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llgo/ssa getDefer fix: move to function start

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This commit is contained in:
xushiwei
2024-06-03 09:56:39 +08:00
parent bdaf7ff30b
commit 922fabd935
2 changed files with 7 additions and 5 deletions
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8
cl/_testgo/defer/out.ll
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@@ -37,10 +37,6 @@ _llgo_2: ; preds = %_llgo_1, %_llgo_0
define i32 @main(i32 %0, ptr %1) {
_llgo_0:
store i32 %0, ptr @__llgo_argc, align 4
store ptr %1, ptr @__llgo_argv, align 8
call void @"github.com/goplus/llgo/internal/runtime.init"()
call void @main.init()
%2 = load ptr, ptr @__llgo_defer, align 8
%3 = call ptr @pthread_getspecific(ptr %2)
%4 = alloca i8, i64 40, align 1
@@ -51,6 +47,10 @@ _llgo_0:
%7 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Defer", ptr %4, i32 0, i32 2
store ptr %3, ptr %7, align 8
%8 = call i32 @pthread_setspecific(ptr %2, ptr %4)
store i32 %0, ptr @__llgo_argc, align 4
store ptr %1, ptr @__llgo_argv, align 8
call void @"github.com/goplus/llgo/internal/runtime.init"()
call void @main.init()
%9 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Defer", ptr %4, i32 0, i32 1
%10 = getelementptr inbounds %"github.com/goplus/llgo/internal/runtime.Defer", ptr %4, i32 0, i32 3
%11 = load i64, ptr %9, align 4

4
ssa/stmt_builder.go
View File

@@ -191,11 +191,12 @@ func (b Builder) deferKey() Expr {
func (b Builder) getDefer() *aDefer {
self := b.Func
if self.defer_ == nil {
// TODO(xsw): move to funtion start
// TODO(xsw): if in pkg.init?
// 0: proc func(uintptr)
// 1: bits uintptr
// 2: link *Defer
// 3: rund int
b.SetBlockEx(b.blk, AtStart, false)
prog := b.Prog
key := b.deferKey()
deferfn := prog.Null(prog.VoidPtr())
@@ -204,6 +205,7 @@ func (b Builder) getDefer() *aDefer {
ptr := b.aggregateAlloca(prog.Defer(), deferfn.impl, zero.impl, link.impl)
deferData := Expr{ptr, prog.DeferPtr()}
b.pthreadSetspecific(key, deferData)
b.SetBlockEx(b.blk, AtEnd, false)
self.defer_ = &aDefer{
key: key,
data: deferData,