govet: add 32bit variant of fieldalignment test

Author: realsn0w

pkg/golinters/govet/testdata/govet_fieldalignment_32.go

@@ -0,0 +1,58 @@
+//go:build 386 || arm || mips || mipsle
+//golangcitest:args -Egovet
+//golangcitest:config_path testdata/govet_fieldalignment.yml
+package testdata
+
+type gvfaGood struct {
+	y int32
+	x byte
+	z byte
+}
+
+type gvfaBad struct { // want "struct of size 12 could be 8"
+	x byte
+	y int32
+	z byte
+}
+
+type gvfaPointerGood struct {
+	P   *int
+	buf [1000]uintptr
+}
+
+type gvfaPointerBad struct { // want "struct with 4004 pointer bytes could be 4"
+	buf [1000]uintptr
+	P   *int
+}
+
+type gvfaPointerSorta struct {
+	a struct {
+		p *int
+		q uintptr
+	}
+	b struct {
+		p *int
+		q [2]uintptr
+	}
+}
+
+type gvfaPointerSortaBad struct { // want "struct with 16 pointer bytes could be 12"
+	a struct {
+		p *int
+		q [2]uintptr
+	}
+	b struct {
+		p *int
+		q uintptr
+	}
+}
+
+type gvfaZeroGood struct {
+	a [0]byte
+	b uint32
+}
+
+type gvfaZeroBad struct { // want "struct of size 8 could be 4"
+	a uint32
+	b [0]byte
+}

pkg/golinters/govet/testdata/govet_fieldalignment.go pkg/golinters/govet/testdata/govet_fieldalignment_64.go

@@ -1,3 +1,4 @@
+//go:build !(386 || arm || mips || mipsle)
 //golangcitest:args -Egovet
 //golangcitest:config_path testdata/govet_fieldalignment.yml
 package testdata

test/testshared/directives.go

@@ -136,6 +136,10 @@ func evaluateBuildTags(tb testing.TB, line string) bool {
 			return true
 		}
 
+		if tag == runtime.GOARCH {
+			return true
+		}
+
 		if buildTagGoVersion(tag) {
 			return true
 		}