c.GoDeferData; llgo/ssa: rm excepKey

cl/_testlibc/defer/in.go

@@ -1,12 +1,13 @@
 package main
 
-import "github.com/goplus/llgo/c"
+import "github.com/goplus/llgo/internal/runtime/c"
 
 func f(s string) bool {
 	return len(s) > 2
 }
 
 func main() {
+	c.GoDeferData()
 	if s := "hello"; f(s) {
 		defer c.Printf(c.Str("%s\n"), c.AllocaCStr(s))
 	} else {

ssa/cl_test.go

@@ -52,6 +52,7 @@ func TestMakeInterface(t *testing.T) {
 	b := fn.MakeBody(1)
 	b.MakeInterface(prog.Any(), prog.IntVal(100, prog.Int64()))
 	b.MakeInterface(prog.Any(), prog.FloatVal(100, prog.Float64()))
+	b.DeferData()
 	b.Return()
 }
 

ssa/eh.go

@@ -76,7 +76,6 @@ func (b Builder) Siglongjmp(jb, retval Expr) {
 
 const (
 	deferKey = "__llgo_defer"
-	excepKey = "__llgo_ex"
 )
 
 func (p Function) deferInitBuilder() (b Builder, next BasicBlock) {
@@ -121,10 +120,6 @@ func (b Builder) deferKey() Expr {
 	return b.Load(b.Pkg.newKey(deferKey).Expr)
 }
 
-func (b Builder) excepKey() Expr {
-	return b.Load(b.Pkg.newKey(excepKey).Expr)
-}
-
 const (
 	// 0: addr sigjmpbuf
 	// 1: bits uintptr

ssa/package.go

@@ -621,7 +621,6 @@ func (p Package) afterBuilder() Builder {
 // AfterInit is called after the package is initialized (init all packages that depends on).
 func (p Package) AfterInit(b Builder, ret BasicBlock) {
 	p.keyInit(deferKey)
-	p.keyInit(excepKey)
 	doAfterb := p.afterb != nil
 	doPyLoadModSyms := p.pyHasModSyms()
 	if doAfterb || doPyLoadModSyms {