build fix: llssa.Initialize before NewProgram

internal/build/build.go

@@ -88,15 +88,21 @@ const (
 )
 
 func Do(args []string, conf *Config) {
-	prog := llssa.NewProgram(nil)
-	sizes := prog.TypeSizes
-
 	flags, patterns, verbose := ParseArgs(args, buildFlags)
 	cfg := &packages.Config{
 		Mode:       loadSyntax | packages.NeedDeps | packages.NeedModule | packages.NeedExportFile,
 		BuildFlags: flags,
 	}
 
+	llssa.Initialize(llssa.InitAll)
+	if verbose {
+		llssa.SetDebug(llssa.DbgFlagAll)
+		cl.SetDebug(cl.DbgFlagAll)
+	}
+
+	prog := llssa.NewProgram(nil)
+	sizes := prog.TypeSizes
+
 	if patterns == nil {
 		patterns = []string{"."}
 	}
@@ -117,12 +123,6 @@ func Do(args []string, conf *Config) {
 		return
 	}
 
-	llssa.Initialize(llssa.InitAll)
-	if verbose {
-		llssa.SetDebug(llssa.DbgFlagAll)
-		cl.SetDebug(cl.DbgFlagAll)
-	}
-
 	var needRt bool
 	var rt []*packages.Package
 	load := func() []*packages.Package {

ssa/type.go

@@ -170,10 +170,12 @@ func SizeOf(prog Program, t Type, n ...int64) Expr {
 	return prog.IntVal(size, prog.Uintptr())
 }
 
+/*
 func OffsetOf(prog Program, t Type, i int) Expr {
 	offset := prog.OffsetOf(t, i)
 	return prog.IntVal(offset, prog.Uintptr())
 }
+*/
 
 func (p Program) PointerSize() int {
 	return p.td.PointerSize()