testTransform(t, "testdata/stringtobytes", func(mod llvm.Module) {
 		// Run optimization pass.
-		OptimizeStringToBytes(mod)
+		transform.OptimizeStringToBytes(mod)
 	})
 }
 
@@ -18,7 +19,7 @@ func TestOptimizeStringEqual(t *testing.T) {
 	t.Parallel()
 	testTransform(t, "testdata/stringequal", func(mod llvm.Module) {
 		// Run optimization pass.
-		OptimizeStringEqual(mod)
+		transform.OptimizeStringEqual(mod)
 	})
 }
 
@@ -26,6 +27,6 @@ func TestOptimizeReflectImplements(t *testing.T) {
 	t.Parallel()
 	testTransform(t, "testdata/reflect-implements", func(mod llvm.Module) {
 		// Run optimization pass.
-		OptimizeReflectImplements(mod)
+		transform.OptimizeReflectImplements(mod)
 	})
 }
diff --git a/transform/stacksize_test.go b/transform/stacksize_test.go
index c7c6cdec..c38a7b2f 100644
--- a/transform/stacksize_test.go
+++ b/transform/stacksize_test.go
@@ -1,9 +1,10 @@
-package transform
+package transform_test
 
 import (
 	"testing"
 
 	"github.com/tinygo-org/tinygo/compileopts"
+	"github.com/tinygo-org/tinygo/transform"
 	"tinygo.org/x/go-llvm"
 )
 
@@ -11,7 +12,7 @@ func TestCreateStackSizeLoads(t *testing.T) {
 	t.Parallel()
 	testTransform(t, "testdata/stacksize", func(mod llvm.Module) {
 		// Run optimization pass.
-		CreateStackSizeLoads(mod, &compileopts.Config{
+		transform.CreateStackSizeLoads(mod, &compileopts.Config{
 			Target: &compileopts.TargetSpec{
 				DefaultStackSize: 1024,
 			},
diff --git a/transform/transform_test.go b/transform/transform_test.go
index 28faf868..584ad435 100644
--- a/transform/transform_test.go
+++ b/transform/transform_test.go
@@ -1,4 +1,4 @@
-package transform
+package transform_test
 
 // This file defines some helper functions for testing transforms.
 
diff --git a/transform/wasm-abi_test.go b/transform/wasm-abi_test.go
index abe5b30d..a0912928 100644
--- a/transform/wasm-abi_test.go
+++ b/transform/wasm-abi_test.go
@@ -1,8 +1,9 @@
-package transform
+package transform_test
 
 import (
 	"testing"
 
+	"github.com/tinygo-org/tinygo/transform"
 	"tinygo.org/x/go-llvm"
 )
 
@@ -10,7 +11,7 @@ func TestWasmABI(t *testing.T) {
 	t.Parallel()
 	testTransform(t, "testdata/wasm-abi", func(mod llvm.Module) {
 		// Run ABI change pass.
-		err := ExternalInt64AsPtr(mod)
+		err := transform.ExternalInt64AsPtr(mod)
 		if err != nil {
 			t.Errorf("failed to change wasm ABI: %v", err)
 		}