mv _testcgo => _testrt

cl/_testrt/allocstr/out.ll

@@ -0,0 +1,47 @@
+; ModuleID = 'main'
+source_filename = "main"
+
+%"github.com/goplus/llgo/internal/runtime.String" = type { ptr, i64 }
+%"github.com/goplus/llgo/internal/runtime.Slice" = type { ptr, i64, i64 }
+
+@"main.init$guard" = global ptr null
+@0 = private unnamed_addr constant [13 x i8] c"Hello world\0A\00", align 1
+
+define %"github.com/goplus/llgo/internal/runtime.String" @main.hello() {
+_llgo_0:
+  %0 = call %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr @0, i64 12)
+  ret %"github.com/goplus/llgo/internal/runtime.String" %0
+}
+
+define void @main.init() {
+_llgo_0:
+  %0 = load i1, ptr @"main.init$guard", align 1
+  br i1 %0, label %_llgo_2, label %_llgo_1
+
+_llgo_1:                                          ; preds = %_llgo_0
+  store i1 true, ptr @"main.init$guard", align 1
+  br label %_llgo_2
+
+_llgo_2:                                          ; preds = %_llgo_1, %_llgo_0
+  ret void
+}
+
+define void @main() {
+_llgo_0:
+  call void @main.init()
+  %0 = call %"github.com/goplus/llgo/internal/runtime.String" @main.hello()
+  %1 = call i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.String" %0)
+  %2 = add i64 %1, 1
+  %3 = alloca i8, i64 %2, align 1
+  %4 = call ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr %3, %"github.com/goplus/llgo/internal/runtime.String" %0)
+  %5 = call i32 (ptr, ...) @printf(ptr %4)
+  ret void
+}
+
+declare %"github.com/goplus/llgo/internal/runtime.String" @"github.com/goplus/llgo/internal/runtime.NewString"(ptr, i64)
+
+declare i64 @"github.com/goplus/llgo/internal/runtime.StringLen"(%"github.com/goplus/llgo/internal/runtime.Slice")
+
+declare ptr @"github.com/goplus/llgo/internal/runtime.CStrCopy"(ptr, %"github.com/goplus/llgo/internal/runtime.String")
+
+declare i32 @printf(ptr, ...)